P0119 — Engine Coolant Temperature Sensor Intermittent
What it means: Engine Coolant Temperature Sensor Intermittent.
How serious / can you keep driving: Caution. Limp to the next safe stop.
Check first: Inspect ECT connector
Don't risk it — look up listed providers near you and give them this code when you call.
Listed providers nearest Albuquerque, NM
Closest first. Tell them P0119 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 Albuquerque, NM · (505) 226-2125
- 0.0 mi away — based in Albuquerque, NM · (505) 823-9696
- 0.0 mi away — based in Albuquerque, NM · (505) 220-3541
Seen on: Heavy Truck
What P0119 means
Engine Coolant Temperature Sensor Intermittent. Common causes: Intermittent ECT signal.
How serious is it?
Caution. Limp to the next safe stop.
Most likely causes
- Intermittent ECT signal
- Loose connector
- cracked sensor body
First moves (roadside)
- Inspect ECT connector
- wiggle test harness
- replace sensor
FAQ
Engine Coolant Temperature Sensor Intermittent. Common causes: Intermittent ECT signal.
Caution — Limp to the next safe stop.
The most common cause is: Intermittent ECT signal. Other possibilities include Loose connector; cracked sensor body.
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 P0119, 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 Range (P0116) · Cooling
- Engine Coolant Temperature Sensor Circuit Low (P0117) · Cooling
- Engine Coolant Temperature Sensor Circuit High (P0118) · 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.