[V8] AC Failure

[Coleman, David]

I've posted twice recently about the same issue with no feedback.  I can engage the clutch by applying pressure to the clutch while it's running w/ the AC on (yes, the fan's a-running and the belts a-spinning, so I'm pretty careful).

I've examined the manual, but it doesn't cover the possiblity of servicing while on the car (and saving the R12).

Do the codes go away when you manually engage the clutch?

-DaveC.

> Turns out the relay wasn't the fix.  (Which is good because it is an
> expensive part!)  The culprit seems to be the clutch on the AC
> compressor; it tries to engage, but starts slipping.  I cut 
> my losses @
> $165 and still need to order a clutch and install it myself.
> 
> Any BTDT experience with replacing this puppy?  I am assuming 
> that I can
> leave the compressor in place and just R&R the clutch, right?
> 
> I am curious as to why I am still getting these codes:
> '09 - Coolant temp sensor G62 open circuit
> '16 - High pressure sensor - short circuit
> 
> Thanks in advance,
> 
> - Jeremy
> 
> -----Original Message-----
> From: v8-bounces+jward=mti-interactive.com at audifans.com
> [mailto:v8-bounces+jward=mti-interactive.com at audifans.com] On 
> Behalf Of
> Jeremy Ward
> Sent: Thursday, June 24, 2004 9:20 AM
> To: Scott Baumann / Progressive Technology Solutions; v8 at audifans.com
> Subject: RE: [V8] AC Failure
> 
> Funny you should mention AC...  Mine has been down for a while and I
> took it into the shop yesterday for a recharge; mine seemed to be
> trying, but just couldn't do it.
> 
> They ended up replacing 'the filter' (?) and said it was full of metal
> shavings.  Said it didn't take much R12, but they are waiting on a new
> AC clutch relay to arrive this morning (I am currently 
> sitting at a $300
> bill...)
> 
> You might check out Chris Miller's site:
> http://members.aol.com/c1j1miller/climate.html 
> 
> You can pull codes from the climate control unit ('90-'91 only) to see
> if there are any errors.  Hold down the Outside Temp and the 
> Off button.
> Mine was scrolling between 09 and 16 and the relay was clicking on and
> off.  Lets hope the new relay fixes it and my bill stays at $300.
> 
> Hope the link helps,
> 
> - Jeremy
> 
> -----Original Message-----
> From: v8-bounces at audifans.com 
> [mailto:v8-bounces at audifans.com] On Behalf
> Of Scott Baumann / Progressive Technology Solutions
> Sent: Thursday, June 24, 2004 8:58 AM
> To: v8 at audifans.com
> Subject: [V8] AC Failure
> 
> Hello to all.  After some 80K miles of hard travel in the 
> past 1.5 years
> with the old V8, she finally has come up with a failure (beyond normal
> maintenance, that is!) that needs to be addressed.  I parked 
> her in her
> stall for the night (run hard & put away wet?) with a fully functional
> AC system, as cold as I could ever ask it to be.  
>     The next morning, my wife took a trip into the Twin 
> Cities and back
> - pretty warm out - about 85 Deg F or so - and she came home 
> & remarked
> that the AC was not working.  Strange.  Took her out for a spin to see
> for myself.  Sure enough - the compressor is not willing to kick in.
> The downside on this system is that, when the kompressor is 
> kaput, there
> is no real fresh air source to the cabin that does not see a temp rise
> from theh engine/climate control system.  Makes for a warm drive!
>     I have done some limited research in the archives (all 6 months
> worth), without much success.  One thing I will try is to splice the
> relay conn's to see if the compressor kicks on (I believe 
> that bypasses
> the high/low press and high temp cutout switches).  If the compressor
> does indeed kick into service, I suspect that means that either I have
> experienced a bizarre leakage of R12, or one of the various 
> switches is
> shot.
>     Any BTDT's on trouble-shooting the V8 AC systems??
> 
> Thanks
> 
> Scott Baumann
> 
>     
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