2006 Chevy Colorado 6 cyl Two Wheel Drive Automatic 75000 miles
My truck started to have a rattle/vibration at idle. This happens for a one or two second interval at idle, stops for about 30 seconds and repeats. This only happens at idle either in or out of gear. Once I hit the gas the rattle/vibration stops. I replaced the belt, no fix. Then the tensioner, no fix. I opened the hood and listened and it sounds like something is loose. Looked around and everything is fine. I kinda think it is the alternator, since I can initiate the rattle/vibration by lowering the power windows. The RPM's at idle are around 650, which has always been normal. Then the rattle/vibration starts I can see a slight change in RPM's, usually less than 100. Thanks for any suggestions.
Monday, August 11th, 2008 AT 11:42 AM