[jesilva]

Can a glow plug be bad and not throw a code

 

[blue99stroker]

Ya they really only throw codes if you have a gpcm in an excursion or Cali truck.

Occasionally thy will throw codes with the standard relay

 

[[email protected]]

Ya they really only throw codes if you have a gpcm in an excursion or Cali truck.

Occasionally thy will throw codes with the standard relay

What he said...

If you have a Federal emissions truck, you will never see a code for glow plugs.