Other Concerns: No Engine Braking In Manual 1ST Position

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OTHER CONCERNS: NO ENGINE BRAKING IN MANUAL 1ST POSITION

Possible Component	Reference/Action
258 - ELECTRICAL ROUTINE
Powertrain Control System	-
Electrical inputs/outputs, vehicle wiring harnesses, powertrain control module, 3-2 timing/coast clutch solenoid	Run On-Board Diagnostics Tests. Refer to INTRODUCTION - GASOLINE . GO to PINPOINT TEST G .
358 - HYDRAULIC/MECHANICAL ROUTINE
Main Controls	-
Bolts out of specification	Adjust bolts to specification.
Gaskets damaged	Inspect for damage. Repair as necessary.
Low/reverse modulator valve, coast clutch valve stuck, damaged or misassembled	Inspect for damage. Repair as necessary.
3-2 timing/coast clutch solenoid stuck or damaged	Inspect for damage, contamination. Activate solenoid using the Transmission Tester. Repair as necessary.
Hydraulic passages damaged	Inspect for damage. Repair as necessary.
Pressure tap plate/gasket damaged	Inspect for damage. Repair as necessary.
Separator plate/gasket damaged	Inspect for damage. Repair as necessary.
Coast Clutch Assembly	-
Assembly misassembled, damaged	Inspect for damage. Repair as necessary.
Forward clutch hub seal damaged	Inspect for damage. Repair as necessary.
Piston or seals damaged	Inspect for damage. Repair as necessary.
Check ball damaged, missing	Inspect for damage. Repair as necessary.
Low/Reverse Clutch Assembly	-
-	Carry out Air Pressure Test.
Assembly misassembled, damaged	Inspect for damage. Repair as necessary.
Piston or seals damaged	Inspect for damage. Repair as necessary.
Pump Assembly	-
Pump support No. 2 or No. 3 seal rings for the coast clutch circuit damaged, missing	Inspect for damage. Repair as necessary.