Tranny problem help!
Thread Starter
Pro
Joined: Apr 2002
Posts: 677
Likes: 0
From: WInnipeg Mb
Tranny problem help!
My tranny doesn't want to shift properley. At higher rpms it won't go to the next gear and the tach just jumps around. Is it a possible vaccuum problem? How can i check if the vaccuum is working properley?
Le Mans Master
Joined: Aug 2000
Posts: 6,362
Likes: 7
From: Brazos TX
Cruise-In IV Veteran
Cruise-In V Veteran
Re: Tranny problem help! (Justin79-L-82)
That sounds like the vacuum modulator, check to see if the vacuum line is connected at both ends. I don't think the tach problem is related, that could be a bad ground or tach filter.
Racer
Joined: Jul 2002
Posts: 270
Likes: 14
From: Deland FL
Re: Tranny problem help! (burners)
After swapping intake manifolds, I had the same issue with the tranny. There is a metal vaccume line running from the back of the intake manifold down to the transmission and connects to the side. Just from moving it to the side to remove the intake, the vaccume hose that connects it (not the metal piece) cracked, causing the transmission to act the way you describe. Check that line.. it's your #1 suspect for the shifting problem. Good luck! :chevy:
Pro
Joined: Dec 2000
Posts: 560
Likes: 0
From: Camino CA
Re: Tranny problem help! (Justin79-L-82)
I would replace your vacuum lines even if they don't look cracked, that much hose will probably only cost $0.50
Have you checked your transmission fluid? You might want to change it and replace your filter and modulator.
Have you checked your transmission fluid? You might want to change it and replace your filter and modulator.
