Glow plug issues today

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New problem with my truck today. Worked fine yesterday. Today I went out, tried to start it, glow plug light came on and went off withing about 1 sec. Now gow plugs are not comming on. I found a blown maxi fuse in the engine bay fuse box. Position 22 I believe, it was a 30 amp. I cant seem to find if thats for the glow plugs or not. I put in another and it blew right away. What gives.

[Jarrod B]

what is the truck specs like year and engine

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1997 7.3L

I put another fuse in, and it blows as soon as the glow plug light comes on. I disconnected the wires off the glow plug relay, that goes to the glow plugs and it still blows.

[donald lorbeske]

fuse #22 is for the glow plug control mod and fuel line heater i had a fuel bowl heater keep blowing my pcm fuse the way i found the heater was broke i put ajumper wire in the fuse slot and watched were theres smoke theres fire that was on my 97

[black99stroker]

There should be a white connecter on the back of the fuel filter housing which is for the fuel bowl heater, unplug it, replace the fuse and it should start up.

[donald lorbeske]

if the fuel heater is blown it shuold be replaced i let mine go for a long time because you realy dont need it and the condesation geled up and corosion ate a hole in my bowl

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ha ha I came back to say I figured it out, it was the fuel heater and like 3 people said to check it. I looked at wiring diagram and saw that it draws off the same fuse so I disconnected it and no more fuse blowing.

[RC51]

Originally Posted by donald lorbeske

fuse #22 is for the glow plug control mod and fuel line heater i had a fuel bowl heater keep blowing my pcm fuse the way i found the heater was broke i put ajumper wire in the fuse slot and watched were theres smoke theres fire that was on my 97

X2 look at that.

[CHUCK]

The small wire element of the actual fuel heater, look in the bottom of the fuel bowl, half moon shape, soldered in 3 places, Most likely broke loose and is grounding out against the side of the bowl. Causing the fuse to blow. Replace the fuel heater element. There is an upgrade for the OBS fuel bowl heater so you can use one from an 99-2003 7.3. Its actually a better unit than the replacement. Should be a write up somewhere on the org. Good Luck.

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Dam, I finally today got around to replacing the fuse. And now the battery light is on all the time. Its charging fine at 14.5v Could it have blown the diode in the alt?? Wouldn't think it would do that, I've checked all other fuses and all are good. WTF??