Silverado weird sound

Not that familiar with this sound. But when you rev the engine, or you are taking off fast. The engine makes like a high pitch compression noise. Ive heard them in other vehicles but mine is louder. What do you think it is, or what to do about it?

Not that familiar with this sound. But when you rev the engine, or you are taking off fast. The engine makes like a high pitch compression noise. Ive heard them in other vehicles but mine is louder. What do you think it is, or what to do about it?


what engine/year ???
this could be the exhaust manifold bolts,,they are week and are known to break,rust ..

2000 5.3L....its coming from somewhere close to the top of the engine near the firewall....the noise kinda sounds like a faster higher pressured version...of when you check your tire pressure and some leaks out

2000 5.3L....its coming from somewhere close to the top of the engine near the firewall....the noise kinda sounds like a faster higher pressured version...of when you check your tire pressure and some leaks out

did you check the exhaust manifold bolts?

nope...i really dont know where they are either lol
Ive done alot to my truck but im still learning too

nope...i really dont know where they are either lol
Ive done alot to my truck but im still learning too

so you don't know what the exhaust manifold is ?
this is where the exhaust exits the engine,,it should look rusty,,with bolts that are rusted mounted on each side of the engine...get's hot quickly...

headers? lol

headers? lol


does this vehicle have the OEM exhaust, or some aftermarket equiptment...???

in any case this sounds like your problem..bring to an exhaust repair garage..

all i have is a cat-back with Flowmaster 40

all i have is a cat-back with Flowmaster 40

was it the headers leaking ?

What about the PCV valve, back of engine, near the firewall, on top of the drivers side valve cover. Is it in the hole correctly? Just a thought.