Question about Buick LaCrosse
A/c clutch doesn't engage.have checked fuse,swapped relays,which wire is high pressure and can i jump across this to see if it will work.thanks
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Posted on Jan 02, 2017
no this is a high side cutt out for compressor,,,,low side pressure switch is what ur looking for look on dryer it should be ther jump them 2 wires,if it kicks on add freon 85 on low side not running is about out but if the ac does work and gets cold plug sensor back up and if it doesnt work,unscrew switch and go blow it out with a air hose (compressed air)and tap it around /put it back and try it /if it doesnt fix it buy a new switch
Posted on Jun 29, 2009
the control unit is no good.i had a similar situation with a 98 tracker,and installed a switch to give it a ground for the compressor relay that comes from the a/c computer module.
it works good and goes on and off with the a/c switch.
Posted on Jul 18, 2009
The air gap may be too wide between the clutch disc and plate. It usually happens from wear. You can test this possibility by engaging the clutch electrically as you have done and then push on the disc slightly with the handle of a hammer or screwdriver. Be careful not to get your hand or fingers too close while the engine is running. Basically you are helping the magnetic field pull the disc in. I hope this helps.
Posted on Aug 19, 2009
take the pressure switch connector off and jump connector- if clutch engauges you either have bad low pressure switch or are low on freon.
Posted on Aug 25, 2009
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