PO674 Code

jb23

jb23

New member
May 5, 2008
18
0
0
ILL
Got Glow plug #4 cylinder circ failure
Is this a bad glow plug or stuck on never had any problems I think truck had update when I got it new. Any one had this issue
 
C

Cougar281

Well-known member
Sep 11, 2006
1,827
264
83
St Louis, MO
It's probably a bad plug. I have #5 disconnected (it wouldn't come out and bent when I tried to do a compression test) and it throws a P0675 when it's cold enough to actually use the plugs. Disconnect the wires from #4 & one or more other plugs and use a multimeter to read the resistance of them. If #4 is way different from the other(s), such as infinite resistance, then you know it's bad.
 
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