[iwishihad1]

hey everybody

well i myself am a jeep buy along with most of my friends. but heres the deal. we found a late 80s bronco 2 for sale for 200 bucks:shocked

so me and 2 other guys went out tonight to try to get it started. well the battery was dead, even jumping didn't work, so we got my brand new battery and tried it. fired up and ran like a CHAMP..for about 2 mins. it would rev from idle to the moon without the slightest sputter. but then after 2-3 mins it started sputtering, and died. if you let it sit for a while it will fire back up, but do the same thing. me and my friends are pretty mechanically inclined, but this ones got us stumped. were just going to buy this and flog it so we dont damage our daily drivers.

thanks:thumbup

 

[88_Bronco_4x4]

had the same problem with my 78 280z. it'd been parked in a field for 14 years and at first it would only run until it got warmed up, then die. I just cleaned up a bunch of electrical connections, made sure the spark plug tips were clean, and bought a new battery. As of right now it starts up and runs for as long as I want it to, but I'm not sure what exactly I did to fix it. If I had to guess I'd say what made the biggest difference was cleaning off the fusible link connections that led to the fuel injection computer/module/thingy.
another thing that might possibly help is to keep running it as much as you can to try to work the old fuel out of the lines.
Just some suggestions, but don't put too much faith in me, I'm still new to all this.

 

[kf4amu]

Fuel pressure dropping?

 

[Deathtrap]

:stupid Sounds like fuel pressure to me

 

[iwishihad1]

any ideas on how to fix that:banghead

 

[ScorpionBoy]

any ideas on how to fix that:banghead

just the usual. check your filter first (prolly just replace it) then move to the next piece of the puzzle.

 

[iwishihad1]

ok.. could somebody tell me how hard it is to replace
1) the fuel pump, and approx cost
2) fuel filter, and approx cost

thanks:thumbup

 

[monkeyhouse]

www.advanceautoparts.com for the cost questions.

the filter is easy as pie.
the pump, depends on where its located. usually not to hard.

 

[den94bronco]

fuel pump is in the tank

 

[davesanrn]

does it have oil pressure/oil in it? Some Fords have a switch which kills the fuel pump if there is on oil pressure.

 

[kf4amu]

any ideas on how to fix that:banghead

Well check it first. Harbor Freight sent me an email ad for a fuel pressure gauge, all the fittings etc, for 7.99. Hook it up to the fuel rail and see if the pressure drops as the motor dies.

If the pressure remains steady, its not fuel related and you've ruled it out.

Do that first, then post back here.

 

[qcbronc]

ok.. could somebody tell me how hard it is to replace
1) the fuel pump, and approx cost
2) fuel filter, and approx cost

thanks:thumbup

What happened to being mechanically inclined...?:goodfinge Just playin bro.

 

[Deathtrap]

fuel pump is in the tank

on my old 86 B2 it was on the frame rail right beside the fuel filter