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11-02-2009, 12:44 AM
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#1 |
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Registered User
Join Date: Mar 2009
Location: mulvane, KS
Posts: 200
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th400 kickdown
my trans has and electronic kickdown with the switch on the gas pedal. the switch on the gas pedal has power and is sending power down to the trans like its supposed to and when its supposed to, however the kickdown does not work unless speed is under 35 and even then it will only down shift 3-2 not to low gear like it should. and there is no passing gear kickdown. does the module that the wire hooks into go bad or is something wrong with the trans itself, just had i rebuilt a couple weeks ago
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11-02-2009, 08:47 AM
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#2 | |
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Still plays with trucks
Join Date: Jul 2009
Location: Spokane, WA
Posts: 3,556
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Re: th400 kickdown
Quote:
Call the shop and tell them the differences in kick down before and after the rebuild and they should know what to do to get it back to the way it was before. It is possible they gave you another transmission off their shelf and not your actual transmission back. Some rebuild books say a T-400 should only kick down to 2nd gear and not go to first but I have had T-400's that did and it sounds like yours did too. Maybe it is a valve body modification from a certain brand of shift kit. I don't know for sure but would definitely like to know. It makes a huge difference in performance. |
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11-02-2009, 10:25 AM
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#3 |
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Registered User
Join Date: Mar 2009
Location: mulvane, KS
Posts: 200
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Re: th400 kickdown
well i just bought the truck and the trans was out when i bought it so i dont know how it acted before
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11-02-2009, 10:27 AM
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#4 |
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Registered User
Join Date: Mar 2009
Location: mulvane, KS
Posts: 200
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Re: th400 kickdown
and i did get an exchange instead of waiting for them to rebuild the one i had
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11-02-2009, 08:59 PM
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#5 |
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certified tard
Join Date: Jun 2009
Location: grand junction, colorado
Posts: 182
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Re: th400 kickdown
ive never seen a 400 till i got my truck and saw a switch on the back of the carb, i pulled the power going to it and it didnt downshift at all! i hooked it back up and itll go from second to first no problem. BUT, when its cold it wont do it, the engine has to be at operating temp and the tranny has to be pretty warm as well. usually takes about 10 to 15 minutes of driving.
__________________
85 swb bbc 5% tint 16.356 @ 84.81 8/07/09 4800 Ft., bad timing, carb tune, and traction, fugg it. 16.169 @ 84.29 8/28/09 good timing, no carb tune, some traction... 06 Equinox LT AWD, wife's and family ride 03 Mustang V6, CAI, Duals, Pullies, Programmer, Short Throw, wife's dream car?! 90 Eagle Talon, other project / space taker, GOT head!! 08 Silverado 2500 HD, the bad ass work truck |
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11-02-2009, 09:46 PM
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#6 |
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Registered User
Join Date: Mar 2009
Location: mulvane, KS
Posts: 200
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Re: th400 kickdown
i just called the tranny shop that rebuilt it and they said if its gettin power to the switch on the trans then it should work. so now they get to fix it, they said they would have to pull the pan
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11-02-2009, 11:09 PM
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#7 |
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certified tard
Join Date: Jun 2009
Location: grand junction, colorado
Posts: 182
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Re: th400 kickdown
if they fix it and you dont pay, score for you. post us with the results!
__________________
85 swb bbc 5% tint 16.356 @ 84.81 8/07/09 4800 Ft., bad timing, carb tune, and traction, fugg it. 16.169 @ 84.29 8/28/09 good timing, no carb tune, some traction... 06 Equinox LT AWD, wife's and family ride 03 Mustang V6, CAI, Duals, Pullies, Programmer, Short Throw, wife's dream car?! 90 Eagle Talon, other project / space taker, GOT head!! 08 Silverado 2500 HD, the bad ass work truck |
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