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Eric, Automotive Repair Shop Manager
Category: Ford
Satisfied Customers: 29728
Experience:  Automotive Repair Shop Manager, Technician
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P1299 Cylinder Head Over Temperature Protection Active ford

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P1299 Cylinder Head Over Temperature Protection Active ford f150 light is on where is local,
and how do i replace it or enable it



This code indicates that the engine cylinder head temperature sensor indicates the truck is overheating and going into a fail safe strategy. IBelow is a list and description of the trouble code. You need to first check the coolant level, if it is low then look for a external leak somewhere. If the level is ok then it could just need a thermostat replacement. If the engine actually does not even seem to be overheating or hot then it could be the sensor giving it a false reading.


P1299 Cylinder Head Over Temperature Protection Active

Detailed Description
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.
Possible causes :-
  • Engine cooling system concerns.
  • Low engine coolant level.
  • Base engine concerns.



    Customer: replied 6 years ago.
    where is it located on engine 5.4L



    just behind the alternator on the intake manifold on the 2000 5.4L engine:


    Click image to see an enlarged view




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