2000 GMC Sierra "exhaust loud cold" Questions

...loud lots of fumes and won't stay 89 accord loud lots of fumes and won't stay running in cold It sounds as if you might have a vacuum leak (fumes and running cold) and an exhaust leak (

...exhaust gaskets and the doughnuts and yet it still makes a loud puff puff sound With the engine cold, start and have your helper hold a bunched up rag over the exhaust pipe. You will spot the leak in ...

loud rattling noise when cold in reverse or drive Loud rattling noise whn engine coldin reverse or drive .run perfdect when warm Check engine mount or exhaust mount/damage

...exhaust system to vibrate hard enough to rattle in the car with loud sounds when hitting humps in the rd. ? at 18 years old my guess would be its possible. get under it when its cold and give it a ...

...loud to take upon cold start up almost like the car has lost its exhaust system, but slowly quiets down as car reaches running temperature. check for broken exhaust pipe or muffler could have hole ...

...exhaust, something about emission. its normal to be high pitched. once on my car it was way loud, i looked and the hose had disconnected. either way its normal if its not super loud. but if its ...

...loud enough to think it was terminal first time i heard it.oil covering bottom of motor. can't tell were its coming from. 03 mitsubihi magna tj 3.5 v6. when running no power problem there is some ...

...it warms up the loud noise goes away and it sounds normal. Until I start it when its cold. Then its loud again. that is the exhaust pipe gasket . it is on the front pipe going to the exhaust ...

...when engine is cold and getting worse it ticks loudly, i've checked exhaust gaskets and they are ok. what could be the problem? It sounds like a lifter is bleeding off. YOU COULD TRY ADJUSTING

...engine won't start in cold weather . Smoke comes out the exhaust until engine warms up. Runs rough & loud until driven at least 5 miles check your glow plug relay! located on the right side ...