TH700R4 is shifting gears to fast
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Junior Member

Joined: Jul 2009
Posts: 31
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From: Poland
Car: 1991
Engine: 3.1
Transmission: Automatic
TH700R4 is shifting gears to fast
1. After changing the transmission the gears shifts very quickly to third, maybe at 10-15 mph it's already on third. And because of that the acceleretian is very ppor. TV cable adjustment doesn't help in any direction. When I was attaching TV cable to the trans mount I felt it was a litte loose inside the tranny. So shuould I chcange TV valve in the trans or maybe whole valve body? Or something else?
I have the second unit so I can easily remove the valve or valve body, but will it help?
If I shift gears manually from 1 to 2 to 3 it accelerete much better but the gears seems very short and the tranny works very loud on higher rpms.
2. And the second issue. To drive out of garage I've always use reverse gear, but after starting cold, put in reverse and push the gas pedal nothing happens for about 3-5 second after thats works just fine.
Doesn't happend on hot engine. Is my torqe converter dying?
I have the second unit so I can easily remove the valve or valve body, but will it help?
If I shift gears manually from 1 to 2 to 3 it accelerete much better but the gears seems very short and the tranny works very loud on higher rpms.
2. And the second issue. To drive out of garage I've always use reverse gear, but after starting cold, put in reverse and push the gas pedal nothing happens for about 3-5 second after thats works just fine.
Doesn't happend on hot engine. Is my torqe converter dying?
Thread Starter
Junior Member

Joined: Jul 2009
Posts: 31
Likes: 0
From: Poland
Car: 1991
Engine: 3.1
Transmission: Automatic
Re: TH700R4 is shifting gears to fast
Joined: Sep 1999
Posts: 4,354
Likes: 308
From: NJ
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: TH700R4 is shifting gears to fast
I don't know too much about autos, but it sounds like maybe the governor may need different springs?
Thread Starter
Junior Member

Joined: Jul 2009
Posts: 31
Likes: 0
From: Poland
Car: 1991
Engine: 3.1
Transmission: Automatic
Re: TH700R4 is shifting gears to fast
Already done, doesn't help.
Last edited by czlowiekmucha; May 2, 2018 at 12:53 PM.
Supreme Member
Joined: Nov 2008
Posts: 1,146
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From: Houson
Car: 86 Firebird
Engine: 305 SBC
Transmission: 700 R4 TCI
Axle/Gears: 3.42
Re: TH700R4 is shifting gears to fast
Find a member of the Independent Garageman's association that does Trans in your area and let them take a look.
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Thread Starter
Junior Member

Joined: Jul 2009
Posts: 31
Likes: 0
From: Poland
Car: 1991
Engine: 3.1
Transmission: Automatic
Thread Starter
Junior Member

Joined: Jul 2009
Posts: 31
Likes: 0
From: Poland
Car: 1991
Engine: 3.1
Transmission: Automatic
Re: TH700R4 is shifting gears to fast
Over the weekend I've switched the entire valve body with all the valves and governor. Now it shifitng like a dream
so I don't know excactly what was the issue. But at full throttle it's shiftig a little bit to late so should I push the TV cable back or pull it out a liitle bit?
so I don't know excactly what was the issue. But at full throttle it's shiftig a little bit to late so should I push the TV cable back or pull it out a liitle bit? Thread
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