Reply to thread

Message: [QUOTE="Cold Roller, post: 1558226, member: 9551"] Having just fixed a similar issue (identical) that didn't code initially (on 2,4,6,8), I replaced the GPCM and all is well. Before it coded, I checked the resistance from the plug to ground and all were 1.1 ohm (good 0.5<>1.9 ohm), so I knew each GP and the wiring to the GPCM was good. Just before getting the new module it coded, confirming the diagnosis. Being that it seems you did everything correctly, test the 4 glow plugs from the harness. If they test "pass", it is more than likely that the GPCM you subbed in was bad as well; or, did you grab the first one, thinking it was the new/reman/recycled one? If you have AE or IDS, you can run a glow plug system diagnostic that will tell you what you kind of already know - the GPCM is probably bad. It is highly unlikely all 4 GPs go out at the same time, unless the harness is severly damaged or cut. [/QUOTE]

Verification

Random media

Truck_2

Hydroboost and power steering

IMG_20150829_231111794

303-black-Hoodie

sst

dg_800

426019_3095285348722_1259446829_n

The Truck

20170122_112557

no limit engine bling

Latest posts

T
B&W hitch and shock removal
- Latest: TexMac
- Yesterday at 2:48 PM
2017+ 6.7 Aluminum Super Duty
6
ISSUES WITH CHOATES WARRANTY
- Latest: 6.7powersmoke
- Yesterday at 2:12 PM
1999-2015 Superduty Series General
Truck slipping into 4th
- Latest: Sterling6.7
- Friday at 7:18 PM
6.7 Tech
Do not recommend Choate Engineering
- Latest: DEEZUZ
- Apr 23, 2025
Newly Enlisted
A few turbo questions and a rant
- Latest: ghohouston
- Apr 23, 2025
7.3 Aftermarket

Members online

Total: 627 (members: 2, guests: 625)

Top