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HELP! Trans Trouble - Auto C5

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Old Dec 31, 2006 | 05:33 PM
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Default HELP! Trans Trouble - Auto C5

My '01 C5 lost all forward gears today (son called me and told me). It shifts into reverse, however just acts as though its in neutral when dropping it into drive, 3, 2, and 1. Happened when entering the highway. Worked great up to that point. Any ideas? Could this be electronic?
Thx, G-Man
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Old Dec 31, 2006 | 07:09 PM
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sounds like you are in need of a new tranny .there are 2 vendors on this site that do great work .The first is http://www.finishlinetrans.com/policies.htm chuck does great work http://www.rpmtransmissions.com/ i have only heard of good thingd from both vendors , u cant go wrong with either one
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Old Dec 31, 2006 | 07:33 PM
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Thx. I hope not though. The car has 28k and showed no signs of tranny failure like slippage, erratic shifting, burnt fluid, etc.
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Old Dec 31, 2006 | 07:50 PM
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u maybe low on fluid ,have u checked the fluid? If not u are gonna have to jack the rear end up get it on some jack stands theres no dipstick tube theres a plug thatyour gonna have to screw outthe tranny fluid should pour out if not add some until it pours out or u could get a rollback & have them tow it to the dealer & let them do it .It very well maybe running low on fluid .I would check that out before spending 2k on a tranny,If anyone knows a better way to check tranny fluid on an a4 please chime in
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Old Dec 31, 2006 | 08:33 PM
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Thx again. I'm in Orlando now, but will check it when I get back to Dallas on Wednesday.
G-Man
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Old Dec 31, 2006 | 10:47 PM
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My 02 C5 lost all but 1st & 2nd gear with no warning. Had to be rebuilt at 70k miles. I stay under GMPP warranty always.
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Old Dec 31, 2006 | 11:03 PM
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Originally Posted by glackore
Thx. I hope not though. The car has 28k and showed no signs of tranny failure like slippage, erratic shifting, burnt fluid, etc.
That's awfully low mileage for a tranny to need to be rebuilt unless its been abused . Check the fluids first then have a trusted mechanic take a look at it and hope for the best.
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Old Jan 1, 2007 | 12:09 AM
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Thx for the replies.
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Old Jan 1, 2007 | 02:33 PM
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While entering the highway was your son shifting the trans manually???
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Old Jan 1, 2007 | 04:46 PM
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My tranny went south at 38000 miles
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Old Jan 1, 2007 | 05:35 PM
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Tranny was in Drive when entering the highway. I am guessing that he was accelerating pretty hard (19 years old you know).
Thx
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Old Jan 2, 2007 | 12:31 PM
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I had my shift cable fall off at the trans lever. In which case it would not start because it was not in park or neutral.
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Old Jan 3, 2007 | 10:30 AM
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Just got back to Dallas from Florida. I'll be checking the DIC for codes in a bit and also trans fluid level. I've started the car and I do feel it go into gear however no movement in any forward gears. Reverse is OK. I'll post something if I find it. Thx.
G-Man
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Old Jan 3, 2007 | 05:34 PM
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After checking the vehicle:

1. No mechanical issues such as cables off, vacuum hoses, etc.
2. No codes to read regarding the PCM or anything else power train related
3. Fluid level is OK and the fluid is clean and red, not burnt

Looks like it is off to the transmission shop!

G-Man
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Old Jan 3, 2007 | 09:33 PM
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Originally Posted by glackore
After checking the vehicle:

1. No mechanical issues such as cables off, vacuum hoses, etc.
2. No codes to read regarding the PCM or anything else power train related
3. Fluid level is OK and the fluid is clean and red, not burnt

Looks like it is off to the transmission shop!

G-Man
Just to be sure:

You checked the fluid level by running the engine until the trans temp was between 85 and 125 degrees and then you pulled the plug on the side of the pan (with the engine still running) and found the fluid level was even with the the bottom of the hole?

The only reason I ask that is it sounds strange that your fluid is clean, unburnt and only had 28,000 miles on it.

My tranny was toast with low mileage but my fluid was burnt.
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Old Jan 4, 2007 | 01:26 PM
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I've had a friend at the trans shop look at it. The consensus is that the forward gear planetary is broke. RPM Transmissions (a CF sponsor) has confirmed this on e-mail. The engine/trans combo is good, but when running the car hard the trans is the weaker link.
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Old Jan 4, 2007 | 01:55 PM
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edited by Torch.

Last edited by TORCH; Jan 4, 2007 at 03:37 PM.
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Old Jan 4, 2007 | 02:58 PM
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Originally Posted by BryanCode



WTF!!!

Attention to everybody, do not click on his links
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