Overdrive Tranny Slippage. Is this Normal?
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From: Junction City, Kansas
Overdrive Tranny Slippage. Is this Normal? I can rebuild a motor all day long, but not too educated on transmissions. Hear me out please.
I have a 2001 Trans Am WS6 auto. The car has the stock motor and long tube headers, tsp cat back exhaust, and minor suspension bolt ons. Not to long ago I changed the transmission filter and fluid. The car is around 64k on the odometer. I've noticed two things that started around the time I changed the filter.
1 - When I am in overdrive cruising the tranny will slip slightly when I ease on the gas. It doesn't do it or isn't noticeable if I get on the gas hard. Is this a vacuum related deal with the tranny filter pick up tube?
The car does not do this in 1st, 2nd, or 3rd gear settings. Only in Driver.
2 - Car sounds great when in park or neutral, but when it is put into drive or reverse it almost sounds like there is a clicking or knocking coming from the converter area. It is very hard to hear when under the car, but noticeable in the car and echoed off the curb.
I have HP Tuners if anyone has tips for the tranny?
I have a 2001 Trans Am WS6 auto. The car has the stock motor and long tube headers, tsp cat back exhaust, and minor suspension bolt ons. Not to long ago I changed the transmission filter and fluid. The car is around 64k on the odometer. I've noticed two things that started around the time I changed the filter.
1 - When I am in overdrive cruising the tranny will slip slightly when I ease on the gas. It doesn't do it or isn't noticeable if I get on the gas hard. Is this a vacuum related deal with the tranny filter pick up tube?
The car does not do this in 1st, 2nd, or 3rd gear settings. Only in Driver.
2 - Car sounds great when in park or neutral, but when it is put into drive or reverse it almost sounds like there is a clicking or knocking coming from the converter area. It is very hard to hear when under the car, but noticeable in the car and echoed off the curb.
I have HP Tuners if anyone has tips for the tranny?
Th slight slip feel when just tilting in on the throttle is just your converter unlocking i would bet.
The clicking may be a cracked flex plate/
The clicking may be a cracked flex plate/
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Thread Starter
TECH Apprentice
iTrader: (15)
Joined: Nov 2003
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From: Junction City, Kansas
Is there anything I can do/tune on the tranny to adjust the "unlocking"? And what are the chances the flex plate is cracked on a stock tranny/motor that to my knowledge has never been removed? I am the second owner of the car. The first was female driven.
well flex plate can break anytime and while the unlock is normal on a tilt in your can change it in tuning to take more or less
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try laying your foot on the brake lightly while cruisin on flat ground, say around 50 or so, see if the rpm's jump up a little-that would be your converter unlocking, does the same thing as getting on the throttle-the throttle postion switch is designed to unlock the converter to allow the engine to apply more torq for accelration, acting like a normal non locking converter-try and imagine a 4 sp man trans, at a lower speed, step on the gas, kind of a dog unless you downshifted to 3rd
sometimes the PCM can be tuned to allow more % of throttle to keep the converter locked up, or have the speed adjusted to lock up sooner/later
sometimes the PCM can be tuned to allow more % of throttle to keep the converter locked up, or have the speed adjusted to lock up sooner/later
