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Sounds like a flexplate noise, if so pulling Eng/Trans

Stoenr

Stoenr

New member
Ok my sons car 2000 GTP 150k Sounds like the flexplate might be making some horrible noises. Just based on what I seen and heard from it. And comparing to others around here and on the tube. Ill post a couple vids he took below.

He would like to attempt to pull this from the top, motor and trans in one shot since this is a home project, no lift, and he would like to replace some gaskets on it at the same time. I think main seal and timing cover are leaking? common?


Ive seen some trans removal post, but looking for hints, tips, write ups, what to have on hand, and suggested replacing at that time.

This is on a low budget, no pulling of heads, new cams upgrading going to be happening. Just trying to fix whats wrong.

Also in doing this, I am pretty sure we are throwing the 8.4 hours of labor all data shows for replacement, lol

Thanks guys!


 


Might be able to tighten the flex plate bolts, mine loosened up, and tightening them up fixed it. I plan on dropping the trans out the bottom.
 


you can pull either or, one has to come out, tranny is likely easier to drop then a engine removal.

but if you got oil leaks this is the time to re gasket the engine.
 
bah, engine out top> drop subframe anyday! At that point 2 bolts more and the motor can come out.
 
SgtMarshal said:
Might be able to tighten the flex plate bolts, mine loosened up, and tightening them up fixed it. I plan on dropping the trans out the bottom.
Click to expand...

I hear you cant really get to them when its all together, not enough room through the inspection hole? (I have not been under this car to verify)


ItHurtz said:
bah, engine out top> drop subframe anyday! At that point 2 bolts more and the motor can come out.
Click to expand...

Can we come up there and get some pro help! lol.


I dont have the best selection of tools is one thing thats gonna suck.
 
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Here in the Rust Belt we have this thing called rust that likes to f*** you by ripping apart the subframe Bolt cages and letting the nuts pain inside the body until you cut a hole in your floor to try to fix it or through the engine compartment side which means you're also pulling the engine.
then there's that whole pesky thing we're pretty much every gasket on the engine needs to be replaced on almost all cars over 75,000 miles...where's the transmission ....maybe the pan gasket leaks.
 
lol I dont think you want to work on a crushed asphalt driveway, but I do have every tool needed and a engine lift :p

You dont need much tools really, 10, 13, 15mm? Nothing to it, unbolt torque converter from flex plate through the inspection hole, unbolt trans from block, few misc things and boop hello engine.
 


That too, you could also try and separate trans from block in the bay with the tc unbolted and try to see if the flex is broken before yanking it out
 
After the torque converter is unbolted and pushed back you will be able to flex the flex plate with a pry bar and you should be able to see the broken sections near the windowd holes...from the bottom
 
Turbocharged400sbc said:
After the torque converter is unbolted and pushed back you will be able to flex the flex plate with a pry bar and you should be able to see the broken sections near the windowd holes...from the bottom
Click to expand...

Cant you also start it up with the TC unbolted, and if it is the flexplate, the noise should go away?
 


Stoenr said:
I hear you cant really get to them when its all together, not enough room through the inspection hole? (I have not been under this car to verify)

you can get to them good enough to tighten them. I put a built transmission in the Grand Prix about 3 years ago, and when I did, I used an L36 (n/a) torque converter, which has a different bolt pattern of the L67 (sc), so to make it work, we bored out the holes in the flex plate. well, several years later, the holes elongated more, the bolts loosened up, and upon inspection, we were able to tighten the bolts. I've been going easy on the car since then, and it isn't my daily driver, so at some point, I'm thinking I will drop the transmission and replace the plate with a better one.
Click to expand...
 
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