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07-25-2005, 08:15 PM | #1 | |
AF Newbie
Join Date: Jul 2005
Location: auburndale, Florida
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AC Problem
I have a 1997 GMC Jimmy. A/C has been RECHARGED and added new freon. It still blows out warm air. What causes this? Could there be a bad switch or something causing it to go to the vents? Compressor kicks off & on allot. If so were could these sitches be loacted at on the Jimmy? Any help would be greatly appreciated. Thanks
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07-26-2005, 07:24 AM | #2 | |
AF Newbie
Join Date: Jul 2005
Location: Morgantown, Georgia
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Re: AC Problem
see thread "2000 Jimmy A/C Problem"
Defective low pressure switch caused our problem. A $10 item! I also learned that if the radiator contains the incorrect mixture of antifreeze or contains just plain water, the engine will run hot BUT the temp guage will not show that it is running hot (see owners manual). When engine is hot, the computer will not allow the A/C to come on. |
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07-28-2005, 11:09 PM | #3 | ||
AF -Advisor
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Location: Sudbury
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Re: AC Problem
Quote:
Check the system pressure with the AC on MAX and the fan on full blast. Also note, you don't just add refrigerant without knowing the system pressure. And remember you have to add oil too.
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1995 Factory Blazer Service Manual for sale, PM if interested. |
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08-02-2005, 08:32 PM | #4 | |
GM S-Series Mod
Join Date: Aug 2005
Location: Westminster, Maryland
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i recharged my system 2 times. each time after about a week the freeon leaked out. i used a freeon snifer to find a leak in the evaporator. if all the switches check out then do the sniffer test to see if you got a leak.
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