bourgeois1269

Advance ran the code for me but the code reader says "no definition, see manual". Has anyone ran in to this code. The engine light just came on 2 days ago and I don't have any problems with my truck as far as I can hear or feel and my gauges are where there suppose to be

Fx4Mark

Sounds like the Cylinder head temp sensor is going. I have mine sitting on my work bench. it's on the passanger side head under the intake manifold.

Cylinder head temp sensor