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Dave Nova
Dave Nova, Pontiac Technician
Category: Pontiac
Satisfied Customers: 19451
Experience:  ASE Master Certification. GM World Class Certification
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What is the P0742 code TCC system Stuck on a 1999 Pontiac

Resolved Question:

What is the P0742 code? TCC system Stuck on a 1999 Pontiac Montana 3.1L requires what type of repair? Ken Tucker needs your help!
Submitted: 7 years ago.
Category: Pontiac
Expert:  Dave Nova replied 7 years ago.
This trouble code sets when the computer determines the the torque converter clutch is staying on when it is commanded off. This is typically due to a faulty TCC solenoid or a stuck valve in the transmission valve body. Replacing the TCC solenoid and inspecting for free movement of the tcc apply valves is the recommended service procedure.
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