I give up
Moderator
Joined: Jun 2003
Posts: 3,547
Likes: 71
From: Calhoun GA
OK, I had a very similar problem on an 88 I had several years ago. Everything inside worked with the key on, and it would also crank, but it wouldn't run. To make a long story short, there was a black wire that went to the negative terminal of the battery. That wire broke, and my truck died instantly. It took me a little while to find it. Once I repaired it, my truck fired right up.
Good Luck!
Good Luck!
Postmaster
Joined: Aug 2004
Posts: 2,908
Likes: 2
From: West Mansfield, Ohio
Its supposed to be hooked into the terminal I believe, but mine was actually cut off and hooked onto the nut on the terminal with a wire connector. Its about a 10 gauge stranded copper wire that goes to the terminal (or is supposed to) lol
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Senior User
Joined: Apr 2005
Posts: 142
Likes: 0
Hi ya i found that one took it off but no change... when i turn the key i dont get the click sound of the pump at all... it will crank but not start i have tryed to get code with key on not running but my code reader gives me nothing...... by morning this thing may be on ebay if anyone wants picsa and info let me know
Postmaster
Joined: Aug 2004
Posts: 2,908
Likes: 2
From: West Mansfield, Ohio
Dont get rid of er just yet. This has to be somethin simple. Trace that black wire goin to the negative terminal down to the end. See if it has been hit or cut in half somehow or somewhere....
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Senior User
Joined: Apr 2005
Posts: 142
Likes: 0
Hi well its real strage do to the fact a couple days ago it ran fine started fine and now this stuffffffffffffff anyway this is the last truck i will ever tune up it ran fine till i gave it some new parts now it dont know what to do lol anyway with all the help and all that i have done i am seriously looking into just finding a new old truck lol....
thanks for trying... if you have any more ideas let me know!!!!
Thanks again!
James
thanks for trying... if you have any more ideas let me know!!!!
Thanks again!
James
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Senior User
Joined: Apr 2005
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Hi very true.... however this thing is on my mind night and day i have had only little sleep last couple days trying to figure this out the whole thing is getting stupid to me now..................
Postmaster
Joined: Aug 2004
Posts: 2,908
Likes: 2
From: West Mansfield, Ohio
Quicklook is right. Anytime I'm in a pickle and somethin stupid aint makin sense, I'll sit down and have a beer, or even go to bed and wake up in the middle of the night thinking of the solution lol. Give er a try.
Fleet Owner
Joined: Aug 2005
Posts: 23,666
Likes: 301
From: Easton,Ks
Originally Posted by 88fordf150
hummmm a black wire to the neg side of batt? i will look at it and see if i can find a wire like that
Do you have spark?
If you do not have spark or fuel then you have lost the PIP coming from the Distributor/TFI.
Freshman User
Joined: Apr 2005
Posts: 31
Likes: 0
From: Midland, MI
No the computer doesn't control any accessories only the air/fuel ratio and timing for the engine. You have and electrical problem. It could be something as simple and a shorted wire or a bad ground. You need a Haynes manual to trace the wiring. The problem has to be simple but you need to know what you are looking for and the Haynes manual will help you.