WORKHORSE CUSTOM CHASSIS
Service Manual
2007 W Series
SECTION
7.2
PAGE
214
Automatic Transmission – Allison
2007 W Series Chassis
© 2006 Workhorse Custom Chassis — All Rights Reserved
WSM082106
DTC P0736
Step
Action
Value
Yes
No
6
NOTICE:
Do not perform a full RPM stall test in reverse range, or vehicle
Do not perform a full RPM stall test in reverse range, or vehicle
damage may occur.
damage may occur.
1. Apply vehicle brakes and select REVERSE.
2. With the engine at idle and REVERSE range attained, turbine speed
should go to zero.
3. Using the scan tool, monitor turbine speed while increasing engine
speed to 1,000 RPM.
Did turbine speed remain at zero?
—
Go to Diagnostic
Aids
Go to Step 7
7
1. Remove the transmission oil pan. Refer to Automatic Transmission
Fluid/Filter Replacement .
2. Inspect for contaminated fluid and excessive material in the pan.
Is the fluid contaminated or excessive material found in the pan?
—
Go to Step 8
Go to Step 9
8
Remove the transmission for overhaul or replacement. Refer to Transmission
Replacement .
Did you complete the replacement?
—
Go to Step 11
—
9
Inspect for a stuck or sticking pressure control valve. Refer to Control Valve
Body Cleaning and Inspection .
Did you find and correct a condition?
—
Go to Step 11
Go to Step 10
10
Replace pressure control solenoid 2 (PCS2). Refer to Control Valve Solenoid
Replacement .
Did you complete the replacement?
—
Go to Step 11
—
