Balky shifting
Thread Starter
Safety Car
Joined: Aug 2003
Posts: 4,988
Likes: 16
From: Hooterville, NJ
Balky shifting
Has anybody else have their mn6 balky when its cold. Mine is balky from 1 to 2 shift and 2 to 3 shift but only when cold. When the trans warms up it shifts ok. Bought the car used so I don't know if the trans fluid was ever changed. If it was it wasn't under warranty I do know that.
[Modified by Tsab, 7:47 PM 1/8/2004]
[Modified by Tsab, 7:50 PM 1/8/2004]
[Modified by Tsab, 7:47 PM 1/8/2004]
[Modified by Tsab, 7:50 PM 1/8/2004]
Team Owner
Joined: Jun 2000
Posts: 37,636
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From: Just trying to make it through each day.
Cruise-In III Veteran
Cruise-In V Veteran
St. Jude Donor '03-'04
Re: Balky shifting (Tsab)
Try Redline or Amsoil and see if it changes. Probably need a change anyway. :cheers: Good luck.
Le Mans Master
Joined: Apr 2002
Posts: 6,927
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From: Glendale NY
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18- '19
Re: Balky shifting (Tsab)
________________________________________ ________________________
Has anybody else have their mn6 balky when its cold. Mine is balky from 1 to 2 shift and 2 to 3 shift but only when cold. When the trans warms up it shifts ok. Bought the car used so I don't know if the trans fluid was ever changed. If it was it wasn't under warranty I do know that.
________________________________________ ________________________
Common problem during cold weather. I believe that is one reason GM went with an ATF fluid in the 6 spd. The cost of ATF is also cheaper than the "old" transmission fluids. Me, I use GM Synchromesh. I could start a war here, or maybe all that can be said....has been said.
Has anybody else have their mn6 balky when its cold. Mine is balky from 1 to 2 shift and 2 to 3 shift but only when cold. When the trans warms up it shifts ok. Bought the car used so I don't know if the trans fluid was ever changed. If it was it wasn't under warranty I do know that.
________________________________________ ________________________
Common problem during cold weather. I believe that is one reason GM went with an ATF fluid in the 6 spd. The cost of ATF is also cheaper than the "old" transmission fluids. Me, I use GM Synchromesh. I could start a war here, or maybe all that can be said....has been said.
Thread Starter
Safety Car
Joined: Aug 2003
Posts: 4,988
Likes: 16
From: Hooterville, NJ
Re: Balky shifting (vette#one)
Thanks for the reply. Figured its the lubricant as well. What I'm doing now is warming it up till I see 120 on the temp with clutch out in Neutral. Figure you want the trans to warm a bit. Its balky but once its been driven for 30 mins or so it becomes ok. I'm going to have the fluid changed soon to GM red line. I'll Give it a try and see what happens. My coupe goes in next month for heavy engine mods....cam, heads, exhaust etc. So I'll service the trans before I start that stuff. I had a 88 Tbird TC with a 5 speed and I had the reverse problem with that... when it warmed up it got balky to shift. I added a bottle of Slick 50 manual trans friction modifier to the fluid and the problem went away.
Pro
Joined: Jan 2002
Posts: 514
Likes: 0
From: Gaithersburg MD
Re: Balky shifting (Tsab)
Same thing is happening to me, fluid was only changed 5000 miles or so ago. It's freakin' cold recently, so I figured it must be temperature. I seem to remember the same thing happening last winter.
