fireurza Posted July 21, 2013 Member ID: 677 Group: ***- Inactive Clan Members Followers: 19 Topic Count: 172 Topics Per Day: 0.03 Content Count: 1457 Content Per Day: 0.28 Reputation: 791 Achievement Points: 9890 Solved Content: 0 Days Won: 5 Joined: 11/02/09 Status: Offline Last Seen: January 16 Birthday: 02/20/1986 Device: Windows Share Posted July 21, 2013 so my ac was running a quite a bit warm today. so i popped the hood and checked to see if the compressor was running. it was not. i had my wife turn off the ac and the car then turn the car back on and turn the ac to max. the compressor came on temporarily then dropped. i do not have a high side pressure gauge just the gauge for the low side. when the car is off the low side is over 100 psi when the car is turned on and the ac is turned on the pressure drops to 80 psi for that split second the compressor clutch engages. i have a 2005 nissan altima and was going to just jump the relay to force the clutch to engage and see if its a bad clutch but unfortunately altimas of that year have a wired relay the is tied into something else and i really dont feel like splicing a lead to the battery in. Any one know how i can fix this. i dont think the clutch is bad but i cant test it. could the pressure be too high cause the system to shut off the clutch? Link to comment Share on other sites More sharing options... Awards
2_MANY_BEERS Posted July 21, 2013 Member ID: 96 Group: ** Registered Users Followers: 107 Topic Count: 1048 Topics Per Day: 0.20 Content Count: 8802 Content Per Day: 1.65 Reputation: 3290 Achievement Points: 62118 Solved Content: 0 Days Won: 5 Joined: 09/02/09 Status: Offline Last Seen: Tuesday at 09:20 PM Birthday: 06/30/1954 Device: Windows Share Posted July 21, 2013 Pressure switch is for too low of pressure and shuts off the clutch to the compressor. If you jumper the pressure switch and clutch kicks compressor over then you are too low on freon. Beers loaderXI, KaptCrunch and deerejon 3 Link to comment Share on other sites More sharing options...
ldoz Posted July 21, 2013 Member ID: 3530 Group: *** Clan Members Followers: 23 Topic Count: 42 Topics Per Day: 0.01 Content Count: 257 Content Per Day: 0.06 Reputation: 236 Achievement Points: 2540 Solved Content: 0 Days Won: 0 Joined: 07/06/12 Status: Offline Last Seen: Sunday at 02:52 AM Birthday: 05/07/1958 Device: Windows Share Posted July 21, 2013 If the clutch was bad it would not come on Most all systems have a low pressure & high pressure cut off switch Low normaly cut off between 20-28 psi High normaly cut off between 375- 425 psi It may just be low on refrigerant If it is DO NOT use refrigerant with sealer !! It can damage the compressor Use refrigerant with an oil charge loaderXI and KaptCrunch 2 Link to comment Share on other sites More sharing options... Awards
fireurza Posted July 21, 2013 Member ID: 677 Group: ***- Inactive Clan Members Followers: 19 Topic Count: 172 Topics Per Day: 0.03 Content Count: 1457 Content Per Day: 0.28 Reputation: 791 Achievement Points: 9890 Solved Content: 0 Days Won: 5 Joined: 11/02/09 Status: Offline Last Seen: January 16 Birthday: 02/20/1986 Device: Windows Author Share Posted July 21, 2013 i tested a theory and let out some pressure from the low side and the thing came right on. after letting quite a bit out the low side is staying around 45 psi Link to comment Share on other sites More sharing options... Awards
KaptCrunch Posted July 22, 2013 Member ID: 389 Group: *** Clan Members Followers: 45 Topic Count: 295 Topics Per Day: 0.06 Content Count: 4456 Content Per Day: 0.84 Reputation: 3617 Achievement Points: 36427 Solved Content: 0 Days Won: 39 Joined: 09/14/09 Status: Offline Last Seen: 2 hours ago Birthday: 01/01/1970 Device: Windows Share Posted July 22, 2013 If the clutch was bad it would not come on Most all systems have a low pressure & high pressure cut off switch Low normaly cut off between 20-28 psi High normaly cut off between 375- 425 psi It may just be low on refrigerant If it is DO NOT use refrigerant with sealer !! It can damage the compressor Use refrigerant with an oil charge Beers is correct the feon 134a has leaked out an safety switch is kicked in to save comp the condensor, seals are # 1 spots for leaks an evap need to pressure test system with nitrogen (500lbs) over nite if didn't find right away repair leak than fill R134a 1lbs and compresuire pag Oil Link to comment Share on other sites More sharing options... Awards
Damage_inc- Posted July 22, 2013 Member ID: 2048 Group: ***- Inactive Clan Members Followers: 0 Topic Count: 294 Topics Per Day: 0.06 Content Count: 6689 Content Per Day: 1.37 Reputation: 4709 Achievement Points: 48999 Solved Content: 0 Days Won: 5 Joined: 12/15/10 Status: Offline Last Seen: November 29, 2023 Birthday: 05/30/1967 Device: Windows Share Posted July 22, 2013 bring it to a tech.its low or leaked out.or just buy a $30. kit at autozone and spend 15 minutes topping it off.gl Link to comment Share on other sites More sharing options... Awards
spinpuppy Posted July 22, 2013 Member ID: 3682 Group: ++ COD5 Admin Followers: 56 Topic Count: 178 Topics Per Day: 0.04 Content Count: 1834 Content Per Day: 0.43 Reputation: 1747 Achievement Points: 14780 Solved Content: 0 Days Won: 3 Joined: 08/27/12 Status: Offline Last Seen: March 11 Birthday: 01/12/1960 Device: Android Share Posted July 22, 2013 when the compressor is running, is the condensation on the low side tubing freezing? If this is happening, u need a charge Link to comment Share on other sites More sharing options... Awards
KaptCrunch Posted July 22, 2013 Member ID: 389 Group: *** Clan Members Followers: 45 Topic Count: 295 Topics Per Day: 0.06 Content Count: 4456 Content Per Day: 0.84 Reputation: 3617 Achievement Points: 36427 Solved Content: 0 Days Won: 39 Joined: 09/14/09 Status: Offline Last Seen: 2 hours ago Birthday: 01/01/1970 Device: Windows Share Posted July 22, 2013 bring it to a tech.its low or leaked out.or just buy a $30. kit at autozone and spend 15 minutes topping it off.gl Venting HFC-134a Refrigerant Section 608 of the Clean Air Act prohibits releasing HFC-134a into the atmosphere. The prohibition on venting HFC-134a has been in effect since November 1995. Link to comment Share on other sites More sharing options... Awards
KaptCrunch Posted July 22, 2013 Member ID: 389 Group: *** Clan Members Followers: 45 Topic Count: 295 Topics Per Day: 0.06 Content Count: 4456 Content Per Day: 0.84 Reputation: 3617 Achievement Points: 36427 Solved Content: 0 Days Won: 39 Joined: 09/14/09 Status: Offline Last Seen: 2 hours ago Birthday: 01/01/1970 Device: Windows Share Posted July 22, 2013 when the compressor is running, is the condensation on the low side tubing freezing? If this is happening, u need a charge i say need to flush and Evac system Link to comment Share on other sites More sharing options... Awards
BUDMAN Posted July 22, 2013 Member ID: 800 Group: *** Clan Members Followers: 152 Topic Count: 135 Topics Per Day: 0.03 Content Count: 6940 Content Per Day: 1.32 Reputation: 4486 Achievement Points: 58192 Solved Content: 0 Days Won: 6 Joined: 11/27/09 Status: Offline Last Seen: 4 hours ago Birthday: 05/29/1957 Device: Windows Share Posted July 22, 2013 To properly diagnose this .....will need both high side and low side pressures car @idle and about 1500 rpms with more reading. And readings after it is off to see what the pressures do. Link to comment Share on other sites More sharing options... Awards
CobraBites Posted July 22, 2013 Member ID: 2313 Group: Fallen Members Followers: 0 Topic Count: 330 Topics Per Day: 0.07 Content Count: 4924 Content Per Day: 1.03 Reputation: 3034 Achievement Points: 33897 Solved Content: 0 Days Won: 4 Joined: 03/19/11 Status: Offline Last Seen: August 2, 2017 Birthday: 05/26/1974 Share Posted July 22, 2013 i agree with damage ur better off taking it to professional ....for them to check the air only like 40-75 dollars for them to fix...ur not goin to figure it out properly unless u know something bout air units on cars trust i been there done that and i use to work on cars..gl to u Link to comment Share on other sites More sharing options...
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