HELP!!! Transmission Problem!!
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Audiworld Junior Member
Joined: Apr 2007
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HELP!!! Transmission Problem!!
I was driving tonight and everything was fine, got off the highway crusing down the road when all of a sudden my tranny started acting up, I was in tip mode in 3rd gear put it in 4th and when I stepped on the gas teh car just revved to red line and the the tranny went into limp mode and all the gears lit up. I pulled over turned the car off and restarted it and it was fine until I put it in 4th again and the same thing happened. Reverse 1st 2nd and 3rd gear are fine and there are no noises coming from teh tranny and everything shifts smoothly until you put it in 4th. I had the tranny flushed and the filter and fluid changed 2 weeks ago with oem fluid. The rear diff was also flushed and refilled. Im getting a CEL P0734 which is 4th gear ration incorrect. ANyone know whats causing this problem? It sucks too becuase I had an appointment at AWE on tuesday for a tip chip install...
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Joined: Jan 2007
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Assuming you have a VAG-COM you can look at certain
measuring blocks... pretty sure 003, 004, 005,
are measuring blocks showing the solenoids.
Maybe try logging the car when driving and take note of the volts for 4th gear solenoid to see if it's faulty by measuring resistance?
Also, have you ever changed the fluid and filter?
are measuring blocks showing the solenoids.
Maybe try logging the car when driving and take note of the volts for 4th gear solenoid to see if it's faulty by measuring resistance?
Also, have you ever changed the fluid and filter?
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Joined: Jan 2007
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Slip happens after ATF replacement.
Or can happen rather... some people experience
this, and some do not after ATF refill.
Sometimes after filling with new fluid, the
tranny can react by slipping I'm not exactly
sure why, but sludge and varnish could be the
culprit. I know some folks say "yeah but it's
sealed"... well isn't that what Audi says too.
Audi also states it's "lifetime fluid."
I had recently gone through a issue with my
trans. slipping 8 months later after refilling
the ATF. I had not been able to replace the
filter at that time. So I refilled again
recently with a new filter and I also added
AutoRx and about 1 week later the slipping
stopped. This could be because varnish or
sludge is getting removed and/or perhaps
clogging one of the many oil passages.
Also try cleaning your MAF (MAF cleaner only).
And do throttle body adaptation with VAG-COm too.
this, and some do not after ATF refill.
Sometimes after filling with new fluid, the
tranny can react by slipping I'm not exactly
sure why, but sludge and varnish could be the
culprit. I know some folks say "yeah but it's
sealed"... well isn't that what Audi says too.
Audi also states it's "lifetime fluid."
I had recently gone through a issue with my
trans. slipping 8 months later after refilling
the ATF. I had not been able to replace the
filter at that time. So I refilled again
recently with a new filter and I also added
AutoRx and about 1 week later the slipping
stopped. This could be because varnish or
sludge is getting removed and/or perhaps
clogging one of the many oil passages.
Also try cleaning your MAF (MAF cleaner only).
And do throttle body adaptation with VAG-COm too.
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Thread Starter
Audiworld Junior Member
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Re: Slip happens after ATF replacement.
yeah I took it to my mechanic and he said it can be from adding the new fluid since it cleans all the gunk and deposits and has alot of detergents. Hes gonna pull the tranny and take a look at the inside and see whats wrong
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Re: Slip happens after ATF replacement.
Pull the tranny? Sounds expensive!!! I'd try output diagnostics first. Many components can replaced by only dropping the transmission drain pan.
How many miles were on the tranny before fluid and filter replacement?
How many miles were on the tranny before fluid and filter replacement?
Junior Member
Joined: Jan 2007
Posts: 543
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Egads man!! I agree with Nutch, pulling the tranny cannot be cheap.
Are you sure he uses approved ATF??
What ATF do you have in there? Pentosin
is probably best. I have Amsoil in mine
right now but it is LT 71141 (ESSO)
approved (important).
If your brazen... you might.. and I say <i>might</i> want to try AutoRx. It's
very safe as far as I'm concerned. Fatty
lanolin acids. But it can have an adverse
affect on the ATF's viscosity... but i only
use 6 ounces.
However if the tranny starts to show signs
of getting worse after the AutoRx, then drain & refill.
What ATF do you have in there? Pentosin
is probably best. I have Amsoil in mine
right now but it is LT 71141 (ESSO)
approved (important).
If your brazen... you might.. and I say <i>might</i> want to try AutoRx. It's
very safe as far as I'm concerned. Fatty
lanolin acids. But it can have an adverse
affect on the ATF's viscosity... but i only
use 6 ounces.
However if the tranny starts to show signs
of getting worse after the AutoRx, then drain & refill.