Transmission Troubles?

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01-25-2008 | 05:17 PM

#11

Alzonie

Senior Member

Joined: 05-23-2006

Posts: 1,082

From: Chandler, AZ

Quote:

Originally Posted by Goose

You guys notice that the drivetrain sounds very noisy when it is old out and just starting out? Almost like a whine..is this something all GM trannys exhibit?

Goose

I've noticed the same thing with ours when first starting out on a cold Morning. (Cold here being 35 degrees or so!)

But within a couple of miles or so the "Whine" goes away and it's shifting just fine.

01-26-2008 | 09:39 AM

#12

hhrcrafty

Banned

Joined: 10-24-2006

Posts: 1,761

From: The Show-Me State

The older design GM transmissions are pretty loud when cold like that. The internal pump has to work pretty hard to get the pressure up in that cold fluid.

01-26-2008 | 04:51 PM

#13

Alzonie

Senior Member

Joined: 05-23-2006

Posts: 1,082

From: Chandler, AZ

Quote:

Originally Posted by hhrcrafty

The older design GM transmissions are pretty loud when cold like that. The internal pump has to work pretty hard to get the pressure up in that cold fluid.

Do you mean the tranny in an '06 HHR is an "old" design??

01-26-2008 | 05:57 PM

#14

Black Rose

Senior Member

Joined: 08-17-2006

Posts: 1,851

From: Ottawa, Ontario

The transmissions in a lot of GM FWD vehicles are "old" designs. If it's not broken, don't fix it.

01-27-2008 | 09:25 AM

#15

cc732

Senior Member

Joined: 07-19-2007

Posts: 134

From: Amherstburg, On Can.

"Old" Design?

Quote:

Originally Posted by Black Rose

The transmissions in a lot of GM FWD vehicles are "old" designs. If it's not broken, don't fix it.

The 4T/45E is one of the "newer" programmable transmissions.

I haven't had the opportunity to investigate the "newer" 6 speed FWD (re: 2008 Malibu LTZ) yet.
GMPT & Windsor Trans., make a lot of "upgrades" of both software and hardware as model years progress.

Clare