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GMC Jimmy Climate Control Problems

82 messages,  Last post on Oct 11, 2009 at 6:56 AM

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What is this discussion about? GMC Jimmy, Heating / Cooling, SUV

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#33 of 82 Re: 95 GMC Jimmy Air Conditioning Problem [als95gmc] by repairdog Jun 01, 2007 (1:43 am)
Replying to: als95gmc (May 31, 2007 7:20 pm) Possible faulty connector or loose pins in one, low pressure or pressure switch bad, compressor leaked so low pressure. Need to have test gauges to find so go to an AC shop and most do system test for free or low price before giving you an estimate. Replies to this message: als95gmc (Jun 02, 2007 3:09 pm)
#34 of 82 Re: 95 GMC Jimmy Air Conditioning Problem [repairdog] by als95gmc Jun 02, 2007 (3:09 pm)
Replying to: repairdog (Jun 01, 2007 1:43 am) Will do. Thanks.
#35 of 82 Blazers air prob by 20blazer00 Jun 11, 2007 (11:25 am)
I have a 2000 Blazer Ls.  For some reason the a/c blows cold and then warm, it is constantly switching back and forth. I told the service manager about it today while it was getting a window switch replaced. I asked if if just needed recharged.  He said " No, it wouldnt blow cold at all if it was low on freon. It must be a switch going out. " What do yall think? If it is a switch, can it be replced by yourself or have to have a shop do it? And what and where is this switch?                             Thanks Replies to this message: repairdog (Jun 11, 2007 1:43 pm)
#36 of 82 Re: Blazers air prob [20blazer00] by repairdog Jun 11, 2007 (1:43 pm)
Replying to: 20blazer00 (Jun 11, 2007 11:25 am) If it has auto climate system (select a temp on the dial in degrees and it maintains it) you have an additional electric blend motor on the heater/AC box and they have a plastic gear that goes so cycles hot/cold as it can't figure out where it is. On top of the heater box and let the dealer do it. Motor about $200 plus labor. If a switch it could have an intermittent short or connection on the compressor or the pressure switch - AC guy can find it .
#37 of 82 2001 chevy blazer over heating by sbalsano Jun 11, 2007 (2:34 pm)
back in march the dealer repaired coolant leak from intake,replacing lower manifold and gasket. they also performed complete cooling system flush, 10 days later had to have it towed back because it started to blow hot from the a/c and temp gauge reading over heat.the dealer said i blew upper rad. hose,they replaced that. 6 weeks later same problem, this time i let it rest about 4 hours checked for leaks, it cooled and drove fine. i took it to another gm dealer, they could not find a thing wrong, they did pressure tests found no leaks, changed the thermostat just in case. now 10 days later same problem, i never had this before the first dealer visit. any ideas? Replies to this message: repairdog (Jun 12, 2007 2:36 am)
#38 of 82 Re: 2001 chevy blazer over heating [sbalsano] by repairdog Jun 12, 2007 (2:36 am)
Replying to: sbalsano (Jun 11, 2007 2:34 pm) Same answer as to your other dup post.
#39 of 82 Re: 99 GMC Jimmy A/C blowing warm [repairdog] by stupidgts Jun 19, 2007 (1:31 pm)
Replying to: repairdog (Apr 01, 2007 5:49 am) Anyone have any suggestions as to where I could find a new compressor for a decent price? I think mine is about to kick the bucket. Air only blows COOL when RPM's are raised to around 2500. Also, there is a lot of rattling when the clutch engages. Thanks for any advise! Replies to this message: repairdog (Jun 20, 2007 2:20 am)
#40 of 82 Re: 99 GMC Jimmy A/C blowing warm [stupidgts] by repairdog Jun 20, 2007 (2:20 am)
Replying to: stupidgts (Jun 19, 2007 1:31 pm) Most auto stores or online at like gmpartsdirect or rockauto but unless you have al the equipment to evac and test the system plus change the dryer it will probably get contamimated. I let the AC shop do all mine - yes but $700 range.
#41 of 82 Checking the A/C Compressor Relay by bmath72 Jul 08, 2007 (10:03 pm)
Is there a way to check the A/C Compressor Relay to see if it is any good? How do I check the connectors to make sure power is getting through to the components? I took my 95 Jimmy to the shop to get the A/C checked out, and they told me it still had 30%. But they wanted to charge me $85hr to troubleshoot the problem. I want to do everything I can myself before I take it in and pay the big bucks.
#42 of 82 GMC Jimmy: A/C Problems by rpducros2 Jul 30, 2007 (7:54 pm)

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