Hollsc
Registered User
Just recently when I am idling the truck shakes and makes a fairly loud rattling. If you give it a quick hit on the gas it usually will return to idling normal but sometimes it take a few times to do that. Is this an idler arm pulley or what should I check first? Truck has 118,000 miles and have done nothing to it so far except change oil. Any suggestions of what to check out first are appreciated.