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ebrock63, Repair shop manager and tech
Category: Transmissions
Satisfied Customers: 32069
Experience:  Over 25yrs experience as Shop manager and tech
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Buick Enclave CXL: I have a question about my 2008 Buick Enclave.

Customer Question

I have a question about my 2008 Buick Enclave. Why doesn't the transmission shift smoothly into gear 3-4-5-and 6. Vehicle has 138K Transmission was replaced in 2010 at around 60K
Submitted: 2 years ago.
Category: Transmissions
Expert:  ebrock63 replied 2 years ago.
I am sorry that you have not been helped yet. I just came online and saw your question.
A harsh upshift can be caused by faulty valve body, shift solenoids, torque converter clutch, or even the TP(throttle position) sensor, which acts on today's vehicles like the detent cable on older vehicles.