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2007 Dodge Ram 1500 Question: A/C Compressor Kicks Out at Idle Speed



mtaggie03, 5.7L V8 HEMI, Houston, TX, June 08, 2010, 12:11

I have a 2007 Dodge Ram 1500 w/ a 5.7L HEMI engine. The truck has been great up until 100,000 miles which happened last month. The biggest problem is that the A/C doesn't work when I am parked or at idle speed. It works fine when I am moving above 20mph. I live in Houston, Tx where it normally is 90 degrees with 100% humidity so this is a major problem! Any ideas before I take it into the shop and spend $1,000.


Matt Taylor

2 Answers
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  • Medium-star Best Answer
    June 08, 2010, 12:24

    did you get an estimate already? for what?? sounds like the cooling fans for the condenser.


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    mtaggie03, June 08, 2010, 12:51

    No, I haven't got an estimate yet. I tried messing with the wiring going into the compressor and that seemed to fix it for a few days. I also tried to add freon yesterday but that didn't work. The condenser fan and compressor both kickout when idling but work fine above 20mph?

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  • Answer #2

    etdrag from ET Motorsports Complete Auto Care, August 16, 2010, 18:04

    Sounds like the relay or the ECM is not controlling the fan correctly or possibly a problem with the one of pressure switches.

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