very common in all trannys 
A4 Tranny slipping?
Thread Starter
Racer
Joined: Feb 2004
Posts: 305
Likes: 0
From: Williston ND
A4 Tranny slipping?
Ive searched and searched and all I come up with is get it rebuilt.
Tranny has 43k miles on it. It started slipping while cruising on the highway with absolutely no prior signs of trouble.
I pulled over a mile later and trailered it home, was hoping something in the tune messed up. I returned it to stock (diablo predator) and still does it, reflashed the custom tune it and still does it.
Basically it doesnt want to shift out of 2nd and into 3rd. It will but takes a little while, then to accelerate you have to kick it down a gear or it just free revs.
I checked the fluid and its full...actually leaked a half a quart out when I pulled the fill plug (tried in park and neutral and it still was spilling out). The fluid is a nice red, doesnt smell or look burnt and no signs of metal shavings.
Any ideas? Torque convertor? A solenoid/valve sticking?
Tranny has 43k miles on it. It started slipping while cruising on the highway with absolutely no prior signs of trouble.
I pulled over a mile later and trailered it home, was hoping something in the tune messed up. I returned it to stock (diablo predator) and still does it, reflashed the custom tune it and still does it.
Basically it doesnt want to shift out of 2nd and into 3rd. It will but takes a little while, then to accelerate you have to kick it down a gear or it just free revs.
I checked the fluid and its full...actually leaked a half a quart out when I pulled the fill plug (tried in park and neutral and it still was spilling out). The fluid is a nice red, doesnt smell or look burnt and no signs of metal shavings.
Any ideas? Torque convertor? A solenoid/valve sticking?
Racer
Joined: Jul 2006
Posts: 401
Likes: 0
From: Big Bear, CA
If you're tired of hearing "time for a rebuild" then I would try replacing the shift solenoids. Otherwise you are looking at a rebuild.
I have had shift solenoids fail w/o throwing a SES light so give that a shot.
I have had shift solenoids fail w/o throwing a SES light so give that a shot.
Le Mans Master
Joined: Dec 2006
Posts: 7,251
Likes: 16
From: Phoenix Arizona
Burning Brakes
Joined: Feb 2005
Posts: 752
Likes: 1
From: Tulsa OK
"The engine must be running when the transmission fluid fill plug is removed, or excessive fluid loss will occur. Since the actual fluid level is unknown, stand clear when removing the fill plug. Have a container ready to capture any lost fluid. Do not turn the engine off with the fill plug removed, as you can be injured by hot transmission fluid being expelled out of the oil fill opening."
Here is the whole procedure from RPM Transmissions.
http://rpmtransmissions.com/files/c5fillprocedure.pdf
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Thread Starter
Racer
Joined: Feb 2004
Posts: 305
Likes: 0
From: Williston ND
Did you check the fluid with the tranny warm and the car running? It should not have been that over-filled. You are probably low by 1/2 quart now if the check was not done correctly.
"The engine must be running when the transmission fluid fill plug is removed, or excessive fluid loss will occur. Since the actual fluid level is unknown, stand clear when removing the fill plug. Have a container ready to capture any lost fluid. Do not turn the engine off with the fill plug removed, as you can be injured by hot transmission fluid being expelled out of the oil fill opening."
Here is the whole procedure from RPM Transmissions.
http://rpmtransmissions.com/files/c5fillprocedure.pdf
"The engine must be running when the transmission fluid fill plug is removed, or excessive fluid loss will occur. Since the actual fluid level is unknown, stand clear when removing the fill plug. Have a container ready to capture any lost fluid. Do not turn the engine off with the fill plug removed, as you can be injured by hot transmission fluid being expelled out of the oil fill opening."
Here is the whole procedure from RPM Transmissions.
http://rpmtransmissions.com/files/c5fillprocedure.pdf
Burning Brakes
Joined: Feb 2005
Posts: 752
Likes: 1
From: Tulsa OK
Whenever I check mine it doesn't pour out of the hole like that. I checked it once after a cooler install and it took about 8 - 10 ounces to top it off. I kept adding fluid until it started to drain back out of the hole then stopped. Let it drain a minute or so and then put the plug back in.
Sounds like yours was over filled at some point by someone but I don't know what kind of damage an over fill would cause.
Maybe some on the forum could chime in.
Sounds like yours was over filled at some point by someone but I don't know what kind of damage an over fill would cause.
Maybe some on the forum could chime in.
