ac problems in 98' TA

**clubberlang** · 07-23-2010, 10:42 AM

my AC compressor keeps bumpng on and off very quickly in a short amount of time. I have taken it to a couple of garages and had several things replaced, but still no solution. I have replaced the compressor, alternator, and the pressure switch. Anybody with any suggestions?

**Cutlass** · 07-23-2010, 07:33 PM

Is the system fully charged with freon? A low charge will cause the compressor to cycle on and off

**clubberlang** · 07-24-2010, 08:50 AM

yes, the system is fully charged

**Cutlass** · 07-24-2010, 11:23 AM

Well I would think that maybe there is an electrical problem then. Possibly the AC compressor relay or the ground for the compressor might be the problem.

**00ls-1** · 07-24-2010, 11:25 AM

there should be 2 switches also...did u replace high or low pressure?

**Cutlass** · 07-24-2010, 11:35 AM

nope, only one switch on these cars

**00ls-1** · 07-24-2010, 11:42 AM

oh ok... all the trucks at work have 2...my bad

**Cutlass** · 07-24-2010, 05:23 PM

^^^yeah thats true for a lot cars/trucks out there...just not our f-bodies

**fuel1999** · 07-25-2010, 11:01 AM

theres a few things to cause that if it has the correct amount of r134 check for a restriction by following the lines for frost forming sounds like to much pressure building the orfice should have also been changed with the compressor

**Cutlass** · 07-26-2010, 03:47 AM

Originally Posted by fuel1999

theres a few things to cause that if it has the correct amount of r134 check for a restriction by following the lines for frost forming sounds like to much pressure building the orfice should have also been changed with the compressor

Yep thats true...can't believe I didn't think of that! Good possibility the orfice tube is plugged up.
OP, have your shop do quick pressure check. That would confirm or deny that.

**clubberlang** · 07-26-2010, 11:20 AM

what are the chances it's the computer?

**Cutlass** · 07-26-2010, 05:09 PM

It is possible but not probable.

**MudStainKILLA** · 07-27-2010, 07:58 PM

if you need a/c parts let me know just pulled my complete system out

**clubberlang** · 07-28-2010, 08:08 AM

I have a new problem now besides the unresolved ac problem, the car is now wanting to run hot and i believe that it is because both fans aren't coming on.