Drivetrain issues
08-20-2006, 08:24 AM
#1
TECH Regular
Thread Starter
Join Date: Nov 2001
Posts: 409
Likes: 0
Received 0 Likes
on
0 Posts
Drivetrain issues Couple of months ago I blew up my tranny so I replaced it with FLT level 5 tranny. However I reused the converter (PT4000) from the old trans in the new one. Since then I've been having the following issues
-Pulsating vibration at ~4000 rpm. Seems to happen in 3rd & 4th gears only.
-Converter does not unlock when I give it slight gas, instead it surges & kinda goes unlocked-locked-unlocked-locked...& so on. It unlocks successfully only when it down shifts 4-3 or 3-2, or when I hit the brakes.
I know the second problem could be tuning related, however I changed lots of parameters & triple checked everything via LS1-Edit, and was not able to solve the problem.
Does this sound like a tranny issue or a converter issue? Could I have a bad lock-up clutch?
-Pulsating vibration at ~4000 rpm. Seems to happen in 3rd & 4th gears only.
-Converter does not unlock when I give it slight gas, instead it surges & kinda goes unlocked-locked-unlocked-locked...& so on. It unlocks successfully only when it down shifts 4-3 or 3-2, or when I hit the brakes.
I know the second problem could be tuning related, however I changed lots of parameters & triple checked everything via LS1-Edit, and was not able to solve the problem.
Does this sound like a tranny issue or a converter issue? Could I have a bad lock-up clutch?
08-20-2006, 09:11 AM
#2
11 Second Club
iTrader: (27)
Join Date: May 2005
Location: Your girl's back door giving her the long stroke while you're at work
Posts: 6,801
Likes: 0
Received 3 Likes
on
3 Posts
Did you have the converter flushed before you put it in? If not then you probably had some trash in there from the old trans and it made its way into the new one.