4l80e transgo2 -rebuild slips
May 2, 2012 | 06:45 AM
#14
The trans should move regardless of the electronics. I'm going to throw this out there for what its worth. Your issue is in the over drive roller clutch or over run clutch. I'm going to guess that the late style with the small rollers and the blue/black cage was used. If this cage is not set properly in the over run drum you will have the same results as what you have going on here. Or also a sealing ring was cut on the stator when the pump was installed. If I were the builder I would most definitely want to go back through the unit to make sure all of the assemblies are correct. Also to make sure that the shift kit was installed properly.
Does this condition also happen in all shifter positions? Manual 1st, 2nd, D.....
Does this condition also happen in all shifter positions? Manual 1st, 2nd, D.....
No. Using the gear selector 1st/2nd/3rd all seem to be fine at this point but ,as stated,if shifted manually to 4th you must first achieve 3rd or it will act like you went into neutral. Thankfully the builder has convinced himself that it's inside the trany, so out it comes.
Based on the fact that you said it does not slip in the manual positions your issue is in the one way clutch as I said. Good luck getting it all sorted out and it sounds like your builder is headed in the correct direction.
May 4, 2012 | 04:24 PM
#15
Thread Starter
Teching In
Joined: Sep 2010
Posts: 48
Likes: 0
From: sacramento
Well, got my trany back in the car. You were right, a one way roller assembly (round plastic cage with metal rollers) was installed incorrectly. All gears work great ,Success!!! Well not exactly. Know I have a subtle noise that sounds like a marble rolling around a glass jar and Only while in a gear. Moving or not, doesn't seem to matter. Anyone care to take a stab. Appreciate it
May 5, 2012 | 12:34 AM
#16
Does it do it in gear in all ranges while sitting still? If you are sitting still I would suspect an issue with the converter, pump or flex plate. Keep in mind while stopped in gear the internals of the trans are not moving. Just the ones I have listed above.
May 6, 2012 | 11:14 PM
#17
Thread Starter
Teching In
Joined: Sep 2010
Posts: 48
Likes: 0
From: sacramento
Yes. All gears sitting still. We are going to put it on a lift to better isolate the noise. No other trans internals but pump moves while in gear sitting still? this noise was not their before pulling the trans the last time.
Thread
Thread Starter
Forum
Replies
Last Post
BROKE-aSS-BLAZER
GM Parts Classifieds
7
Oct 13, 2017 03:50 PM
Vortec350ss
Drag Racing
134
Jan 12, 2016 10:36 PM
jscherbs
GM Parts Classifieds
3
Sep 30, 2015 07:54 AM
