trans jerks after stop

**grey08** · 06-28-2012

just bought a 08 gp and my trans jerks after a stop only happend a couple times and dont know what it could be?

**grey08** · 06-28-2012

Originally Posted by grey08

just bought a 08 gp and my trans jerks after a stop only happend a couple times and dont know what it could be?

Any body have a idea no codes 91 000 miles plZ help

**Bluemagic** · 06-28-2012

Have you checked the fluid? Color of the fluid? Last time it was serviced? Fluid levels correct?

**GMCustomerService** · 06-29-2012

Originally Posted by grey08

just bought a 08 gp and my trans jerks after a stop only happend a couple times and dont know what it could be?

The slip yoke splines may need to be cleaned/lubricated or replaced. This is just a suggestion, not a diagnosis. I encourage you to consult with a certified technician for an official diagnosis.

Please keep us posted.

Louis
GM Customer Service

**Scottydoggs** · 06-29-2012

Originally Posted by GMCustomerService

The slip yoke splines may need to be cleaned/lubricated or replaced. This is just a suggestion, not a diagnosis. I encourage you to consult with a certified technician for an official diagnosis.

Please keep us posted.

Louis
GM Customer Service

what slip yokes are you referring to? this is a fwd car.

rwd cars have slip yokes on the rear and front drive shafts, if a 4x4. when they get dry its referred to as brake squawk, its a GM tsa.

**GMCustomerService** · 06-29-2012

Originally Posted by scottydoggs

what slip yokes are you referring to? this is a fwd car.

rwd cars have slip yokes on the rear and front drive shafts, if a 4x4. when they get dry its referred to as brake squawk, its a GM tsa.

My apologies. Posted on the wrong forum. Thankfully the weekend is almost here!

Louis
GM Customer Service

**grey08** · 07-02-2012

pulled pan and changed filter and fluid still dont feel right everything looked normal as far as what was in the pan. fluid was not that bad either

**BillBoost37** · 07-03-2012

Only thing I can think of is a delays downshift to 1st. But that doesn't even make any sense.

**Rico** · 07-03-2012

Originally Posted by BillBoost37

Only thing I can think of is a delays downshift to 1st. But that doesn't even make any sense.

Could he be experiencing some engine surge due to a bad check valve in the master cylinder vacuum line?

**BillBoost37** · 07-03-2012

Or iac being a little sticky on picking up from the decel...sure. We are kinda stretching though.

**Rico** · 07-03-2012

Easy way to tell if it's the master vacuum is pump the breaks hard while going slow.

I request a better description of what is actually happening.

"jerks after stop"

Not very informative.

**BillBoost37** · 07-03-2012

Although not super descriptive... I think I understand what is being said. I want to say that's the first releasing or second dropping to first.

**Rico** · 07-03-2012

Bill

Wouldn't that just cause the engine to bog a little?..a late second to first down shift?

**BillBoost37** · 07-03-2012

I don't think so.. Maybe a sticky soleniod or check ball.. I'd have to read up on that link I posted to the trans/info links thread by me yesterday. BTW.. Seriously good info there.