2003 Ford Econoline 350 Code 1299 questions check engine light comes on has code p1258 and p1299. can not find any problem. thermostat and radiator has been replaced temp sensors has been replaced. does not boil over.
what do the codes mean
P1299 - Cylinder Head Over Temperature Protection Active Indicates an engine overheat condition was detected by the cylinder head temperature (CHT) sensor. An FMEM Strategy called Fail-safe Cooling was activated to cool the engine.
Refer to Section 1,
Powertrain Control Software
, for more information on Fail-safe Cooling Strategy and cylinder head temperature sensor.
The temperature sensor is telling the computer that the engine is over the safe limit....Remove it and use an ohmeter to check...odds are...it's going bad!
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