yusuebronko2_86
New member
Ok, for some time now i've been gone from the site on the count i haven't had to bask in the knowlege of my fellow ford gurus. But here's the sh** kicker....
I have a '90 F150 351 EFI (i know, not a bronc, but oh well....) The truck has major balls, enough to spin 35x12.50's at the drop of a hat completely through 1st and into 2nd, thanks to a 270 crane cam and a set of heddman shortys through a 2.5 true dual.
The problem is fairly recent. Yesterday, the truck started fine in the morning, drove great, went on break at 10am, hauled major 4ss, went to lunch, drove the same, filled up, went back to work, all driving like normal. Come time to go home, it started running like crap. No power, acts like there's no fuel, smell gas, sputters, dies, backfires, etc. At night, after adjusting the timing (the old man thinks that is always the problem, so i just shut him up) the damn thing overheated and spewed all my new fluid all over the ground.
Now the truck has had a 160 thermo put in about 3 days ago, but it was running better than ever. The 02 is out of my old bronco 2 (i miss my 86....) that had to be wired in due to ****** wiring. Here in this part of texas, all the old ford trucks have a hot wire to the fuel pump for the ignition, so pulling codes doesn't reveal anything but "circuit open fuel relay".
I'm out of ideas, the TPS and MAP have been replaced, there's no EGR, no cat, new plugs, blaster coil, "new" wires (slightly used bosch 8mm), and it pulls this crap. IT ONLY DOES IT WHEN IT WARMS UP. Fuel pressure is 30-40 psi.
I have a '90 F150 351 EFI (i know, not a bronc, but oh well....) The truck has major balls, enough to spin 35x12.50's at the drop of a hat completely through 1st and into 2nd, thanks to a 270 crane cam and a set of heddman shortys through a 2.5 true dual.
The problem is fairly recent. Yesterday, the truck started fine in the morning, drove great, went on break at 10am, hauled major 4ss, went to lunch, drove the same, filled up, went back to work, all driving like normal. Come time to go home, it started running like crap. No power, acts like there's no fuel, smell gas, sputters, dies, backfires, etc. At night, after adjusting the timing (the old man thinks that is always the problem, so i just shut him up) the damn thing overheated and spewed all my new fluid all over the ground.
Now the truck has had a 160 thermo put in about 3 days ago, but it was running better than ever. The 02 is out of my old bronco 2 (i miss my 86....) that had to be wired in due to ****** wiring. Here in this part of texas, all the old ford trucks have a hot wire to the fuel pump for the ignition, so pulling codes doesn't reveal anything but "circuit open fuel relay".
I'm out of ideas, the TPS and MAP have been replaced, there's no EGR, no cat, new plugs, blaster coil, "new" wires (slightly used bosch 8mm), and it pulls this crap. IT ONLY DOES IT WHEN IT WARMS UP. Fuel pressure is 30-40 psi.