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Transmission shifts..rough..at low speeds under power

Customer Question
my transmission shifts very rough...
my transmission shifts very rough when shifting down at low speeds under power
Submitted: 8 years ago.Category: Buick
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Answered in 6 minutes by:
6/24/2010
Buick Mechanic: JHoop, Technician replied 8 years ago
JHoop
JHoop, Technician
Category: Buick
Satisfied Customers: 5,446
Experience: 14 Year Engine Builder,16 years as a Tech HvyLine, Suspension, Electrical, Brakes, 6 Year Shop Owner
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Hello , my name isXXXXX you for choosing justanswer.com.

Two questions. Has the trans been serviced properly?

Is the check engine light on?
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Customer reply replied 8 years ago

trans has been serviced on schedule since new

check eng light not on

Buick Mechanic: JHoop, Technician replied 8 years ago
Has anyone scanned the computer for trouble codes?
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Customer reply replied 8 years ago
no not yet
Buick Mechanic: JHoop, Technician replied 8 years ago
First thing to do. All Autozone stores will do this free of charge.

Post the codes here and I can help.

I will keep your question open. You can get back to me anytime answering any e-mail sent to you related to this question or by logging into your JA account.
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