HELP!!!
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Senior User
Joined: May 2012
Posts: 119
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From: Lansing, KS
HELP!!!
First off, I'm running a 99 F-350 7.3L CC LB. I haven't really done much in the way of mods, it has a chip (TS I believe, it was in it when I got it) 50 cent mod and a custom cold air intake. I had to leave for the weekend and I left the truck at home. I didn't plug it in because it was supposed to be somewhat warm all weekend. I got home early evening and when I went to start it everything looked normal and seemed normal but it wouldn't start. I had the wait to start light as always until after about the third try. The light stopped coming on and the truck will turn over but it doesn't even try to catch and start. It just keeps turning over. I'm not sure if it's related or not but the OD off light on the shifter is on and won't go off. I didn't have a lot of time to trouble shoot this morning, all I did was disconnect the batteries for a little bit and try again. It had been plugged in all night as well so I know it wasn't cold. This is about the worst timing, I still have things to get fixed before the snow gets here. Can anyone help me out with this one?
Molon Labe
Joined: Dec 2006
Posts: 5,272
Likes: 1
From: Alaska
Someone with more knowledge will hopefully come along, but if the WTS light isn't coming on I believe your fuel bowl heater may have shorted out.
I also believe your tach wont move while cranking if this is true. Try unplugging your fuel bowl heater (back of the bowl) and check the fuses.
I also believe your tach wont move while cranking if this is true. Try unplugging your fuel bowl heater (back of the bowl) and check the fuses.
Lead Driver
Joined: Jul 2003
Posts: 7,406
Likes: 52
From: Wheatland, Mo
WHat Frank said....
Check the #30 fuse. If it is blown then unplug the fuel bowl heater, replace the fuse and try again.
Also make sure that your batteries have a MINIMUM of 10.8 volts or... it will crank but not start. This is 10.8 with the key in the ON position and the glow plugs getting power.
Check the #30 fuse. If it is blown then unplug the fuel bowl heater, replace the fuse and try again.
Also make sure that your batteries have a MINIMUM of 10.8 volts or... it will crank but not start. This is 10.8 with the key in the ON position and the glow plugs getting power.
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Senior User
Joined: May 2012
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From: Lansing, KS
Thanks guys, looks like a good starting point and I am hoping for a quick easy fix so I can move on to some other things that need to be done. I will report back just in case anyone else wants to know.
Senior User
Joined: May 2011
Posts: 454
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From: Portland, OR
If you don't have any tach movement while starting try your spare CPS, assuming you have one of course.
Can you hear the fuel pump going when the key is turned on? Any reason to suspect batteries not providing enough amperage?
Can you hear the fuel pump going when the key is turned on? Any reason to suspect batteries not providing enough amperage?
Senior User
Joined: May 2011
Posts: 454
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From: Portland, OR
If the #30 fuse is blown definitely check the engine harness for rubbing over the DS VC and also at the DS shock mount. That one got me a couple years ago, but I wasn't lucky enough to be parked at home.
If it is that, it'll blow as soon as the key is turned to the on position, but it'll still crank all day.
If it is that, it'll blow as soon as the key is turned to the on position, but it'll still crank all day.
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
Like they ^^^ said, first suspect is fuel bowl heater.
This is on the list though, since you said OD lite:
https://www.ford-trucks.com/forums/1...tch-short.html
This is on the list though, since you said OD lite:
https://www.ford-trucks.com/forums/1...tch-short.html
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Senior User
Joined: May 2012
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From: Lansing, KS
Once again you guys were right on the money, there was a 30 amp fuse blown. I disconnected the fuel bowl heater and replaced the fuse and she fired right up. Thanks again for bailing me out of something that would have probably taken me all day to figure out. This leads me to another question, or two. What would be causing the fuel bowl heater to short and blow this fuse? What kind of negative effects can I look forward to if I leave the heater unplugged?
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Laughing Gas
Joined: Aug 2010
Posts: 1,098
Likes: 6
From: Ventura co.
A lot of people here just un plug them. Mine did the same and i un plugged mine a long time ago. We don't get cold weather here so it's not a problem for us.
Clay at ruffraff sells them if your in the snow belt.
Sometimes for no reason they just short out.
Clay at ruffraff sells them if your in the snow belt.
Sometimes for no reason they just short out.
Molon Labe
Joined: Dec 2006
Posts: 5,272
Likes: 1
From: Alaska
When I rebuilt my fuel bowl I eliminated the bowl heater. From what I've read its pretty useless in the first place, but others may argue that.
The only side effect is your " water in fuel " light won't work. I just make sure to drain the.bowl for a few seconds each month ( if I remember)
Tape over the plug to keep it from shorting, and you'll be good to go.
Glad it was a simple fix
The only side effect is your " water in fuel " light won't work. I just make sure to drain the.bowl for a few seconds each month ( if I remember)
Tape over the plug to keep it from shorting, and you'll be good to go.
Glad it was a simple fix
Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
When I rebuilt my fuel bowl I eliminated the bowl heater. From what I've read its pretty useless in the first place, but others may argue that.
The only side effect is your " water in fuel " light won't work. I just make sure to drain the.bowl for a few seconds each month ( if I remember)
Tape over the plug to keep it from shorting, and you'll be good to go.
Glad it was a simple fix
The only side effect is your " water in fuel " light won't work. I just make sure to drain the.bowl for a few seconds each month ( if I remember)
Tape over the plug to keep it from shorting, and you'll be good to go.
Glad it was a simple fix
If so, you can plug it back in, and have the WIF indication still.
Molon Labe
Joined: Dec 2006
Posts: 5,272
Likes: 1
From: Alaska
I rebuilt three fuel bowls, I guess the one I left unplugged wasn't mine.
Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
First off, what does this have to do with fuel bowl heaters/or PCM power and the OP's post.
Secondly, Why? What are your goals, and why not start a thread for many peoples opinions rather than calling myself or anyone else out specifically?
Not trying to be rude, but I'm no expert on the subject except in theory really, not having run a ton of options/setups like others have.
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