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No Engine Braking in First Gear

Checks

Causes

1-2 Shift Solenoid Valve

Inspect for a malfunction of the 1-2 shift solenoid valve.

2-3 Shift Solenoid Valve

Inspect for a malfunction of the 2-3 shift solenoid valve.

Park/Neutral (P/N) Position Switch

Inspect for an improperly positioned P/N position switch.

Select Linkage

Inspect for an incorrect adjustment of the select linkage.

Transmission Fluid Level

Inspect the transmission fluid level.

Transmission Control Module (TCM)

Inspect for a faulty TCM.

Control Valve Spool

Inspect for a malfunction of the control valve spool.

Low Clutch

Inspect for a burned or worn low clutch.

Low and Reverse Brake

Inspect for a burned or worn low and reverse brake.

   


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