Fuel Problem?
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Fuel Problem?
I have a newly put back together Bronco II that I had torn apart to replace the crank and cam shaft bearings and now I think I'm having some sort of fuel problem...
Sitting in park and pushing on the accelerator everything is fine. When in Drive or over Drive, pushing on the accelerator causes the engine to bog down and "jump" or "skip" like I'm running out of gas, reving the RPMs and causing the vehicle to lurch. Like a sputter almost. This is especially noticeable going uphill. Lightly pushing on the accelerator seems to remedy the situation, but any gas and I'm sputtering. Not sure if it's air-to-gas ration problem? fuel filters? although they should be new? Intake?
PLEASE HELP.
Sitting in park and pushing on the accelerator everything is fine. When in Drive or over Drive, pushing on the accelerator causes the engine to bog down and "jump" or "skip" like I'm running out of gas, reving the RPMs and causing the vehicle to lurch. Like a sputter almost. This is especially noticeable going uphill. Lightly pushing on the accelerator seems to remedy the situation, but any gas and I'm sputtering. Not sure if it's air-to-gas ration problem? fuel filters? although they should be new? Intake?
PLEASE HELP.
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From: UT
If I thought it was a fuel problem, the first thing I'd do would be to put a fuel pressure gauge on it. See if fuel delivery keeps up with engine demand (namely: see if the pressure drops off) as engine load increases.
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...no pressure on gauge when key is turned on and gauge is hooked up, after relieving the pressure. do i need to plug everything back in for the pressure to kick in? i don't know if the pump automatically turns on with the key or not? i would assume everything has to be plugged back in, but the manual doesn't cover that?
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what sort of pressure should i be looking for?
and how will i know if it is keeping up with the load? should i drive it around with the gauge attached and see what the readings are?
do i need to plug everything back in for the pressure to kick in? i don't know if the pump automatically turns on with the key or not? i would assume everything has to be plugged back in, but the manual doesn't cover that?
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so i had the coil wire and electrical pump motor connection disconnected to 'relieve the pressure' from the fuel lines. however, in the middle of that i was advised to check the filters first, so i started in on that...spilled a ton of fuel in the process. the 86 has a goofy reservoir with a disc shaped filter the seats in a canister and is a pain to replace, though i think i finally got it.
also, everybody keeps telling me there is an in-line filter that i can't seem to find. know anything about that? one guy mentioned that if i got an early 86, late 85 i might be in a transition window without? either way, i don't think it's there and i'm hoping that other one will help my problem out. any new advice?
also, everybody keeps telling me there is an in-line filter that i can't seem to find. know anything about that? one guy mentioned that if i got an early 86, late 85 i might be in a transition window without? either way, i don't think it's there and i'm hoping that other one will help my problem out. any new advice?
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...still not working
i have now replaced the round filter sitting in the 'canister' reservoir and been through two or three o-rings, i even went to a Ford dealership to get the 'right' one. didn't work. i've been using the suggested round o-rings and they don't seem to be working. i've been told by ford mechanics that this unit was quickly phased out and doesn't serve as a filtering unit in later models. mine was made 08/85, do i might fall in that strange window where this 'filter' was briefly used. should i replace the whole unit? or try another o-ring, maybe a flat, square, circular ring? i can't get this to stop leaking and am close to just buying the 'new' unit that doesn't serve this same function but replaces it. ? this is such a pain for just a filter.
also, where are my filters? other than this doughnut shaped one that i'm struggling with, there is supposed to be another in-line that i still can't find, and don't think is there? anybody know the truth behind this make? seems the only filter is this pain in the butt and a screen in the tank? do i need to install an in-line and if so, where? between the tank and pump? pump and engine? please help. this is frusterating.
also, where are my filters? other than this doughnut shaped one that i'm struggling with, there is supposed to be another in-line that i still can't find, and don't think is there? anybody know the truth behind this make? seems the only filter is this pain in the butt and a screen in the tank? do i need to install an in-line and if so, where? between the tank and pump? pump and engine? please help. this is frusterating.
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fuel filter
I've owned an 86,87 & 88 they all had the cannister filter plus a metal cannister filter on the passenger side frame rail up by the engine. I'ts a little hard to get to, but not to bad uses plastic clips on both ends. Pull them out, release fuel pressure first and pull the lines off. The filter is held on with a clamp.
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