My Oldsmobile Bravada currently started to make a rattling noise from the engine. What is it?

It seems to be only when I am stopped at a red light or basically idling. Everything else seems to be working fine. 2000 Oldsmobile Bravada. I get the oil changed every 3,000 miles.|||if it is a tick, could be a lifter, not real serious if just one ticking


if it is a knock, would probably be from a rod, could be trouble


very hard to answer without listening. most shops would not


charge you just to listen and make a call, altho they would


probably want to run some tests.|||Make sure the exhaust is not hitting the frame and body of the car and that no heat shields are loose.


Check for relevant service bulletin titles:





http://www.edmunds.com/maintenance/Maint鈥?/a>





Similar complaints from other owners of your car model:


http://www.mycarstats.com





http://www-odi.nhtsa.dot.gov/cars/proble鈥?/a>|||It could be any number of things. Have a good mechanic listen to it. Hopefully it's nothing serious.