700r4 wont shift after adding fluid
700r4 wont shift after adding fluid
k so we have an 86 vette at our shop thats been sitting for a few years i decided one day to start playing with it and took it for a ride. right away i noticed when shifting from reverse to drive that i had to pull shifter into 3rd to get to engage. once it warmed up i noticed it slip a lil bit so i added fluid and now it wont shift out of first. any ideas? i read somewhere the what the tv cable hooks to in trans may be stuck. im good with motors but lost on transmissions
Member
Joined: Aug 2010
Posts: 193
Likes: 0
From: Kansas City
Car: 1984 TA - 17k orig miles
Engine: 355
Transmission: 700R4
Axle/Gears: 3.44 Dana 44 performance rear
Re: 700r4 wont shift after adding fluid
Did you just "add fluid" or did you check it and it was actually low on fluid and you filled it up to the PROPER level?
Not shifting out of first is either TV (the valve not the cable) stuck or the governor not working properly causing the 1-2 shift. If it's the TV then you can sometimes put the car up on stands, put the trans in drive and with it at high idle remove the cable from the linkage and then pull it fully open and then let it snap shut a couple of times and if it's sticky you're hoping to free it up without having to actually get in the trans and free it up.
The governor - you can pull the cover off, pull it out and clean/inspect it and I would replace the seals on it while it's out - make sure the gear hasn't stripped as that's actually somewhat common in old 700R4's.
Not shifting out of first is either TV (the valve not the cable) stuck or the governor not working properly causing the 1-2 shift. If it's the TV then you can sometimes put the car up on stands, put the trans in drive and with it at high idle remove the cable from the linkage and then pull it fully open and then let it snap shut a couple of times and if it's sticky you're hoping to free it up without having to actually get in the trans and free it up.
The governor - you can pull the cover off, pull it out and clean/inspect it and I would replace the seals on it while it's out - make sure the gear hasn't stripped as that's actually somewhat common in old 700R4's.
Member
Joined: Aug 2010
Posts: 193
Likes: 0
From: Kansas City
Car: 1984 TA - 17k orig miles
Engine: 355
Transmission: 700R4
Axle/Gears: 3.44 Dana 44 performance rear
Re: 700r4 wont shift after adding fluid
Near the tailshaft on the side of the transmission and under a round cover that's just press-fit on with an o-ring. If you're worried about it coming off after pulling it apart an old TH350 retainer fits the trans if I recall right.
Senior Member
Joined: Jun 2003
Posts: 627
Likes: 0
From: Carson City Nevada
Car: 86 coupe
Engine: 383
Transmission: 700r4
Axle/Gears: 9 bolt 3.27 posi
Re: 700r4 wont shift after adding fluid
Had a similar problem once. Did you re-adjust the t-v cable? I found after fixing a few dents in the governor housing that mine was shifting at 4k with light throttle and I had just adjusted the t-v cable. Still scratching my head over that one.
Member

Joined: Feb 2012
Posts: 189
Likes: 2
From: Tokyo, Japan
Car: 92 camaro convertible z28
Engine: 305 TPI
Transmission: Swapped from 700R4 to T5
Axle/Gears: Stock Posi. Ratio is not known
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