A/C unit

Asked by dgiorgia Jun 30, 2012 at 03:25 PM about the 2000 GMC Sierra 1500 SL Standard Cab SB

Question type: Maintenance & Repair

A/C unit will kick on-off every 2seconds without cooling the truck, have checked the refrigerant and
appears full, suggestions?

3 Answers
1,475

Chris answered 12 years ago

by kickin on im assuming ur talkin about the clutch on the compressor, its supposed to do that even if ur truck had the a/c turned off to circulate the refridgerent, u could have a leak in the system thats the usual cause of "not cooling" try a quick seal kit and a couple cans of recharge, if that doesnt solve the issue, it will require further diag as to y the system is not operating

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Josepi answered 12 years ago

i would drain the system and then shot dye in the system and refill it and wait a week and get a black light and look and see if you have a leak

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