what does engine code p1299 means? I took my car to auto zone and they say to google the code they didn't have it?

Asked by Jan 16, 2013 at 08:49 PM about the 2003 Mercury Grand Marquis GS

Question type: Maintenance & Repair

3 Answers

93,615

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 - low engine coolant level --- check your coolant reservoir level

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Cylinder Head Overtemperature Protection Active

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Radiator Coolant Level or Low Oil or timing or perhaps a leaking freeze out plug. Any or the failures that can cause a car to overheat should be checked. Sometimes it is two things but then u usually get more than one code.

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