1999-2009 [Subscribe to Daily Digest] |
[Main 95 Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
A/C HELP Posted by saabsince 93b [Email] (#972) [Profile/Gallery] (more from saabsince 93b) on Wed, 26 Jul 2017 16:22:37 Members do not see ads below this line. - Help Keep This Site Online - Signup |
I am currently working on the A/C on a 2003 and a 2004 Saab Aeros.
The most puzzling is the 2004 which has had a couple of leaks fixed. It vacuumed down really well and held the vacuum, so I have lots of confidence in the integrity of the refrigerant part. I then serviced with the right amount of R134a.
It cooled very well initially and now the computer will no longer provide ground to the a/c compressor relay. If I jump the relay the compressor starts and I get good cold air and the Tech 2 tells me good pressure of 18 bar or so.
The electric fans don't run and the evaporator temp is 41 degrees F. Never moves.
I have studied all the inputs the computer needs to ground the relay. I am wondering if the Evaporator sensor is stuck at 41 degrees or is defective.
The 2003 also shows the evaporator temp at 41 degrees. This one does still have a leak, so I have to fix that first.
Will a bad temp sender at the evaporator stop the A/C compressor from turning on?
Any suggestions??
_______________________________________ NOW OWN: 2000 95 Imola Red Aero 5 door stick - my ride HAVE OWNED: 2003 95 Black Aero 4 door auto Mary Ann's car 2004 95 Black Aero 5 door wagon 2001 95 Silver Aero 4 door stick 2001 95 Silver Aero 5 door wagon automatic 1999 95 Combi stick 1997 9000 Aero stick red 1988 900 SPG black 1988 900 Convertible black 1985 900 3 door turbo spg kit silver 1979 900 3 door turbo early 900 production 1966 96 2 stroke red 1960 95 wagon red 1959 93b light yellow
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.