Originally Posted by
charlie90262
im getting a check engine light code p0117 i changed thermostat
I'm not sure changing the thermostat will fix your check engine light. The P0117 is the computers way of telling you that the voltage on the ECT (Engine Coolant Temperature) sensor circuit was too low (i.e, less than 0.2V) for normal operation. That would indicate a temp of over 250 degrees F. Did your Navigator overheat at some time?
Originally Posted by
charlie90262
i changed thermostat and 2 sensors one in back of pass hed and the other one next to the themostat .
Sounds like you changed both the CHT (Cylinder Head Temperature) sensor as well as the ECT (Engine Coolant Temperture) sensor.
Originally Posted by
charlie90262
cooling gauge goes half way and then it just dies
Could you elaborate on what you mean that it 'just dies'?
Originally Posted by
charlie90262
auto zone gave me this sensor part number # SU8781 its lite brown with 2 wire clip
Did auto zone say what kind of a sensor it was?