No start, no wait to start light
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4th Gear
Joined: May 2025
Posts: 4
Likes: 1
No start, no wait to start light
My truck died on me and wouldn't restart, got it towed home. I have unplugged the fuel filter heater and replaced the fuses associated with it. After unplugging the LDM and checking for the WTS light, the light comes on, but turns off very quickly. I'm not sure what to test from here. Any help would be greatly appreciated.
Cargo Master
Joined: Aug 2003
Posts: 2,332
Likes: 443
From: Eastern Washington
Is the fuel over 1/4 tank? Oil full? Does the tach register when you crank it? You can try unplugging the ICP and see if it fires...
Might be time to get some sort of diagnostic equipment. Forscan or forscan lite are the cheapest ones out there and plenty of people on this forum are familiar.
Might be time to get some sort of diagnostic equipment. Forscan or forscan lite are the cheapest ones out there and plenty of people on this forum are familiar.
Cargo Master
Joined: Aug 2003
Posts: 2,332
Likes: 443
From: Eastern Washington
There are some variances thru the years as far as fuse # and wires on the flow chart, some values might be for a newer or later model.
Confirm your looking at the right thing before condemning anything.
As an example, I believe the ECM/Fuel Bowl heater fuse on our year is #30, but the flow chart lists it as #22. I think #22 is an earlier year, or at least a different year.
Regardless of the year, the 7.3 needs the same five things to run.
Good luck and report back with your findings, theres lots of smart people on this forum.
Confirm your looking at the right thing before condemning anything.
As an example, I believe the ECM/Fuel Bowl heater fuse on our year is #30, but the flow chart lists it as #22. I think #22 is an earlier year, or at least a different year.
Regardless of the year, the 7.3 needs the same five things to run.
Good luck and report back with your findings, theres lots of smart people on this forum.
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Lead Driver
Joined: Aug 2022
Posts: 5,114
Likes: 1,425
From: Oologah, OK
My truck died on me and wouldn't restart, got it towed home. I have unplugged the fuel filter heater and replaced the fuses associated with it. After unplugging the LDM and checking for the WTS light, the light comes on, but turns off very quickly. I'm not sure what to test from here. Any help would be greatly appreciated.
it smells like the fuel bowl heater shorted out, and blew the fuse again.
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