Close
QUESTIONS

RepairPal is your advocate for car care advice and guidance

Q: engine makes squeaking nosie under the hood. its a 4.3 ltr on 2004 GMC Sierra 1500

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
have replace the following parts already, serp-belt, belt tensioner assy, idler pully, and alternator and it still makes alot of squeaking noise when on higher rpm, more so when the AC is on. what could be a possible problem?
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
Take the belt back off and see if the noise is still there when start the engine. I found a pesky water pump front bearing noise when I did this on a vehicle. You can turn the individual components by hand and see what you feel or hear.
Didn't find what you were looking for?