P0750 — Shift Solenoid A Malfunction
Seen on: Heavy Truck
Shift Solenoid A Malfunction. Common causes: Shift solenoid A failure.
Your code rides along, so nearby mechanics see the fault before they quote you.
How serious is it?
Serious. Power derate likely — plan to stop soon.
Most likely causes
- Shift solenoid A failure
- Solenoid failure
- contaminated fluid blocking solenoid
First moves (roadside)
- Check solenoid resistance
- inspect filter and fluid condition
FAQ
Shift Solenoid A Malfunction. Common causes: Shift solenoid A failure.
Serious — Power derate likely — plan to stop soon.
The most common cause is: Shift solenoid A failure. Other possibilities include Solenoid failure; contaminated fluid blocking solenoid.
Power derate likely — plan to stop soon. When in doubt, get a qualified mobile diesel tech on the truck before continuing.
Find a mechanic or related guides
General diagnostic guidance for diesel engines (Cummins, Detroit, PACCAR, Volvo, Mack and more). Not a substitute for a scan-tool diagnosis on your specific truck.