Can a AC compressor cause pcu to go bad

Tiny
CMONSTER
  • MEMBER
  • 2004 PONTIAC GRAND AM
  • 100,000 MILES
I had my car in the shop a year ago because it wouldn't start. Come to find out the pcu was bad. They told me that the air compressor was the cause of it. I didn't have the money at the time to pay for that to. It didn't sound right anyways. They left it unplugged and said that would work
Do you
have the same problem?
Yes
No
Wednesday, July 11th, 2012 AT 4:54 PM

12 Replies

Tiny
DOCFIXIT
  • EXPERT
NO total BS
Was this
answer
helpful?
Yes
No
Wednesday, July 11th, 2012 AT 4:57 PM
Tiny
CMONSTER
  • MEMBER
So I can plug it back in and everything will be fine? I just don't want to have to buy another
Was this
answer
helpful?
Yes
No
Thursday, July 12th, 2012 AT 5:04 PM
Tiny
DOCFIXIT
  • EXPERT
AC compressor is controled by a relay no direct connection to PCM. Where they saying comp locked up? AC working before no start? No start mean it cranked but would not run?
Was this
answer
helpful?
Yes
No
Thursday, July 12th, 2012 AT 5:16 PM
Tiny
CMONSTER
  • MEMBER
It worked great before the no start. Yes it would crank all day and not start. They just said the comp was what caused the pcm to go bad
Was this
answer
helpful?
Yes
No
Thursday, July 12th, 2012 AT 6:10 PM
Tiny
DOCFIXIT
  • EXPERT
Story sounds fishy did check engine light come on? Security light? PCM rarely failes suspect fuel pump or cam or crank sensor was cause. May wany a second opinion not being able to see vehicle hard to say if all will be fine if plug Comp
Was this
answer
helpful?
Yes
No
Thursday, July 12th, 2012 AT 6:15 PM
Tiny
CMONSTER
  • MEMBER
Pcm and crank postion sensor was changed and works great now. I had no lights. Would run great before it was replaced if I disconnected battery for a few mins
Was this
answer
helpful?
Yes
No
Thursday, July 12th, 2012 AT 6:20 PM
Tiny
DOCFIXIT
  • EXPERT
Suspect crank sensor was fault the AC story makes NO sence and could not cause PCM to fail. This your regular shop?
Was this
answer
helpful?
Yes
No
Thursday, July 12th, 2012 AT 6:26 PM
Tiny
CMONSTER
  • MEMBER
It was a place that was recommended to me. I had just moved and I do a lot of my own work on my cars. Just don't know anything with computers
Was this
answer
helpful?
Yes
No
Thursday, July 12th, 2012 AT 6:28 PM
Tiny
DOCFIXIT
  • EXPERT
So going to plug it in?
Was this
answer
helpful?
Yes
No
Thursday, July 12th, 2012 AT 8:03 PM
Tiny
CMONSTER
  • MEMBER
Would you if you were me?
Was this
answer
helpful?
Yes
No
Thursday, July 12th, 2012 AT 10:46 PM
Tiny
CMONSTER
  • MEMBER
Would you do it if u were me
Was this
answer
helpful?
Yes
No
Thursday, July 12th, 2012 AT 10:56 PM
Tiny
DOCFIXIT
  • EXPERT
Yes
Was this
answer
helpful?
Yes
No
Friday, July 13th, 2012 AT 2:31 PM

Please login or register to post a reply.

Recommended Guides