P0116 — Engine Coolant Temperature Sensor Range
What it means: Engine Coolant Temperature Sensor Range.
How serious / can you keep driving: Caution. Limp to the next safe stop.
Check first: Bleed cooling system air
Don't risk it — look up listed providers near you and give them this code when you call.
Listed providers nearest Baltimore, MD
Closest first. Tell them P0116 and what the truck is doing. RoadService.app lists these providers and does not employ them or carry out the repair.
- 0.0 mi away — based in Baltimore, MD · (443) 680-6789
- 0.0 mi away — based in Baltimore, MD · (410) 544-3888
- 24 hour Mobile Diesel Truck Engine Repair DEF Repairs On Site Services Road Service Laptop Diagnostic Tractors & Dump Truck☎ Call0.0 mi away — based in Baltimore, MD · (443) 591-3631
Seen on: Heavy Truck
What P0116 means
Engine Coolant Temperature Sensor Range. Common causes: ECT sensor reading inconsistent.
How serious is it?
Caution. Limp to the next safe stop.
Most likely causes
- ECT sensor reading inconsistent
- Air pocket near sensor
- sensor failure
First moves (roadside)
- Bleed cooling system air
- replace sensor if reading erratic
FAQ
Engine Coolant Temperature Sensor Range. Common causes: ECT sensor reading inconsistent.
Caution — Limp to the next safe stop.
The most common cause is: ECT sensor reading inconsistent. Other possibilities include Air pocket near sensor; sensor failure.
Limp to the next safe stop. When in doubt, get a qualified mobile diesel tech on the truck before continuing.
Related codes
Codes that commonly appear alongside P0116, or share the same subsystem.
- Coolant level — low (SPN 111 FMI 1)
- Engine Coolant Temperature — Too High (SPN 110 FMI 0)
- Coolant temp sensor — voltage high (SPN 110 FMI 3)
- Coolant temp sensor — voltage low (SPN 110 FMI 4)
- Coolant temperature — moderately high (SPN 110 FMI 16)
- Engine Coolant Over-Temperature Condition (P0217)
- Coolant Thermostat Below Regulating Temperature (P0128)
- Fan 1 Control Circuit Malfunction (P0480)
Same symptom: Running hot
Other codes that show up as coolant temperature climbing or a hot-engine lamp.
- Engine Coolant Temperature Sensor 1 Circuit (P0115) · Cooling
- Engine Coolant Temperature Sensor Circuit Low (P0117) · Cooling
- Engine Coolant Temperature Sensor Circuit High (P0118) · Cooling
- Engine Coolant Temperature Sensor Intermittent (P0119) · Cooling
- Fan drive — voltage high (SPN 647 FMI 3) · Engine
- Fan drive voltage low (SPN 647 FMI 4) · Engine
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.