4T40E: Slams into gear - Transmission Forum

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4T40E: Slams into gear
Tuesday, February 02, 2010 10:51 AM
Okay as of about two minutes ago my auto trans started slamming into gear; from Park-Reverse-Nuetral-Drive. Transfering from each of these to the next feels like a full throttle shift (HPTuners tuned for upshifting firmness and speed). But it's doing this at a stop. Any ideas wtf is going on?


"Vroom."
"Yo I wouldn't race him, there's not even an interior in his car man."
"Vrooooooom PSSSSHHH!"
"Oh sh*t. F*ck that, dude..."



Re: 4T40E: Slams into gear
Tuesday, February 02, 2010 11:08 AM
trans mounts? i would check there first.








Re: 4T40E: Slams into gear
Tuesday, February 02, 2010 11:12 AM
I know this might sounds crazy, but check your IAT sensor. When they fail they drive the trans crazy, and the trans acts just like you have explained.

Have you messed with the force current at all in HPTuners?



PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
Re: 4T40E: Slams into gear
Tuesday, February 02, 2010 11:25 AM
-MD- Enforcer wrote:I know this might sounds crazy, but check your IAT sensor. When they fail they drive the trans crazy, and the trans acts just like you have explained.

Have you messed with the force current at all in HPTuners?


Okay, well my IAT is not plugged in right now because of the charge pipe not having a bung for it... Could this be my problem all together? And is this damaging my trans when it shifts like this?


"Vroom."
"Yo I wouldn't race him, there's not even an interior in his car man."
"Vrooooooom PSSSSHHH!"
"Oh sh*t. F*ck that, dude..."


Re: 4T40E: Slams into gear
Tuesday, February 02, 2010 11:33 AM
Well I got it to plug in, how long if that was the issue should it take for it to start working correctly now that the IAT sensor is plugged in?


"Vroom."
"Yo I wouldn't race him, there's not even an interior in his car man."
"Vrooooooom PSSSSHHH!"
"Oh sh*t. F*ck that, dude..."


Re: 4T40E: Slams into gear
Tuesday, February 02, 2010 11:38 AM
Disconnect the battery, and let it sit for 10 minutes, and reconnect. then see what it is doing.




PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
Re: 4T40E: Slams into gear
Tuesday, February 02, 2010 11:41 AM
Okay cool. How do you know so much about transmissions?


"Vroom."
"Yo I wouldn't race him, there's not even an interior in his car man."
"Vrooooooom PSSSSHHH!"
"Oh sh*t. F*ck that, dude..."


Re: 4T40E: Slams into gear
Tuesday, February 02, 2010 11:50 AM
It's called books, and learning the hard way sometimes.


Also, what did you adjust inside your trans tables inside HPTuners?





Edited 1 time(s). Last edited Tuesday, February 02, 2010 11:52 AM

PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
Re: 4T40E: Slams into gear
Wednesday, February 03, 2010 10:40 AM
I'm not sure as to what is adjusted in the trans tables because I wan't the one who tuned it. Steve from ecotec-tuning.com does all my tuning. Why do you ask what tables are adjusted? By the way, the car is running just fine now that I plugged in the IAT sensor. Good lookin out man.


"Vroom."
"Yo I wouldn't race him, there's not even an interior in his car man."
"Vrooooooom PSSSSHHH!"
"Oh sh*t. F*ck that, dude..."


Re: 4T40E: Slams into gear
Wednesday, February 03, 2010 12:10 PM
Just wanted to make sure you got it running right.



PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
Re: 4T40E: Slams into gear
Wednesday, February 03, 2010 12:26 PM
Oh yup good to go! Just gotta work out a lil exhuast leak off the mani and I'm golden. No big deal now.


"Vroom."
"Yo I wouldn't race him, there's not even an interior in his car man."
"Vrooooooom PSSSSHHH!"
"Oh sh*t. F*ck that, dude..."



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