I have a '99 blazer LS 4dr with 135k miles. When I turned on the A/C for the first time this year, it didn't work. I checked under the hood, and when the A/C was turned on (& engine running), the clutch on the front of the A/C pump would engage, spin for 1 or 2 seconds, then disengage. Does this sound like a relay/electrical problem or computer problem or????

Thanks for any info.

 

Probably low on freon charge, can't continue to cycle properly. should be able to have it checked at no cost.

 

Sounds like a good idea to me - I'll give it a shot. Thanks for the reply.