I guess i did not explain it very well to start with....sorry.

My car just started doing this. While at WOT the car will hit the rev limiter when shifting from 1st gear into 2nd gear, and when shiftng from 2nd to 3rd.

This just started and at first I thought maybe the car was not total warmed up but after 30 mins of highway driving the car is still hitting the rev limiter. How do i fix this and what would make the car all of a sudden start doing this. The car has not had any mods added in the last few months. :confused:

 

Dude: Get your foot out of it!

 

The car is an automatic so your supposed to have your foot in it!

 

Now we're getting somewhere... it's an automatic. Does it have fluid?

I don't know how the automatic signals for a shift in the corvette, but you might not waste too much time by crawling underneath to see if any vaccum lines or electical connectors are loose.

Does the car have enough miles on it to worry about things like the bands slipping?

God help you if it's a brain. My local dealer only knows how to charge for the diagnostics, but doesn't have the know how to fix the computer related problems.

Keep it online though, someone with an expert opinion will surely chime in.

Good luck, Dude!

 

With an A4, full throttle shifts that start bouncing off the rev limiter are usually nature’s way of telling you that your transmission is slipping. Apparently, it’s not too bad at this point. When it gets really bad you’ll start throwing the P1870 code.

The stock A4 is marginal at best with a stock C5. GM went so far as to program in torque management to try to limit the amount of torque that the A4 has to handle. While a simple rebuild will solve your problems, the best solution is a beefed up A4 like a FLP Level 4, especially if you have modded your car or plan to.

 

The car has 37872 miles on it and has had the transmission fluid changed ever spring. Is that enough miles on it for the bands to be sliping? Surly the transmisson has a longer life than 38000 miles. The car has the most basic of mods and has only been to the drag strip once. So I have not abused it and mostly drive around town and when the weather is bad I drive my 49 *****'s.

Tony

 

Curious, does it have a TC and a ported MAF??

 

My '99 had 30,000 miles when it started to do it on the 2-3 shift and that was before my H/C. On my third hard launch after my H/C I started throwing the P1870 code. My '96 Siverado has a bone stock 250hp 350 and the transmission went belly up last month with only 38000 miles. I had done a fluid/filter change at 24000 on both vehicles. The truck has been to the drags but only in the parking lot and has never carried any loads heavier than a few hundred pounds. The '99 had never been run at a drag strip until after my H/C.

 

The list of mods is small:

Borla stingers
Varram
Coolent bypass

Thats it. So the consenus is the tranny is on the way out. That sucks...what does a good tranny cost?

:mad :cuss :mad :cuss :banghead:

 

my bone stock c5 does this only when i'm trying to shift it manually.

 

The trans doen't want to shift instantly but pauses and then hits the limiter. and yes its an auto

 

ttt i did not want this to die

 

I just had my tranny rebuilt at 41k miles. First thing I noticed was hesitation in the shifts at part throttle. Next, the trans would bang down into 1st if I was rolling in 2nd and then accellerated quickly when the trans was hot. It kind of felt like it was slipping and then caught suddenly. Then finally, it began hitting the rev limiter in 1-2 and 2-3 shifts at WOT.

I took it to the dealer and they said they felt something at 1-2. They drained a little fluid and it was burnt. I already had a Y3000 ordered so they installed it for me when they rebuilt the tranny under warranty. The parts they suspected and changed were the valve body and bands. 9k more miles and it would have been a HUGE bill! I'm glad my dealer has their own tranny guy in house and very good relations with GM. No fuss, no muss, GM said fix it and send us the bill! Life is good.

Thanks Steve F & Steve S if you're reading this. :cheers:

 

ttt

 

My '98 trans went out at 42K miles. Just as you describe.
I also changed the trans fluid yearly.
Me thinks that the A4 is overmatched by the LS1.
If it were'nt for all of the GD stop and go traffic I sit in around this
stupid state (VA). I'd have bought a six speed.
Try to find a dealership sevice tech who will rebuild it instead of ordering you a "factory" rebuilt. Then sell..... :thumbs:

 

Is the rev limit indicator indicated by the SHIFT light on the DIC?

My 99 A4 has done this since I have owned it (bought it with 24K on the odo). If i get on it hard, the shift light will come on for a moment between 1-2, not sure if it does it 2-3, but I'll have to check.

I have always assumed that this was normal, am I incorrect?

 

Questions, when was the last time you changed plugs and wires??? Did you watch the tach to verify that indeed you were hitting the rev limiter?

Mike :flag

 

I changed the plugs at 30000 but never have I changed the wires. Do you think the wires could have something to do with it?

:crazy: :crazy: :crazy: :crazy: :crazy: :crazy: :crazy:

 

As was stated above your trans is telling you it is heading for that big trans house in the sky. Get it rebuilt or replaced before it goes belly up with you 500 miles from home.

 

Here is my experience; Since last fall I have been having a similar problem. I too thought that the car was hitting the limiter, 'cause that's what it sounded like, right at the shift point, a stuttering miss. The weirdest thing is that it seemed to happen mostly at the track and my limiter is set to 6800. I knew that it wasn't revving that high. :confused: . I race the car a lot and change the plugs very often. When I change them I always check the wires with an OHM meter. They have always been in spec. They're the Taylor Thundervolts rated at 50 ohms per foot and only about 18 months old. After the last plug change, the miss became less pronounced, but was still there at the shift. Had a hunch, and "borrowed" ( sorry Tony A. they're mine now :) :p: ) my friends low milage stock wires. Presto the miss disappeared completely. Not only that but the idle went dead smooth, and the motor, which was not loud to begin with, got even quieter (sounds like a Lexus-bites like a Tiger though :D), and the gas milage went up noticeably. Took the car to the track and went 11.98 in the heat at 114. :smash:

What threw me off was the fact that the wires tested fine and were not that old, so I didn't find them suspect... always learnin' though.

So I would say with 30,000+ on the clock it's time to change the wires anyway. Who knows maybe the trans is fine.

My car has the same milage as you, but more mods, like a high stall TC, and it is raced almost every week. The trans is still strong as new. HTH

Mike :)


[Modified by Mikie C, 3:05 PM 8/8/2003]