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SOURCE: ac not cooling properly
THE 1ST THING U DO IS VERIFY THE SYSTEM IS FULLY CHARGED, WHAT IS THE LOW SIDE LINE PRESSURE? SHOULD BE AROUND 28 PSI WHEN COMPRESSOR IS ENGAGED.
SOURCE: 3.1 L Grand Prix-cooling fan won't kick on, new
probably not a relay,check the coolant temp sensor to make sue its reading ok,if its misreading it will not tell the computer to turn the fan on
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SOURCE: cooling fan not functioning properly. running 200
if this is an electric fan,first test your coolant temp sensor located in the block or possibly the radiator,then make sure theres not an obstruction in the system itself and have the system flushed out and the radiator boiled out(depending on radiator material)and checked,if its a newer model vette it may have a double-cross flow system and they plug up easier than the standard cross-flow system
SOURCE: DId anyone ever find out what "ENGINE HOT/AC OFF"
The only way to know for sure is to use a scanner to see what the PCM is seeing. You may have a bad sensor, a inaccurate gauge or possible a PCM issue.
Do you really want to guess at this point ?? because even with a guess you will need to verify it with the proper tools.
SOURCE: Ac/temp will not change from heat to a/c
what will cause my 2000 bravada not to start but will still try to turn over
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