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SuperDave
SuperDave, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1491
Experience:  over 16 years experience
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I have a c1500 1988 silverado 4.3 eng and need some advice

Customer Question

i have a c1500 1988 silverado 4.3 eng and need some advice on my a/c retro fit
Submitted: 1 year ago.
Category: Chevy
Expert:  SuperDave replied 1 year ago.

The switch on the compressor is hi pressure cut off.The Low pressure cycling switch should be on top of the accumulator.

Expert:  SuperDave replied 1 year ago.

The Low pressure switch turns on the a/c clutch.

Expert:  SuperDave replied 1 year ago.

The Low pressure switch turns on the a/c clutch.

Customer: replied 1 year ago.
i see a cutoff switch a low pressure switch and a hi pressure switch they all look identical that goes in the top of the compressor
i dont know wht to buy i want to replace the one on the compressor
Customer: replied 1 year ago.
i guess it need a high pressure switch i never had try to fix ac before its all greek to me
Customer: replied 1 year ago.
i have a leak and need to find it i have the dye in a can and need to find it icannot get the compressor to click
Customer: replied 1 year ago.
ok thanks
Expert:  SuperDave replied 1 year ago.

You can use a jumper wire to bypass the low pressure switch to make the compressor come on.Disconnect the low pressure switch and put the jumper wire from one pin to the other on the connector.The fatter looking a/c line on the compressor is the low side,the smaller is the high side.

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