Question about Buick LaCrosse
Posted by Anonymous on
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Posted on Jan 02, 2017
Does the compressor run steady, cycle on and off continually or even come on at all? If cycles on-off then attach charge manifold/gauge set and bring freon up to proper level. If does not come on at all, then start engine, turn a/c on, remove two-wire plug from low pressure cut-out switch mounted on accumulator. Jumper the wires at plug and see if compressor comes on. If so, bring freon up to proper level.
If charge level was low then check for system leak after system charge with an electronic leak detector if available.
If compressor runs but doesn't cool vehicle then with engine running and a/c on feel (carefully) the lines. High side line should be hot (be careful) and low side line should be cold. If these are both true then it's possible non-cooling condition is due to air temp diverter door not operating or heater valve not shutting off (if so equipped). If low side not cold it could be a plugged orifice tube. If high side not hot it could be bad rings on compressor. Both conditions can be diagnosed with a/c manifold gauge set by noting the pressures.
For safety... if not familiar with differences between hi and low side components or with charge equipment then please take vehicle to qualified person for service.
Posted on Jun 22, 2009
In the newer Chevy Cobalts the trunk release button is usually located to the left of the steering wheel instead of the glove box.-----------------------------------------------------------------------------
Car cable & OBD Connector
Posted on Dec 07, 2012
First check the radiator and make sure it is full....If not fill
check your hoses that go to the heater core to see if they are leaking....Your heater core might be bad which is most likely the case.
Posted on Jan 03, 2013
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