TH400 issue
Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
Thanks jim, I did put a good brass screen TCI filter at the oem location. It also has a Perma-cool remote filter under the hood with SS braided lines and all AN fittings. When I finished installing the shift kit with new fluid, I also installed a Fram PH8 filter to replace the original Perma-cool filter. This would be the first time its ever had a fram oil filter on the Tranny cooling line. You think this could cause a restriction issue? Perm-cool lists it as an acceptable replacement though.. 
Governor piston -no. What should I look for? I have heard about the little plastic gear failing but figured since it shifted at 5000rpm the governor was working. I dont know- Not much experience with automatics.. Wish I had a 4 spd in it!
Governor piston -no. What should I look for? I have heard about the little plastic gear failing but figured since it shifted at 5000rpm the governor was working. I dont know- Not much experience with automatics.. Wish I had a 4 spd in it!
Also never had the solenoid connected at all for all those miles. Make sure the solenoid is not stuck.
How many miles on tranny???
Last time your symptoms happened to me, the seals were shot internally and a rebuild was in order.
Thread Starter
Racer
Joined: Jan 2007
Posts: 314
Likes: 0
From: Pittsfield, Ohio
I used a remote fram Ph8 on a tranny for over 150,000 miles with no problems. Must change it at least once a year or it will blow the lines.
Also never had the solenoid connected at all for all those miles. Make sure the solenoid is not stuck.
How many miles on tranny???
Last time your symptoms happened to me, the seals were shot internally and a rebuild was in order.
Also never had the solenoid connected at all for all those miles. Make sure the solenoid is not stuck.
How many miles on tranny???
Last time your symptoms happened to me, the seals were shot internally and a rebuild was in order.
Solenoid is not stuck. It seams to operate properly-
Thread Starter
Racer
Joined: Jan 2007
Posts: 314
Likes: 0
From: Pittsfield, Ohio
I'll pull the valve body today and clean good and start all over again.
Thread Starter
Racer
Joined: Jan 2007
Posts: 314
Likes: 0
From: Pittsfield, Ohio
Works Now
Went and picked up a TH400 manual earlier. Read it and found no
" ah-ha's". I found that I did put the cone filter in the right way and in the right tube the first time. Oh well.
I took it all a part again and cleaned it good. Pulled the governor and it was fine, pulled the modulator again it was fine, good vacuum from the manifold, etc.
Put it all back together, filled it up and took it for a 12 mile loop. Works fine now. Nice snappy shifts. Must have been a piece of dirt is my only guess..
Oh yeah, no one had the detent solenoid in stock so I just used the original one so it wasn't the culprit either.
On the road again....
" ah-ha's". I found that I did put the cone filter in the right way and in the right tube the first time. Oh well.
I took it all a part again and cleaned it good. Pulled the governor and it was fine, pulled the modulator again it was fine, good vacuum from the manifold, etc.
Put it all back together, filled it up and took it for a 12 mile loop. Works fine now. Nice snappy shifts. Must have been a piece of dirt is my only guess..
Oh yeah, no one had the detent solenoid in stock so I just used the original one so it wasn't the culprit either.
On the road again....
Burning Brakes
Joined: Jul 2001
Posts: 853
Likes: 0
From: Foxfield, Co
After working on my car one day, took it out for a drive and my tranny had all kinds of strange things going on--turned out I unknowingly had bumped the vacuum line off of the intake manifold that goes to the tranny. Once I hooked it back up all was fine. Its worth a look.
Greg
Greg
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Thread Starter
Racer
Joined: Jan 2007
Posts: 314
Likes: 0
From: Pittsfield, Ohio
After working on my car one day, took it out for a drive and my tranny had all kinds of strange things going on--turned out I unknowingly had bumped the vacuum line off of the intake manifold that goes to the tranny. Once I hooked it back up all was fine. Its worth a look.
Greg
Greg
I pulled the line off the modulator while it was running- Had real good suction.. Idunno.
Burning Brakes
Joined: May 2007
Posts: 945
Likes: 0
From: Ventura California
Thread Starter
Racer
Joined: Jan 2007
Posts: 314
Likes: 0
From: Pittsfield, Ohio
Yeah that too! I wasn't lazy this time! I went in the house and got the petroleum jelly this time for those ball bearings and gaskets. Maybe that was it. I read in the tranny manual it says to use it too.
The B&M instructions said jelly or grease... Wonder why they would say that?
Anyways- I'M IN THE TIRE CHIRPIN' CLUB now.
The B&M instructions said jelly or grease... Wonder why they would say that?
Anyways- I'M IN THE TIRE CHIRPIN' CLUB now.
Burning Brakes
Joined: May 2007
Posts: 945
Likes: 0
From: Ventura California
Yeah that too! I wasn't lazy this time! I went in the house and got the petroleum jelly this time for those ball bearings and gaskets. Maybe that was it. I read in the tranny manual it says to use it too.
The B&M instructions said jelly or grease... Wonder why they would say that?
Anyways- I'M IN THE TIRE CHIRPIN' CLUB now.
The B&M instructions said jelly or grease... Wonder why they would say that?
Anyways- I'M IN THE TIRE CHIRPIN' CLUB now.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
I just saw this thread and I was going to suggest a stick valve in the governor. But it sounds like you found the little bugger. If you have similar problems down the road, re-check the governor...make sure that the valve in the governor shaft move freely when you move the flyweights to full extended position [and back]. A scratched or slightly dinged valve can have an intermittant sticking problem and cause "late" shifting. Also make sure that the governor drive gear is in good shape and the retainer pin is tightly installed.
Thread Starter
Racer
Joined: Jan 2007
Posts: 314
Likes: 0
From: Pittsfield, Ohio
I just saw this thread and I was going to suggest a stick valve in the governor. But it sounds like you found the little bugger. If you have similar problems down the road, re-check the governor...make sure that the valve in the governor shaft move freely when you move the flyweights to full extended position [and back]. A scratched or slightly dinged valve can have an intermittant sticking problem and cause "late" shifting. Also make sure that the governor drive gear is in good shape and the retainer pin is tightly installed.
I think I'll replace that gov drive gear in the near future. Mine looked original so I'm sure it could go soon. Thats an easy $5 / 30 minute insurance policy too.
Last edited by 2armor; Sep 11, 2007 at 01:59 PM.
Thread Starter
Racer
Joined: Jan 2007
Posts: 314
Likes: 0
From: Pittsfield, Ohio
