ac not working in 04 buick rainier but it appears to have a full charge

Asked by gkilwien Jun 06, 2016 at 08:04 AM about the 2004 Buick Rainier CXL Plus RWD

Question type: Maintenance & Repair

3 Answers
42,415

Auto_Centric answered 8 years ago

what does the pressure gauge read at idle high side and low side?

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txbarney answered 8 years ago

You can bypass the compressor relay by pulling the relay and putting in a jumper wire.....this should get the system working so you can get pressure readings. There are high and low pressure switches built into the system and if they are bad or giving a bad reading the ECM will not turn on the relay to start the compressor.

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Jerrybell answered 6 years ago

It's could be over chargeed the conpresser won't kick on.could it being overcharged do that

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