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Transmission Woes

woyster_00z71

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woyster_00z71 Enthusiast

woyster_00z71

Posted
Posted

Hey guys, me again. Two new posts with two new problems in 10 minutes. It is shaping up to be one hell of a day.

 

Anyway, I have been having a couple of problems with my transmission lately on my '01 Tahoe. First problem happens when the transmission shifts from first to second under mid to heavy acceleration. As the tranny gets to the top of the gear, the engine seems to rev for a second as it shifts. Normal operation seems to cut the throttle for a split second but for some reason my engine seems to be revving.

 

Second problem only happens every once in awhile and I think others have posted the same problem. From a stop, occasionally, the transmission will seem to be stuck in second gear and won't move when the accelerator is pushed. It will then slam into first and take off.

 

Finally, while either cruising or going around a turn and the brakes are applied or the vehicle is allowed to slow slightly, when the accelerator is re-applied the tranny seems to slip before engaging. Is this the slip yoke problem others have been complaining about?

 

Sorry for the long post of problems but it is a compilation of problems that I have been having over the past couple of months. I realize that it may not be tranny related and may be caused by something else but I was just trying to relay the symptoms of what is happening.

 

Thanks for you help.

B.J.

clk7711 Enthusiast

clk7711

Posted
Posted
Finally, while either cruising or going around a turn and the brakes are applied or the vehicle is allowed to slow slightly, when the accelerator is re-applied the tranny seems to slip before engaging. Is this the slip yoke problem others have been complaining about?

 

My truck does this to, but now I don't notice it as much since my new trans was installed the other day. :thumbs:

MichaelL Enthusiast

MichaelL

Posted
Posted

my experience from day one with my '00 was the same as yours, only when i took it in, the tranny would act like a nice kid and not act up.

from the first day all the way to 90K it would act like this from 1st to 2nd. then it started doing it from 2nd to 3rd.

this is where it finally became consistent and the dealer was able to verify it.

this truck had also been issued a 100K mile warranty because of my complaint of the inevitable cold engine knock, so the warranty came in handy as they replace the tranny.

come to find out, there are issues with the trannies that involved an updated valve body that increased pressure for shifting.

 

GM has replaced my trans with a remanufactered unit that does not exhibit the previous behaviour.

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