Transmission troubles

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Transmission troubles

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Chevrolet Forums >> Chevy Trucks, Vans & SUV's >> Suburban >> Transmission troubles

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Transmission troubles - 4/12/2007 2:15:41 PM

JTail

Posts: 3
Joined: 4/12/2007
Status: offline

I have a 2001 Suburban Z71 that won't shift into overdrive. It shifts thru the first 3 gears but not into overdrive. What could possibly be happening?

Post #: 1

RE: Transmission troubles - 4/13/2007 9:35:50 AM

golfer

Posts: 610
Joined: 10/8/2006
Status: offline

Could be the torque convertor lock solenoid which engages for overdrive.

(in reply to JTail)

Post #: 2

RE: Transmission troubles - 4/13/2007 11:03:34 AM

JTail

Posts: 3
Joined: 4/12/2007
Status: offline

thanks, I'll check it out!

(in reply to golfer)

Post #: 3

RE: Transmission troubles - 4/14/2007 10:37:05 PM

engine2

Posts: 1707
Joined: 12/24/2006
Status: offline

How many miles on the tranny?

(in reply to JTail)

Post #: 4

RE: Transmission troubles - 4/16/2007 1:38:33 PM

ZX1100F1

Posts: 2429
Joined: 8/1/2006
Status: offline

Usually when a no 3-4 shift occurs it is a faulty accumulator or servo, on occasion a stuck valve or bad pump can also cause the problem.
In any case it is not a home repair, however I always recommend the fluid and filter be changed before taking it in, it is cheap and sometimes solves the problem.

(in reply to engine2)

Post #: 5

RE: Transmission troubles - 4/19/2007 6:23:52 PM

JTail

Posts: 3
Joined: 4/12/2007
Status: offline

90,000 miles on the tranny... overdrive is working again... go figure!!! the Service Engine light went out... dealership "cannot duplicate problem". Kinda reminds me of going to the dentist with a toothache.

(in reply to ZX1100F1)

Post #: 6