Transmission not shifting right?
Thread Starter
Junior Member
Joined: Feb 2009
Posts: 25
Likes: 0
Car: 1988 firebird trans am
Engine: 305 fuel inject. tbi
Transmission: 700r4
Transmission not shifting right?
The 3 speed plus overdrive tranny wont shift into overdrive all the time. Will shift when engine is cold at 55-60. but when warm- 80+ or never. Anyone know what the problem could be?
Thread Starter
Junior Member
Joined: Feb 2009
Posts: 25
Likes: 0
Car: 1988 firebird trans am
Engine: 305 fuel inject. tbi
Transmission: 700r4
Re: Transmission not shifting right?
o, to be honest i know cars but i dont know a whole lot. So are you saying my torgue converter is out then?
Junior Member
Joined: Feb 2009
Posts: 26
Likes: 0
From: Orlando Florida
Car: 1991 firebird/1982 trans am(sold)
Engine: 305/ 383 soon
Transmission: th700r4
Axle/Gears: 10 bolt 2.73
Re: Transmission not shifting right?
You must have a th700r4 tranny... It's not your torque converter as stated it is a problem in the computer that shifts the tranny.. As in a relay..
Senior Member
Joined: Mar 2003
Posts: 851
Likes: 3
From: vacaville,ca
Car: 1988 camaro z28,1997 camaro lt1
Engine: 355 afr 195 heads,tpis big mouth
Transmission: 700r-4 built by me 3-4 z pack
Axle/Gears: 3.42
Re: Transmission not shifting right?
the computer does not control transmission shifting just torque converter lockup.could be a valvebody problem, tv cable adjustment or 3-4 clutch pack going out in the transmission
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