the 1028 is trouble code for thermostat low temp check temp gauge for low temp replace thermostat
P1028 Error code means the coolant temperature is lower than specified by Ford. Now the trick question becomes: what SHOULD the temperature be?
Trouble code P0506 means:Idle control system RPM lower than expected
Trouble code P0440 means:Evaporative emission control system malfunction
Engine coolant Sensor is bad. I have the same error on my 2005.
2004 gmc envoy with code p0128
Random Misfire.
misfire # 1 cylinder
Trouble code P0606 means:PCM processor fault Might have to replace the PCM
Code B0265
Shift Solenoid A Error
Where to hook code reader 2002 envoy
my 2006 galant is doing the same thing did you find out what was causing this?