07 gxp trans question

[goblue9976]

my gxp trans is acting funny (or so i think.) when slowing down to a stop it feels like when your driving a automatic and you downshift it into 1st/lo gear at too high of a speed and kinda slams 1st gear. it wont do it all the time and it will do it different every time (somtimes its harsher than others.) does this seem like a problem or am i just over reacting? its still under warranty but i just want to know so i dont seem like an idiot

[SDGTP99]

Idk much 'bout the tranny so: 4T65E Common Problems

This might give you some ideas. If not you could email Dave at Triple Edge Performance.

[goblue9976]

i mean its still got 48k of warranty left so im not too worried. luckally for me the gmc/buick dealer by me is really good but i dnt really want to go in there and find out nothings wrong if that makes sense

[SDGTP99]

Talk to Dave.

[timboku]

The GXP's go thru trannies like nothing. It is on its way out. Mine did the same thing, then I lost 2nd gear, then the torque converter went. Just had it replaced under warranty.
The torque converter is on a 5 week back order so my dealer told GM that I did not want to wait that long so I got a whole new tranny instead of a rebuild . Just an FYI.

[SDGTP99]

Is that because the ancient 4t65e was nvr intended to be used on Supercharged or V8 applications? Hmm. . .

[goblue9976]

well i just got it back from the dealer. they replarced a servo, solonoid and r&r the valve body. its all good now

[SDGTP99]

I get mine back sometime nxt week. They replaced the whole tranny.

[goblue9976]

do you have a gxp also?

[SDGTP99]

Nope. I've a GTP w/ a busted tranny.