Chevy Silverado 1500 Strange Sounds From AC Unit

Doug’s question: “I have a 94 Chevy 1500 pickup. not too long ago, i started hearing a “thump thump thump” noise when I start the vehicle, and shut it off. it lasts for about 10 to 15 seconds, it comes from under the passenger side of the dashboard. i do know it has to do […]