Tranny brake question

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Jun 6, 2014 | 10:59 PM

renthalatvr

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From: millerton, pa

Tranny brake question

I'm running a 1998 Pontiac trans am with a th400 with a tranny brake ... My question is after I do my burn out and stage I hit the button and let off the foot brake and the car will move forward and the stop I then can push on the gas ... Anyone hear or this ?

Last edited by renthalatvr; Jun 7, 2014 at 05:16 AM.

Jun 7, 2014 | 06:29 AM

Old Geezer

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From: GA, USA

Try raising the idle a bit, B4 you engage the line loc..

Jun 7, 2014 | 06:33 AM

renthalatvr

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From: millerton, pa

Ill try it today

Jun 7, 2014 | 08:42 AM

ZHAWK154

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Once you push the Transbrake button the car should stay put. Then when you get on the 2-step it may rock a bit but it'll keEp same staging position.

Jun 7, 2014 | 09:37 AM

renthalatvr

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From: millerton, pa

Mine don't ... After I push the button and let off the brake it wants to move/jump and then it stops

Jun 7, 2014 | 01:15 PM

droksformula

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Try holding the button longer before you let off the brake tranny might not be at full line pressure yet.

Jun 7, 2014 | 02:11 PM

renthalatvr

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From: millerton, pa

Ok I'll try thank u

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Jun 9, 2014 | 08:23 AM

ssvert99

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From: Central Illinois

TH400 brake typically is better off with a bit more RPM to get pump pressures and fluid flow to move. The 400 has to fill a large capacity piston servo to apply the band that locks the drum... somewhat different than other transmissions.