not rod knock but terrible noise

**pontiacgtp98** · 03-02-2012

Im looking for some insight on my problem with my 98 gtp. noise increases with rpm im thinking main bearings due to the fact that my flywheel or torque converter seems to be screwed up. car was accidently nuetral drop at about 3000rpms and then i had no gears available and now also have this knocking in my engine... my main questions are WHAT TO DO??? and is there any ways to know what the problem is without tearing apart the engine for a rebuild. id prefer to rebuild as opposed to junkyard swap due to the fact the top half has been redone with gaskets. i dont know if trans has issues pretty much wondering where should i start lol thank you any feedback is very helpful

**Fivefingerdeathpunch** · 03-02-2012

pull the dip stick, does it sparkle with metal shavings???

Doing a full rebuild will cost you more than a junkyard motor with all the machining that you have to get done.

**jteske88** · 03-02-2012

Well you prolly got more problems, but when it bought I has something goig on I traced it to pulsing injectors

**pontiacgtp98** · 03-02-2012

oil looks fine but the car has only moved 3 blocks and ran only couple times since issue started yet its knocking. u think id be better off getting a junkyard motor preffebly out of a old lady buick?

**pontiacgtp98** · 03-02-2012

what else could it be because ive heared rod knock and i dont know if thats my issue

i hope not but if my engine is knockin am i doomed. fyi its not supercharger thats new

**Tuner-Extraordinaire** · 03-02-2012

could be a bad balancer or flexplate.

**pontiacgtp98** · 03-06-2012

Originally Posted by Nixon

could be a bad balancer or flexplate.

if its my flexplate does this sound accurate. in drive i rev some and at some point the car begins moving and then once it did that i died and wont start back up it dims all power as if just starter cant turn it over anymore.. flexplate crossing fingers

**jteske88** · 03-02-2012

Take a screw driver and listening to see if it's the injectors?

**Fivefingerdeathpunch** · 03-02-2012

video please.

**pontiacgtp98** · 03-02-2012

i will get video asap

**ItHurtz** · 03-02-2012

if ur knockin u need a new engine. If ur engine is banging and when you hit the gas it gets worse and louder its rod knock. Leave it in park and floor it until it stops

**Tuner-Extraordinaire** · 03-02-2012

same procedure for tps relearn ftw

**pontiacgtp98** · 03-02-2012

flexplate sounds reasonable i dont have any gears and never had and engine issues before this happened.

Realy gas it till it stops ofcourse in park itll only go to 3800rpm or so

car was accidently nuetral dropped and then wouldnt move any more. then next day notice this engine noise which ofcourse can be any of the above issues

lovely trans shop said nothing came up on trans scan but i obvouisly have some issue.. they say engine bad trans bad lol hope not

**Fivefingerdeathpunch** · 03-02-2012

so no forward gears at all? Does it have R, does it move in 1?

I'd say something inside blew up, possible input shaft or bands.

**pontiacgtp98** · 03-03-2012

no reverse or 1

**pontiacgtp98** · 03-04-2012

heres my video

Gtp engine/ trans noise - YouTube

**pontiacgtp98** · 03-04-2012

Gtp engine/ trans noise - YouTube

**gtcoup** · 03-04-2012

Originally Posted by pontiacgtp98

Gtp engine/ trans noise - YouTube

sounds like it hurts :/ goodluck bro

**blueguy** · 03-04-2012

I merged your threads OP, you don't need multiple ones for the same issue.

Thanks.

**ItHurtz** · 03-04-2012

ur engine is done. Take another vid of you holding it bouncing it off the limiter until it stops.

Thread: not rod knock but terrible noise

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