Surging (Speed Change) - Dodge D250 1990 Service Manual

Troubleshooting Logic
Page§A-10
Base Engine Components
DODGE Turbo Diesel
Surging (Speed Change)
Cause
Correction
If the Condition Occurs at Idle, the Idle Adjust the Idle.
Speed is Set Too Low for Accessories
OK
High Pressure Fuel Leak
Inspect/Correct Leaks in the High
Pressure Lines, Fittings and Delivery
Valve Sealing Washers.
Inspect/Correct Leaks in the High
Pressure Lines, Fittings and Delivery
Valve Sealing Washers.
OK
One or More Injectors Worn or
Check/Replace the Injectors.
Malfunctioning
OK
Malfunctioning Injection Pump Replace the Pump. Malfunctioning Injection Pump Replace the Pump.