Tranmission not upshifting
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Registered User
Joined: Jul 2003
Posts: 616
From: Cumberland Co, NC
Tranmission not upshifting
throwing this up for someone:
I'm having a problem with my car. When I get up to around 80 (WOT), it'll start bouncing off red-line, and won't shift until I ease off the gas, and get back on it. I just recently took it in, and had the injectors cleaned, transmission flush, radiator flush, blahblah.. All the 70-75,000 mile crap, hoping that would fix it, but it didn't..
I beat on the car quite a bit, but nothing all that serious.. So, any help would be appreciated.
oh yeah, it's a 1998 A4 T/A
I beat on the car quite a bit, but nothing all that serious.. So, any help would be appreciated.
oh yeah, it's a 1998 A4 T/A
Registered User
Joined: Jan 2002
Posts: 5,308
From: Oshawa - Home of the 5th-gen
Hopefully we hear from someone with some (bad) A4 experience, but my guess is that's the beginning-of-the-end of that transmission
. From what I've read, 3rd and 4th gear go out of them fairly regularly
.
. From what I've read, 3rd and 4th gear go out of them fairly regularly.
Registered User
Joined: Dec 1999
Posts: 219
From: Guatemala, Central America
I'm having the exact same problem with my 2nd to 3rd gear shift(around 70mph) at WOT... tranny was just rebuilt and it works perfectly except at that point I get some kind of weird hesitation (like hitting a rev limiter but slower) 
Registered User
Joined: May 2001
Posts: 561
From: Dallas, Tx.
My car has this problem as well. I have read some post though about possibley a bad pcm or bad tps, anyone think that could be true? First, you have to find out if the PCM is sending out the command for it to shift the 2-3 under WOT, if not, i guess its a bad PCM, if it does, then you go to step two etc.....
I am trying to figure out my 2-3 under WOT as well as many others. If anyone knows of other ways to figure this out, please
get with me on it.
Thanks
-Mike
I am trying to figure out my 2-3 under WOT as well as many others. If anyone knows of other ways to figure this out, please
get with me on it.
Thanks
-Mike
Registered User
Joined: Mar 2002
Posts: 28
From: Toronto, Ontario, Canada
My PCM was replaced about a year ago and was reprogrammed by PCMforless....I really doubt that the problem is related to the PCM, I'm starting to think that it is just a defect with the tranny.
Registered User
Joined: Oct 2002
Posts: 966
From: Chicago
Your transmission is gone. I broke my transmission twice before I got my high performance rebuild. Your bands and clutch packs are gone. If your on a budget your better off buying a used transmission in the for sale section. If you have some money get it built right so it doesnt break on you anymore. Or get a stronger tranny like the th350 or 400.
Registered User
Joined: Dec 1999
Posts: 219
From: Guatemala, Central America
Originally posted by Black01_Z
Your transmission is gone. I broke my transmission twice before I got my high performance rebuild. Your bands and clutch packs are gone. If your on a budget your better off buying a used transmission in the for sale section. If you have some money get it built right so it doesnt break on you anymore. Or get a stronger tranny like the th350 or 400.
Your transmission is gone. I broke my transmission twice before I got my high performance rebuild. Your bands and clutch packs are gone. If your on a budget your better off buying a used transmission in the for sale section. If you have some money get it built right so it doesnt break on you anymore. Or get a stronger tranny like the th350 or 400.
Registered User
Joined: Oct 2002
Posts: 966
From: Chicago
Originally posted by Drowned
Did you even read the thread...? Most of us have recentrly rebuilt trannies...
Did you even read the thread...? Most of us have recentrly rebuilt trannies...
Registered User
Joined: Apr 2001
Posts: 716
From: Calimesa, California. US
If the transmission shifts ok up to about 3/4 throttle, then you are talking about a "oil volume" problem. Most 4L60E's have a "too small" a 3rd gear feed hole in the valve body plate. (1) You can open up the feed hole and put in a larger boost valve, or (2) Go to a "modified" Trans-Go Performance Shift kit. Do you already have the Corvette style servo?, if not this should be done first as this is the best way of starting to address this (2-3 WOT shift) problem.
Registered User
Joined: Mar 2002
Posts: 28
From: Toronto, Ontario, Canada
Finally, someone has been able to shed some new light on this issue! I don't know what a Corvette style servo is, so I'm guessing I don't have one. Can someone help me out here and tell me how/where to get one?
Registered User
Joined: Apr 2001
Posts: 716
From: Calimesa, California. US
Go to http://www.pro-built.net/index.cfm?f...&productid=112 for the Corvette servo, or try http://www.pro-built.net/index.cfm?f...&productid=111 for the Corvette servo & both boost valves. Let me know if I can be of help?
Registered User
Joined: Dec 1999
Posts: 219
From: Guatemala, Central America
Originally posted by Pro Built Automatics
Go to http://www.pro-built.net/index.cfm?f...&productid=112 for the Corvette servo, or try http://www.pro-built.net/index.cfm?f...&productid=111 for the Corvette servo & both boost valves. Let me know if I can be of help?
Go to http://www.pro-built.net/index.cfm?f...&productid=112 for the Corvette servo, or try http://www.pro-built.net/index.cfm?f...&productid=111 for the Corvette servo & both boost valves. Let me know if I can be of help?
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Jan 30, 2004 07:48 PM