Engine died, no WTS light - Ford Powerstroke Diesel Forum
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Old 11-09-2013, 04:51 AM
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Engine died, no WTS light

Had the truck plugged in last night, started it up this morning after a couple of tries. Had the truck idling in the driveway getting ready to head out on a trip, started down the street and made it about 5 houses down before it shut off. Now I don't have a WTS light and it won't start. Cranks fine. Checked the glow plug relay and it seems to be ok. I was reading that I should be getting 12v to the big terminal and 8v to the small ones. I'm getting 12v on all of them. New to the diesel game and not really sure what the problem is and it's too cold for me to keep standing in front of my neighbors house cussing it. Recently replaced the #22 fuse under the hood. That was the first thing I checked when this happened. All fuses under the hood seem to be ok. Not sure if there's another relay for the glow plugs? Really need some help here. Thanks in advance.
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Old 11-09-2013, 05:16 AM
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You're thinking the GP system because you don't get the WTS? That's usually Not the case....

What the lack of a WTS light indicates is that your PCM isn't running. In the Vast majority of cases this is about a blown fuse (especially this time of year, as it get colder and your Fuel Heater comes on) BUT, you haven't told us anything about your truck!

You don't think they're ALL THE SAME - right?

What yr? What mdl? (it's not a Ranger I'm guessin') If you blew #22 under the hood I'm thinking it's an OBS maybe???

If so, unplug the fuel heater, at the bottom of the Filter Housing, and replace #22 Again (even if it looks OK). Then if you still don't get a light, with a light or meter go over All the other fuses, I bet you find that will fix it
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Old 11-09-2013, 10:00 AM
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Sorry I was out in the cold working on this thing with only 3hrs of sleep lol its a '97 F350 CCLB. 170K miles.
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Old 11-09-2013, 11:21 AM
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Ok... rechecked everything... #22 was blown so I went and bought a replacement, put it in and it blew again. I'm assuming it has something to do with the fuel heater? Even if I unplug it, will it just blow the fuse again if I plug it back in?
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Old 11-09-2013, 11:52 AM
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Unplugged the fuel heater wire on the drivers side of the bowl. Replaced the fuse and the WTS light is back. What is causing it to short out? I don't want to plug it back in and have it blow another fuse. Running out of daylight so I'd like to get this fixed asap.
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Old 11-09-2013, 12:07 PM
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Here's what happens, your Fuel Heater Element has rotted-out over the Summer. You haven't had it turned on yet and, now that it's cold, it got activated and is shorted. This blows that fuse (#22) and the PCM is also supplied by it so you don't start.

Here's what most people do about it,,,, Nothing
You probably don't ever need the Fuel Heater anyway (you don't live in Alaska do you?). Ford puts them in for the very Worst of conditions, stuff 99% of us don't ever see. So, if you're in the lower 48 of the US, you can just leave it unplugged.

You might also consider replacing it, I mean, Why Not???. It's pretty easy to do, just next time you change the Filter you unscrew from the bottom of the bowl and put the new one in. - Up to you
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Old 11-14-2013, 08:19 AM
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Ok well here's a little update... unplugged the bowl heater the other day and got the truck limped back up to the house. Haven't messed with it until today. Went to start the truck up to give it a little test drive and the fuse was either already blown or blew as soon as I turned the key on. The wire for the bowl heater had a break in it so when I unplugged it I went ahead and cut the wire at that spot. My plan was to just route it over the top of the bowl to avoid any hassle in the future. Ran down to Autozone and picked up a fuse, came home and POP.....there went another $5 down the drain. So I'm starting to rule out that it's the bowl heater wire. But I'm not sure as to what else it could be? Any help is appreciated.
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Old 11-14-2013, 08:27 AM
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And I'm sure this doesn't have anything to do with it but these problems all started happening the day after I put a new intake/filter on. I zip tied the air sensor from the factory air box to the fender. Like I said, I'm 98% sure that has nothing to do with it though.
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Old 11-14-2013, 09:10 AM
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Also...there is a plug right next to the turbo...what is this for? Thinking it's the EBPV. It looks like it ties into the GP harness? I realized that I unplugged the filter restriction sensor and not the heater plug. Stupid me for that mistake. I'm assuming that the EBPV being unplugged isn't a problem. Guess I'm back to unplugging the bowl heater. Anybody had problems getting that connector off?
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