Notchy shifting. Suggestions please
Thread Starter
Instructor
Joined: Sep 2000
Posts: 183
Likes: 0
From: Atlanta,Georgia,US
Notchy shifting. Suggestions please
My MN6 over the past several weeks seems more difficult to shift. The change has been slow, but it definitely feels different. The 99 Cpe has about 30k on it. The tranny fluid was drained at the dealer at about 20k as the gasket was leaking. The shifting seems notchy, like there's some resistance especially when going from first to second gear. Other shifts are not as bad, but different. Any thoughts?
Racer
Joined: Feb 2001
Posts: 468
Likes: 0
From: Lawrenceville GA
Re: Notchy shifting. Suggestions please (Vetterinarian)
Could just be the colder weather...mine's pretty notchy until the gear box warms up. Try changing to a snythetic ATF (yes, I know you said MN6). I'm going to change to Redline or M1 in the spring.
Melting Slicks
Joined: Aug 1999
Posts: 2,460
Likes: 0
From: Rocklin CA
Re: Notchy shifting. Suggestions please (Vetterinarian)
Synqros could be going.
Mine was awful I hated it. I almost sold the car because of it!
But my GMPP covered a new tranny.
Now it's fine.
Just a suggestion,
Tim
Mine was awful I hated it. I almost sold the car because of it!
But my GMPP covered a new tranny.
Now it's fine.
Just a suggestion,
Tim
Burning Brakes
Joined: Feb 1999
Posts: 1,165
Likes: 1
From: San Jose CA
Re: Notchy shifting. Suggestions please (Vetterinarian)
I don't know what juice GM puts in the MN6 trannies but my '99 did same after approx 10.000 miles. I changed to Redline D4ATF and had no problems since.
My car has 46.000 miles now and still shifting smoothly. I don't care if the Redline is GM approved or not, the results speak for themselves.
Hope this helps.
Roger
My car has 46.000 miles now and still shifting smoothly. I don't care if the Redline is GM approved or not, the results speak for themselves.
Hope this helps.
Roger
Thread Starter
Instructor
Joined: Sep 2000
Posts: 183
Likes: 0
From: Atlanta,Georgia,US
Re: Notchy shifting. Suggestions please (Vetterinarian)
Thanks for the replies. I don't think that it's the weather, as we've had some really great days here in Atlanta (well, except for today). It also doesn't improve with warming up. I am inclined to change to Redline as some have suggested. My only thought is since I have a GMPP warranty would it be best to bring it in for a look prior to changing out fluids? If they simply change out the fluid in the dealer (with GM fluid) would this be considered maintenance and not covered? Not sure of the next best move.
Melting Slicks
Joined: Aug 1999
Posts: 2,460
Likes: 0
From: Rocklin CA
Re: Notchy shifting. Suggestions please (Vetterinarian)
Thanks for the replies. I don't think that it's the weather, as we've had some really great days here in Atlanta (well, except for today). It also doesn't improve with warming up. I am inclined to change to Redline as some have suggested. My only thought is since I have a GMPP warranty would it be best to bring it in for a look prior to changing out fluids? If they simply change out the fluid in the dealer (with GM fluid) would this be considered maintenance and not covered? Not sure of the next best move.
Tim
Instructor
Joined: Nov 2001
Posts: 240
Likes: 1
From: Loudon Tn
Re: Notchy shifting. Suggestions please (Vetterinarian)
Glad to know my 99 not the only notchy shifter. Reeder Chevy in Knoxville says its "normal" I promised to stop in every time i drive by with the same complaint to get a nice BIG file and my GMPP $$ worth. I still LOVE this car. :chevy :smash: :smash:
Drifting
Joined: Mar 2000
Posts: 1,630
Likes: 1
From: Woodstock GA
Re: Notchy shifting. Suggestions please (Vetterinarian)
Why don't you stop by the shop so we can go for a ride and see what is happening so that way if you need syncros I can get them ordered. Is it hard shifting fast and not a problem when shifting slow? If the problem is more noticable when shifting fast then it's probably a syncro but I also want to make sure it's not a clutch problem. Oh in case you don't know I'm at Tom Jumper Chevy in Sandy Springs.
David Fulcher
David Fulcher
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Thread Starter
Instructor
Joined: Sep 2000
Posts: 183
Likes: 0
From: Atlanta,Georgia,US
Re: Notchy shifting. Suggestions please (David-F)
Thanks very much David. I bought the vehicle from Jumper and know Paul and Mac down in the shop. They have been great in the past. I'll try to get it down there some time this week.
Neil
Neil
Race Director
Joined: Nov 2001
Posts: 18,016
Likes: 0
From: sebring florida
Re: Notchy shifting. Suggestions please (vettenuts)
I went through this when I bought mine (97 6 speed, bought her last august). she is out of warranty so I changed her transmission fluid with redline about a month ago and I'm very happy with it.
