2008 Lincoln P0128: What It Means & Is It Safe to Drive?
P0128 on the 2008 Lincoln: Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature). Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
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What this code means
The engine is not reaching normal operating temperature in the expected time. Usually a stuck-open thermostat.
Common causes on the 2008 Lincoln
- Thermostat stuck open
- Coolant temperature sensor fault
- Low coolant level
Symptoms
- Check Engine Light
- Heater may blow cold
- Poor fuel economy
- Temperature gauge stays low
Typical fixes
- Replace thermostat
- Replace coolant temperature sensor if faulty
- Refill coolant and check for leaks
Repair cost range
For a 2008 Lincoln, repairs for P0128 typically fall between $100 and $350, depending on the root cause and labor rates in your area.
Known issues on Lincoln
Lincoln P0128 shares Ford's thermostat housing issues on EcoBoost platforms. On MKZ and MKC with the 2.0T EcoBoost, the integrated thermostat housing fails as a unit—replace the full housing assembly.
Most commonly affected models
MKZ 2010–2016MKC 2015–2019MKX 2007–2015