Last week I took my 2000 corolla (95k miles) in for major repairs.
The following parts were replaced:
Gas tank, seal, hose
Left front wheel bearing
Valve cover
Spark plugs
both front struts
sway bar links and bushings
Now when I accelerate (1500-2800rpm), the engine is really loud. It’s like the exhaust is muffled (sounds like a jet engine). It only happens when accelerating 1500-2800rpm. It sounds like it’s coming from the rear (haven’t pin pointed it yet).
I was thinking that it’s the gas tank “covering” the exhaust pipe/system. Any suggestions on what it could be?
They probably disconnected the resonator pipe all the way to the tail pipe.(cat back)when they replaced your gas tank. Temporarily plug the exhaust tip with a rag and look under the car for any sign of exhaust leak…it will be obvious. You need to fix an exhaust leak ASAP.
You understood correctly and no, it won’t kill the engine if you plug the tailpipe for a minute. A hissing sound and smoke escaping from the pipe is what you are looking for. Since the noise is coming from the back,check the muffler for holes and the connection between the muffler and resonator pipe(gasket). Do you smell anything inside the cabin? My 99 Corolla is exacly like yours.
The red arrows are the most common leak points on the Corolla
