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Home >> Pontiac >> 2005 >> Vibe Base, FWD, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - Mu4 >> Diagnostic Information and Procedures >> Harsh Downshift

Harsh Downshift

Harsh Downshift Chart

Problem Action
Throttle valve cable out of adjustment Adjust the throttle valve cable.
Faulty throttle valve cable and cam Inspect the throttle valve cable and cam.
Faulty accumulator pistons Inspect the accumulator pistons.
Faulty valve body Inspect the valve body.
Faulty transaxle Overhaul the transaxle.
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