700R4 Trans issue
#1
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Car: 1992 Firebird
Engine: 3.1 6 cylinder
Transmission: 700R4 automatic 4 speed
700R4 Trans issue
i have a 3.1 automatic firebird with a 700R4 automatic transmission. There is a loud knock from the transmission when shifting from 1st to 2nd gear. It doesnt feel like its slipping too bad but it is a very loud knock and you can definitly feel it. If anyone could help me figure out what it could be that would be great. Thanks!
#2
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Car: 1992 Firebird
Engine: 3.1 6 cylinder
Transmission: 700R4 automatic 4 speed
700R4 Transmission
I have a 92 Firebird 3.1 with a 700R4 auto transmission. When the car shifts from 1st to 2nd gear it has a loud knock and the car shifts very hard. It only does this when at a higher RPM. It doesnt do it if you leave easy. It does it aroune 3500-4000+ RPM. If you can help diagnose this that would be great. Thanks!
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Car: 1992 Firebird
Engine: 3.1 6 cylinder
Transmission: 700R4 automatic 4 speed
Re: 700R4 Trans issue
Ok i will. Do you think it could also be the bands? Or maybe needs an adjustment of the TV cables?
Last edited by LGS_18; 08-06-2016 at 10:47 AM.
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Car: check
Engine: check
Transmission: check
Re: 700R4 Trans issue
Only one band, it may be it, don't know until you check. The TV adjustment is easy to check, open hood, rotate throttle fully open, check that the cable is tight, done.
While under there also check the transmission mount, they tend to break and can allow the rear of the trans to flip upward and bang.
If nothing else has been done to the trans a larger boost valve is a nice upgrade.
RBob.
While under there also check the transmission mount, they tend to break and can allow the rear of the trans to flip upward and bang.
If nothing else has been done to the trans a larger boost valve is a nice upgrade.
RBob.
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Car: 1992 Chevrolet Camaro RS
Engine: 350 TBI
Transmission: NWC T5
Axle/Gears: 3.45 9 bolt posi
Re: 700R4 Trans issue
RBob beat me to it. Mine broke a trans mount after I put a shift kit in it.
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