I'd have the motor mounts checked. I'd also check to be sure that the trans-axel to engine bolts are all present and tight. FriPilot
Maybe you have a miss in your engine?
If a Lincoln LS V8 is making a engine noise when it is shifted into drive or reverse, it could indicate a seized gear in the transmission. It could also indicate a low transmission fluid warning.
If you aren't moving and it is making the noise, it may be the transmission or engine. if you are moving and it makes it, it could be a joint or a worn disc brake. If you aren't moving it is definitely not a joint.
engine problems not trans.
NO. A knocking noise in the engine is a problem in the engine.
It depends on what is making the noise.
Your transmission fluid might be low.
Loose sub frame mounts, broken motor mount. engine misfire. broken transmission mount.
check your wheel bearing
There could be numerous reasons why a Suburban is making engine noise at start up. It could be anything from a blown gasket to a spark plug. A mechanic will be able to find out the cause of the noise.
TOO LOW OF OCTANE.TRY 89 IF STILL RATTLES GO TO 91 OR 93 OCTANE. U WILL DAMAGE YOUR ENGINE WITH TOO LOW OCTANE.
no,if it is normal functional sound.if it is grinding or making some other kind of noise then there is definitely an issue.