I keep getting alot of diffrent answers for whats wrong. It knocks all the time intell you really rev it up. I was reving it up to get it to go in reverse. I am low on tranny fluied. Anyways, the motor runs strong and smooth but for that knock! So I figured I would post a video of it while I but it back into the driveway. So let me know what you guys think it is. Adam :-)

 

its a rod hammering, unless something is loose (e.g. altenator) and its tapping against something, but sounds like a bad rod bearing to me, please don't rev it up anymore, thats painful to even hear

 

when was the last time you checked your TC bolts?

 

definately doesnt sound well....

Rod would have been my guess...

 

see i dont think it would be a rod as it was to slow at idle and exactly the same

 

I only reved it up to get it to back up. I don't mean to do this. lol. Everything else is tight that I know of. But when the motor is running you can feel the tapping when your hand it on the intake. Adam :-)

Checked them 2 weeks ago and all are tight. Adam :-)

It just runs to damn good I think to be a rod. Wouldn't the motor run a little ruff or somthing. Adam :-)

 

did you ever find out what was wrong with this.....this is the exact same sound my 88 iroc is making and you can feel it when you put your hand on the intake..... wat was this?