Engagement Concern: No Forward and No Reverse

ENGAGEMENT CONCERN: NO FORWARD AND NO REVERSE - DIAGNOSTIC ROUTINES

Possible Component	Reference/Action
207 - ELECTRICAL ROUTINE
No electrical concerns
307 - HYDRAULIC/MECHANICAL ROUTINE
Transmission Fluid Level
Low transmission fluid level	Check transmission fluid level and adjust as necessary. Refer to PRELIMINARY INSPECTION .
Transmission fluid condition	Carry out transmission fluid condition check. Refer to PRELIMINARY INSPECTION .
Halfshaft
Splines - worn, damaged	Inspect for damage. Repair as required.
Shaft - misassembled, incorrect	Inspect for damage. Repair as required.
Selector Lever Linkage (Internal/External)
Damaged, out of adjustment	Inspect for damage. Repair as required. Verify selector lever cable adjustment. Refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS .
Incorrect Pressures
Line pressure, Line Pressure Control (LPC) pressure - low	Carry out Line Pressure and Stall Tests. Check pressure at the line pressure tap. See the Line Pressure Chart for specifications. If pressures are low, check the following possible components: Transmission Fluid Filter and Seal Assembly, Main Control, Pump Assembly, Low/Reverse Clutch Assembly, Forward Clutch Assembly.
Transmission Fluid Filter and Seal Assembly
Plugged, damaged, not correctly seated	Inspect for damage. Install a new filter and seal assembly.
Filter, seal - damaged	Inspect for damage. Install a new filter and seal assembly.
Main Controls
Solenoid body filter plugged	Inspect for damage. Install a new filter as required.
Manual valve	Inspect for damage. Install new as required.
Shift valves	Inspect for damage. Install new as required.
Bolts out of torque specification	Tighten bolts to specification.
Gaskets and separator plate - damaged, off location	Inspect for damage. Install new as required.
Main regulator valve (only if line pressure is out of specification) - damaged	Inspect for damage. Repair as required.
Components - damaged, check balls stuck	Inspect for damage. Repair as required.
Pump Assembly
Bolts out of torque specification	Tighten bolts to specification.
Porosity/cross leaks - leaking, plugged hole	Install a new pump assembly.
Components damaged - chain, sprocket or shaft broken	Inspect for damage. Install new as required.
Output Shaft
Splines - damaged	Inspect for damage. Repair as required.
Other Possible Components
Turbine shaft	Inspect for damage. Repair as required.
Pump shaft, sprockets and drive chain	Inspect for damage. Repair as required.
Flexplate	Inspect for damage. Repair as required.
Sun gear and shell assemblies	Inspect for damage. Repair as required.
Planetaries	Inspect for damage. Repair as required.
Final drive assembly	Inspect for damage. Repair as required.