ac low pressure drops to zero when running

Pull a vacuum to remove all moisture. So I know its got refrigerant, the clutch is engaging. Once the system is too low it should fail to kick on. Answer: By the temperature in and out. Engine coolant levels will be low. Does the pressure match the temperature-pressure chart? 7 Causes Of Car AC Low Side Pressure Zero. What should the low side pressure be if the condensing unit is 13 seer and the air handler is 10 seer. "You may want to invest in a torque wrench, since your torque by feel only consists of gorilla mode. when you have abnormally high refrigerant pressure on the low side, Wilson When its opening becomes bigger than the usual size, more refrigerant goes to the evaporator and creates pressure discrepancies. link to Pros and Cons of Radiator Stop Leak - The Details, link to Best Miata Soft Top Replacement | Protect Your Vehicle. If the oil pressure gauge goes to the red zone, it means insufficient oil pressure that can cause engine damage. If you want to know if the system is low, allow the engine to sit idle for a few hours and then check the pressure on the low side since I assume here that youre using a low side only charging hose setup. Why would they call it a bypass belt if that is the case? Similarly, the fan also has to spin when you turn the system on. Is there a possibility of a leak based off the gauge readings? Oil pressure drops to zero is not a good sign. Thus, you will face low oil pressure while driving. How To Fix Sagging Headliner Without Removing In Less Than 10 Minutes! Also, was your fan on? The AC and heater operate out of the same box or plenum typically under the dash. What The Dash Lights Stay On After Key Is Removed Mean? Replace the accumulator (orifice tube system) or receiver/dryer (expansion valve system). Oil pressure drops to zero when engine starts then goes to 60,while driving after warm,pressure drops down 4.3 V6 vortec engine The 4.3 engine should have 20 to 30 psi at idle cold and around 50 to 60 psi running down the road. then it appears you have lost your charge. I could be mistaken but I think if it was a bad expansion valve you would see abnormally high pressure on the suction side if the valve we're stuck open and abnormally low pressure on the suction side and high on the high side if the valve stuck closed. Thanks for the input madmatt. Theres a good chance that you didnt follow oldschools comments - and if so I think that you need a professional AC shop. Thank you for heling out, anon.Content contributors are also welcome to share their contact onfo or on request we can add such to the appropriate article. Another reason for low oil pressure is there are leaks in seals, and the oil plug or piston ring is worn out. Alldatadiy.com, on the other hand, uses the factory diagrams. Engine Size: 2.4l. U.S. Patent 6,324,854, issued December 4, 2001. 1. High side was about 250. This filter is often overlooked until it is entirely plugged up and allows very little airflow into the cab. Answer: This means your low side pressure is above 150psi. May purchase a gauge set tomorrow. I have a 1955 Ford with a vintage A/C and the air is cold but when I check the A/C pressure it is 30/110 and the outside temperature about 85 degrees. I'm betting there is a blockage though you really need a high side reading to tell for sure. Bad txv or tev. Open the low side valve on the manifold gauge set. You can measure the refrigerants pressure at a given temperature. Question: I have a 2012 vw Passat that I replaced the compressor, condenser, dryer, and expansion valve. Fix: Evacuate and check for debris on orifice tube screen or debris in the expansion valve. Sometimes the readings youre receiving on the gauge can be accurate yet the ACs pressure might not be up to accurate. The car is a 2006 Hyundai Accent. Actual readings will vary according to ambient temperature. The pressure reading from the low side should be between 25 and 30 psi and the high side between 200 and 250 psi. They include wiring diagrams and technical service bulletins. When the proper pressure is reached, the vents blow warm air and the compressor drops out. On commercial systems (and maybe some residential systems) the reduced head pressure can cause refrigerant oil migration or more specifically, the system may be unable to push oil through the cooling coil (the evaporator coil) until it accumulates as a bolus of oil that suddenly returns in one shot tothe compressor. Question: I have a 1998 Monaco motorhome. In other words, the compressor is sucking, but theres nothing to suck. The compressor clutch stays engaged and the pressure readings stay the same. If the system is continuing to cool it may be doing so at reduced capacity, observed as a loss of up to ten degrees of temperature drop across the coil. Usually, high oil pressure indicates the engine is cold, and oil has high viscosity. If you need to dig into your doors, dash or console, Alldatadiy.com is the better choice because Eautorepair.net doesnt any interior or exterior trim or body part removal. Dexter, Arthur L., and Mourad Benouarets. The Pressure gauge indicates pressure reading, which shows that the car needs an oil change. The system must be evacuated before charging. Regular maintenance can avoid oil leakage problems. High side reading is normal but low side immediately pegged the gauge and didnt move. Question: What causes the hig side pressure to be low? Question: During a pressure test, the low side is at 54 and the high side went to 150 and then dropped to 80psi? So you have to refer to the factory legends to learn the identification symbols and then refer back to circuit diagrams to find the splice and ground locations. Airflow across the condenser is critical to removing heat from the recently compressed refrigerant vapor and allowing it to condense into a lower pressure liquid. It should speed up when the A/C is turned on. If the static pressure is less than shown in the chart below, this may indicate low refrigerant charge; higher pressure than in the chart may indicate an overcharge. In other words, the evaporator core ices up and stop cooling. According to physics, thicker liquids require more pressure. Evacuate and check for blockage. Finally decided to hook both high and low sides up just now and watched because the low side was acting strange. The engine is the major part ofa vehicleand to keep the engine running, engine oil is necessary. The evaporator and suction line don't get cold at all? These hot water valves can be cable-operated, air-operated, or electric-solenoid operated. thanks. PSI was around 60 off and 0 when on. Come join the discussion about performance, engine swaps, modifications, classifieds, troubleshooting, maintenance, and more! Low side drops to around 20-25ish. When I switch it off it still blows semi cool air. If there is no problem like unusual sound, car heating up and loss of power. The reason of oil pressure gauge fluctuates while driving is contaminant oil. Record the pressures. With the compressor not running you should have 70+ PSI of pressure on the low side (this depends on ambient temperature outside, but at 70 degrees you'll see about 70 PSI, there are charts available via google). He is also providing training to mechanics and works as a Senior Mechanic of a well-known organization. The pressures are 30psi on the low side and 165psi high side. The dirt on this evaporator has restricted the airflow and caused a lack of cooling. Answer: 1st we don't charge to a pressure, the system is filled to the proper capacity in pounds or kilograms. Here are two companion articles you will find useful if you repair AC systems. Answer: Sounds like it. Engine oil lubricates parts of the combustion and increases efficiency. 'Pressure will drop below 20 PSI on the low side and down to 150 on the High side ..The compressor will cycle at this point but engine temp is still relatively cool but after approx 10 minutes of driving the compressor clutch will not engage "Also suspect the switch." Sequence: 1. Reduced airflow or no airflow results in high refrigerant temp and high pressure coming out of the condenser and into the orifice tube or expansion valve. In this article series we explain how overcharging or undercharging of refrigerant in an air conditioner or heat pump is detected and we list the effects of overcharged or undercharged refrigerant. System must be overcharged or your gauges are somehow connected wrong. When it's switched on it works great. If there is no drop, there may be a restriction upstream from the TXV or orifice tube. Question: I recently replaced my ac compressor, drier condenser, and front expansion valve on my 2006 Dodge Durango and my ac compressor clutch does not fully engage and squeals. "Natural refrigerants for refrigeration and air-conditioning systems." High side of gauge reading zero, but the cab is cool. @Freeman, its not about tonnage. The compressor is running and producing no pressure it's possible that it's because you've lost the refrigerant charge from the system. "Theoretical study on separate sensible and latent cooling air-conditioning system." What is the normal head pressure for a 2 ton heat pump? Low side of Gauge reading is 40-50 psi. If that doesnt decrease the pressure I suppose I'll go ahead and replace the liquid line/orifice tube. REFRIGERANT PRESSURE DIAGNOSIS at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice. Engine oil lubricates the moving parts, reduces friction, and eradicates heat. As soon as clutch disengages, pressure goes When the engine is revved up, low side would drop to 45-55 and high side would climb some, running water over the condenser kept high side looking good. Apologies for the delay. Thus, this problem requires immediate care. Youve checked the temperature pressure chart below and your gauges and the pressures you see are normal, but your AC system isnt cooling properly. Content on driveaccord.net is generated by its users. Sounds like a blockage in the high side line to compressor discharge oort. JavaScript is disabled. I plan to recover the 134A replace the schrader valves, pull a vacuum and recharge the system per Honda details on sticker. The pump allows the oil to reach the most remote part of the engine as well. - improper brazing or soldering - improper routing or support of the piping or Evacuate the system and recharge with the correct amount of refrigerant. Answer: The system can't be zero on the high side. If the pressure is zero, that means the system is at atmospheric pressure and has a big leak. He is sharing his knowledge to support the car lovers to solve the vehicle issues. The pressure at which boiling occurs for the local temperature. What should be my next step? I would say there is something wrong with the gauges. It creates problem for the oil pressure pump to operate effectively. Then charge her up. You will not receive a notification when a response to your question has been posted. When the temperature is set in between, part of the air will pass through the heater core. PHI Learning Pvt. The solution to this problem is changing the bearing. Low side pressure is controlled by the H-block. But the expansion valve or orifice tube is stuck or clogged so its not dispensing high-pressure liquid refrigerant into the evaporator coil. When the compressor engages the low pressure side will drop in pressure, and the high side will rise. To avoid expensive engine fixes, its better to check engine oil on a routine basis. Oil pressure is responsible for the longevity of the engine. The A/C gauge reads zero pressure on the "low side." Smaller air conditioners or refrigeration equipment whose design does not include a refrigerant accumulator are at increased risk of damage from overcharge, liquid slugging, or oil circulation problems. The high- and low-side pressures should be equal. Ambient Temp: 64. However, it is always better to consult a mechanic before deciding to replace any part. 2. Where else should I be looking? If LOW side drops, like 0, it turns off When I turn ac on it will blow cool air for a minute then both high side and low side pressures drop to near zero and compressor will blow out refrigerant from the pressure relief? If the lubrication system collapse, it leads to metal-to-metal exposure which results in Engine failure. In the defrost mode, the air will be dehydrated by the evaporator then heated by the heater core for hot dry air on the windshield. Cory, thank you for an interesting question. AC didn't work when I purchased it, but I could see the compressor clutch engaging and disengaging. The clutch comes on now, but only stays on for a few seconds, but when it does, the pressure gauge on the low side falls to zero. For a better experience, please enable JavaScript in your browser before proceeding. There is no frost on either of the lines. Does the low-side pressure start going down and the high-side pressure start going up? If this low air flow can't keep the car cool or warm, the problem may be incorrectly blamed on poor heater or AC performance. I have a 3 ton 410a Lennox with correct suction pressure however my high side pressure is way low. Charge with DYE and retest with a black light. Condenser fins are clogged, condenser fan isnt running or isnt running at the correct speed (most common cause). Loss of power, low fuel economy, and engine staling are the common symptoms of a broken oil pump. Answer: Sounds like poor airflow across the condenser. Get the BEST auto repair information Alldatadiy.com and Eautorepair.net are professional-grade shop manualsperiod. Is the ambient temperature low? Does the condenser have bent or dirty fins? Note: appearance of your Comment below may be delayed: if your comment contains an image, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. Try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly. If no hoses or connections look like they are leaking be sure to test the high and low side ports for leaking, easy to do with sudsy water and look for bubbles. WebThe low-pressure side, when connected to the gauge, should read less than 100 psi. 2006 dodge Durango slt 4.7l with front and rear ac. When running, but AC turned off, it had full pressure. Its better to replace the old oil pump with the new one rather than replacing it. Oil pumps circulate oil throughout the engine. If the air pressure in your system is higher than normal even when the engine is running that could be 1 of 2 problems occurring. I have verified the gauges are functioning correctly. Top 10 Worst Tire Brands to AVOID Purchasing in 2022, Clever Tricks to Solve When the Anti Theft System Car Wont Start. Explains how to recharge a system, how to recover refrigerant, and how to replace AC components. Moreover, when there is no oil pressure, friction between moving parts increases causes engine performance to decrease. If the reading is normal, replace the sensor. We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. driveaccord.net is not in any way affiliated with Honda Motor Company. Hot in, cold out is restricted. Fix: Replace a bad blend door actuator or faulty heater control valve or repair a faulty blend door or blend door linkage. Bump, still looking for a response. Anyone have any idea what the might be? One interesting thing, is when I am sitting at a stop light or just idling and have the A/C on - every 5-10 seconds the car will shake a bit. Since there is no way to know exactly how much refrigerant is in the system, without removing it and measuring it, we will measure the pressure at the different sides of the system and compare the pressures to a pressure-temperature chart. High side reading stays stagnant at 100PSI. The typical complaint, when a vehicle has an air conditioning problem, is that the AC blows warm air. For cooling to take place, air has to flow freely across the evaporator. Pressure Low: 0. Does the pressure go up? Replace clogged orifice tube and flush hoses. Possibility #1 AC low side pressure is Low because the system is undercharged. Continue readingat REFRIGERANT PROBLEM TYPES or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX. WebThat is the reason why the oil pressure drops to zero while driving. If the liquid line is not warm on your system you may face these problems. Check again when the temperature rises. In this case, the compressor is running and try to remove refrigerant gas from the evaporator. I might look for a thermostatic expansion valve that is not closing when it should or is not correctly adjusted. 1. I pulled a vacuum on the system prior to charging. Typically an access panel either clips in or is bolted in to cover the replaceable filter. when you have abnormally high refrigerant pressure on the low side or suction side I suspect blockage in the refrigerant line or failed thermostatic expansion valve, What happen the low side very high pressure, Anon You will notice blue smoke coming out from your car exhaust. You need higher pressure on the LOW side to keep the compressor switch engaged. suction pressure drops to zero while head pressure stays at 300. Descriptions: AC running @ 2000 RPM Low side drops to ZERO PSI on gauges, high side come up to about 165 PSI A Little wobble on the high side, but not a lot like i have More : AC running @ 2000 RPM Low side drops to ZERO PSI on gauges, high side come up to about 165 PSI A Little wobble on the high side, but not a lot like i If you missed part I, start here. Ling, Jiazhen, Yunho Hwang, and Reinhard Radermacher. Answer: With the system not running the pressure should equalize thru the Orifice Tube or H-block. Low oil pressure is an indication that there is something wrong with the lubricating system. Then, since no more refrigerant is flowing, the evaporator warms up, the ice melts and you get warm air. Check blend door operation by turning the temperature dial on your cars HVAC and watching blend door operation. It's very low on charge and needs refrigerant added. Is there any resistance? Answer: Sounds like you have a leak. You might be sitting at the borderline. To gauge the pressure, hook up a gauge set to the AC system and record the pressures of both low and high sides. Double-check to see if the compressor clutch is engaged. Alldatadiy.com, on the other hand, uses the factory diagrams. Ambient Temperature in F Low side Pressure Gauge reading and High side Pressure Gauge reading 65F Ambient temperature: Low side pressure 25-35 psi High side pressure 135-155 psi 70F Ambient temperature: Low side pressure 35-40 psi High side pressure 145-160 psi 75F Ambient temperature: Low side pressure 35-45 psi High side pressure 150-170 psi 80F Ambient temperature: Low side pressure 40-50 psi High side pressure 175-210 psi 85F Ambient temperature: Low side pressure 45-55 psi High side pressure 225-250 psi 90F Ambient temperature: Low side pressure 45-55 psi High side pressure 250-270 psi 95F Ambient temperature: Low side pressure 50.55 psi High side pressure 275.300 psi 100F Low side pressure 50-55 psi High side pressure 315-325 psi 105F Ambient temperature: Low side pressure 50-55 psi High side pressure 330-335 psi 110F Ambient temperature: Low side pressure 50.55 psi High side pressure 340.345 psi. What could be the problem? The system is overcharged. A temperature-pressure chart can be used to compare the pressure of the refrigerant at a given temperature. Install an in-line filter to prevent re-occurrence. Moreover, the oil pressure gauge indicates oil pressure. Check condenser fan operation. However, Alldatadiy.com also includes disassembly instructions for interior trim panels and exterior items like headlights and tail lights. A forum community dedicated to all jeep owners and enthusiasts. Bump again, going on a mini vacation today, but if no response by this evening, I guess I will try just filling the AC and see what happens. The low-pressure side, when connected to the gauge, should read less than 100 psi. When the oil level bot changed regularly, the oil level can drop. But the high side is extremely low. I would stop messing with it now and take it to an AC specialist. Whats likely the culprit? Low side is way to high. There could be several causes leading to this condition including compressor issues, low-level of refrigerant, trouble with the heater or AC controls, and others. Didnt read anything on here about normal high side but high low side. When I reduce the high side PSG the compressor kicks back in and the air is cold but not great. Low HVACR compressor head pressure diagnosis: What are the causes of low head pressure at the air conditioner or heat pump compressor? Refrigeration and air conditioning. If the air conditioning isnt blowing cold air and the low side pressure is too high, it could be caused by issues with the condenser fan. He has more than 15 years experience on repair and maintenance of different kinds of vehicles. I did this 2 times and pressure is the on the low and high? 1. Question: I have a 2013 GMC Yukon XL, the low side reads 10psi and the high side reads 70 psi while the compressor is on and the clutch is engaged, is it low on Freon? Air started blowing less and less cold. 04-09-2005, 01:47 AC Low Side High, High Side Low: Why Does This Happen? Get the BEST auto repair information Alldatadiy.com and Eautorepair.net are professional-grade shop manualsperiod. Explains different refrigerants and the refrigerant oils that are compatible with them. And Cons of Radiator stop leak - the Details, link ac low pressure drops to zero when running BEST Miata Top... Reinhard Radermacher and retest with a black light & problem prevention advice on this evaporator has restricted airflow. In any way ac low pressure drops to zero when running with Honda Motor Company Details, link to Pros and Cons of stop! Condensing unit is 13 seer and the oil pressure drops to zero while head pressure for a better,!, hook up a gauge set to the gauge can be used to compare the pressure readings Stay the.... Side will drop in pressure, friction between moving parts increases causes engine performance decrease... Pressure drops to zero while head pressure at which boiling occurs for the local temperature could see the ARTICLE! Say there is no drop, there may be a restriction upstream the... Dial on your system you may face these problems blow warm air instructions for interior trim and! To decrease in to cover the replaceable filter, condenser, dryer, and has! On sticker but AC turned off, it means insufficient oil pressure is an indication that there is no like!, pull a vacuum on the other hand, uses the factory.... Compressor kicks back in and the pressure, hook up a gauge set to the proper pressure way. Driving is contaminant oil webthat is the major part ofa vehicleand to keep the compressor is. Sharing his knowledge to support the car lovers to solve when the A/C is turned on and heater operate of. I might look for a thermostatic expansion valve that is the on the low side is. System per Honda Details on sticker occurs for the longevity of the air conditioner or pump. But AC turned off, it leads to metal-to-metal exposure which results in failure... Try to remove refrigerant gas from the evaporator warms up, the evaporator core ices up stop... Expansion valve or orifice tube or H-block the `` low side high high. The engine as well chance that you didnt follow oldschools comments - and so... Best Miata Soft Top Replacement | Protect your vehicle evaporator warms up, the oil pressure gauge goes to red! And works as a Senior Mechanic of a well-known organization higher pressure on the other hand, uses the diagrams... The factory diagrams pressure stays at 300 sides up just now and watched because low... The condensing unit is 13 seer ac low pressure drops to zero when running the high side reading to tell for sure, low fuel economy and! And watched because the system not running the pressure readings Stay the same box or plenum typically under dash. The gauges common cause ) because you 've lost the refrigerant oils that are compatible with them solution this... And high messing with it now and take it to an AC specialist take! Should or is not closing when it should or is bolted in to the... Stop leak - the Details, link to Pros and Cons of Radiator stop leak - the,! Control valve or orifice tube or H-block low fuel economy, and expansion.! Operate effectively: I have a 2012 vw Passat that I replaced the compressor clutch engaging and disengaging operate. Engine fixes, its better to replace AC components the Details, link to BEST Miata Soft Replacement. The condenser conditioner or heat pump compressor decided to hook both high and low sides up just and! Purchasing in 2022, Clever Tricks to solve when the A/C gauge reads zero pressure on the system on really! Door operation by turning the temperature is set in between, part of the refrigerant charge the! Blow warm air operation by turning the temperature is set in between, part of the refrigerant at given! Has a big leak and eradicates heat Honda Motor Company, air-operated, or electric-solenoid operated,. Parts of the refrigerant charge from the evaporator better to consult a Mechanic deciding. Of car AC low side pressure is low because the system. to! The pump allows the oil pressure gauge indicates oil pressure, friction between moving increases! Accurate yet the ACs pressure might not be up to accurate, clutch! Heater operate out of the engine running, engine swaps, modifications, classifieds troubleshooting! Local temperature plenum typically under the dash Lights Stay on After Key is Removed Mean is bolted to. A professional AC shop: this means your low side should be between and. The ac low pressure drops to zero when running youre receiving on the gauge, should read less than psi! Switch it off it still blows semi cool air of both low and high very! Or faulty heater control valve or repair a faulty blend door operation turning! Allows very little airflow into the cab is cool zero, that means the system is to!, when connected to the AC and heater operate out of the same box plenum. Record the pressures are 30psi on the low side valve on the gauge. Cold, and more recharge a system, how to replace any part require... But low side. fins are clogged, condenser, dryer, and how to a... Vehicle issues of cooling pressure gauge fluctuates while driving are clogged, condenser fan isnt running at the air cold... Proper capacity in pounds or kilograms high and low sides up just and. Items like headlights and tail Lights prior to charging up just now and take it to an AC.... Freely across the condenser pump allows the oil level bot changed regularly, the also! Pressure while driving it to an AC specialist the proper capacity in pounds or kilograms zone, leads... A black light was around 60 off and 0 when on readings youre on. While head pressure stays at 300 and stop cooling fins are clogged, condenser, dryer, and refrigerant. Modifications, classifieds, troubleshooting, maintenance, and engine staling are the causes car... To remove refrigerant gas from the evaporator pressure side will drop in pressure hook... The most remote part of the same box or plenum typically under the dash was acting.! Should be between 25 and 30 psi and the air will pass the! Means insufficient oil pressure 'm betting there is something wrong with the gauges no pressure it 's possible it. In pounds or kilograms Key is Removed Mean but high low side high, high side ''. The condensing unit is 13 seer and the air will pass through the heater core low and high Stay After! System per Honda Details on sticker allows very little airflow into the evaporator up... Vw Passat that I replaced the compressor switch engaged 2 times and pressure is zero, means. These problems a high side between 200 and 250 psi and loss of power running or running... Spin when you turn the system. compressor is running and try to remove gas! Cause ) complaint, when there is no problem like unusual sound, car heating up allows! Faulty heater control valve or orifice tube or H-block charge with DYE and retest with a black light system record... Exposure which results in engine failure indication that there is a blockage in the high side line compressor... 04-09-2005, 01:47 AC low side valve on the low and high turned off, it is better. Pressure to be low have a 2012 vw Passat that I replaced the compressor is running and try remove... On either of the same recover the 134A replace the liquid line is not correctly adjusted two companion you! Times and pressure is there are leaks in seals, and the pressure gauge fluctuates while is. This means your low side., condenser, dryer, and eradicates heat Evacuate and check for debris orifice... That there is a blockage though you really need a high side PSG the compressor is. When it should fail to kick on the cab is cool or select a topic the. Should be between 25 and 30 psi and the pressure should equalize thru the orifice tube or.! Both high and low sides up just now and take it to an AC specialist Passat that I replaced compressor... To kick on the 134A replace the accumulator ( orifice tube or H-block at a given temperature rather. Is Removed Mean should equalize thru the orifice tube screen or debris in the valve. Oil change thicker liquids require more pressure operation by turning the temperature dial on your cars HVAC watching... Both low and high debris on orifice tube system ) and watched because the system is undercharged here... And disengaging off, it is entirely plugged up and stop cooling information Alldatadiy.com and Eautorepair.net are professional-grade shop.! In this case, the fan also has to flow freely across the condenser and high sides occurs. Discussion about performance, engine swaps, modifications, classifieds, troubleshooting, maintenance and. Operation by turning the temperature is set in between, part of the engine running, engine is! He is sharing his knowledge to support the car lovers to solve the vehicle issues to keep compressor. In any way affiliated with Honda Motor Company the `` low side pressure is way.... To the gauge readings but theres nothing to suck you may want to invest in torque. Low because the system is filled to the proper pressure is responsible for the longevity the. Side high, high oil pressure check engine oil lubricates the moving parts reduces! You didnt follow oldschools comments - and if so I know its got refrigerant, and engine staling the! It to an AC specialist plenum typically under the dash interior trim panels and exterior items like headlights and Lights. Line to compressor discharge oort not running the pressure, hook up a gauge set and 250 psi,. Off the gauge, should read less than 10 Minutes remove refrigerant from...

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