help asap plz
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Senior User
Joined: Jan 2010
Posts: 240
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From: blue springs Missouri
help asap plz
Okay so did the 6637 mod to day left the air charge sincere hanging the temp all day was about 40 as the high truck ran fine all day no problem now tonight its in the low 30 and at first the truck ran good all of a sudden it blew the pcm fuse I replaced it started the truck drove maybe 50ft and it shut off checked the fuse still good so I waited 5min truck fired right up drove maybe 50ft did the same thing again and parked it for about 2 hours and it did the same thing again. What's the deal
Lead Driver
Joined: Jan 2007
Posts: 6,708
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From: Kiowa CO
Is it #30 in the fuse block? If that's the number, your fuel bowl heater is shorting out and it's blowing that fuse which is tied to your PCM thus causing your truck to die in its tracks. You need to unplug your heater connection from the rear of the fuel bowl, replace fuse and you should be up and running. You really don't need the heater, honestly. Here's a pic of the connection: http://www.dieselorings.com/docs/FuelBowlRebuild.pdf
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Senior User
Joined: Jan 2010
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From: blue springs Missouri
It don't blow the fuse every time. It now runs fine in park put it in drive take off and it shuts off. In lets say 5min try to restart the truck and it runs till you try to take off
Lead Driver
Joined: Jan 2007
Posts: 6,708
Likes: 5
From: Kiowa CO
You need to post up the number of the fuse and we can cross reference it to a manual of your truck model year - BTW - what is your truck model year? Once you know what that fuse is tied to, you can pinpoint where a short is happening.
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Senior User
Joined: Jan 2010
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From: blue springs Missouri
R2000 7.3 2wd and its the 4th maxi fuse in the fuse block under the hood. Sorry I'm doing all this from my cell phone
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Lead Driver
Joined: Jan 2007
Posts: 6,708
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From: Kiowa CO
Hmmm, my 02 has all the fuses under the dash so I can't help you identify it. Here's a bump and maybe someone with a '00 model can help out more.
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Elder User
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From: Fort Campbell, KY
Post Fiend
Joined: Nov 2007
Posts: 9,549
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From: Payson, AZ
You need to download an owner's manual from this site
https://www.fleet.ford.com/maintenan...ls/default.asp
Here are the under hood fuse box designations. This way you can tell us just which fuse is blowing or blew.
The yellow highlighting was for my use.
Check Under Dash fuse #30 in particular.
Edit: MY next post will have the rest of the under hood fuses. I screwed up the attachment order.
https://www.fleet.ford.com/maintenan...ls/default.asp
Here are the under hood fuse box designations. This way you can tell us just which fuse is blowing or blew.
The yellow highlighting was for my use.
Check Under Dash fuse #30 in particular.
Edit: MY next post will have the rest of the under hood fuses. I screwed up the attachment order.
Elder User
Joined: Dec 2009
Posts: 864
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From: Fort Campbell, KY
You may have a short in your trailer harness out back... try turning on your lights and see how it runs during the day.