`86 bronco ll
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Senior User
Joined: Sep 2003
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From: miami
`86 bronco ll
just aquired, hasn`t run in three years. Put in new battery. Fired right up, ran for a minute or two, started sputtering, quit running. Put a couple of gallons of gas in the tank, tried to fire but wouldn`t. Runs very well with ether direct to air intake(LOL). Questions: Where is fuel filter,How do I drain tank without pulling?Motors aren`t my thing.Any help most appreciated.
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From: YORK S.C.
the fuel filter is located on the driver side frame rail,just under the drivers seat..be careful taking the canister bowl off it is plastic,do not use pliers,i used a rubber strap wrench and had better results.when you turn the ignition on do you hear the fuel pump run??
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From: miami
`72, yes, fuel pump runs. when I let motor rest a minute and cranked again it would fire and then die. I suspect debris in tank. Can filter be cleaned or do I have to replace? Also can I drain fuel from tank without pulling it out? And thanks for the tip...I`mh#&* with a pair of pliers....
Post Fiend
Joined: Jun 2002
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From: Atlanta GA
> Also can I drain fuel from tank without pulling it out?
I have never tried it, but, I imagine you could drain it by using the in the tank low pressure pump, run it, and drain into a can.
What I have done on many vehicles, get a (think bettle) VW fuel pump, stick 3/8 hose on each end, remove the filler hose from the tank, stick a hose in, use long leads to connect to a battery with a switch. Connect leads, flip the switch. Wait 15 minutes, the tank should be empty. Do not run the pump dry. If you have to prime the pump, just stick your finger over the hose end and let it build pressure.
I have never tried it, but, I imagine you could drain it by using the in the tank low pressure pump, run it, and drain into a can.
What I have done on many vehicles, get a (think bettle) VW fuel pump, stick 3/8 hose on each end, remove the filler hose from the tank, stick a hose in, use long leads to connect to a battery with a switch. Connect leads, flip the switch. Wait 15 minutes, the tank should be empty. Do not run the pump dry. If you have to prime the pump, just stick your finger over the hose end and let it build pressure.
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From: miami
Drained fuel tank as best I could manually(cyphoning hose, gas can etc; smelled very old.) Removed fuel filter. Cleaned and replaced. Added 3 gal. fuel to tank. Cranked motor and ran using bursts of starting fluid hoping to pull fuel to injection sys. Checked Filter for fuel, none. Oh, after slamming a whole bottle of fluid into the thing I noticed a wad of plastic grocery bags wedged into the left grille covering an intake-vent. The bags were dust to the touch. Assuming much garbage pulled into injectors. Not yet willing to carry over to a mechanic. Please advise.
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Joined: Jun 2002
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From: Atlanta GA
> Checked Filter for fuel, none.
You have to make sure the high pressure fuel pump is working, it is under the driver's seat inside the frame rail protected by a shield.
The first thing to do is unplug the power lead, hook up a test light, and make sure you have power going to it while the vehicle is cranking.
You have to make sure the high pressure fuel pump is working, it is under the driver's seat inside the frame rail protected by a shield.
The first thing to do is unplug the power lead, hook up a test light, and make sure you have power going to it while the vehicle is cranking.
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From: miami
>Under driver seat.
Does the high pressure pump unscrew from the bottom to reveal a filter inside? Is there another fuel pump at the motor? If damaged can I find it or them at NAPA? Please excuse my ignorance as I am used to trucks made of steel that have carburators and a simple fuel pump visible to the eye just under the hood....
Does the high pressure pump unscrew from the bottom to reveal a filter inside? Is there another fuel pump at the motor? If damaged can I find it or them at NAPA? Please excuse my ignorance as I am used to trucks made of steel that have carburators and a simple fuel pump visible to the eye just under the hood....
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More Turbo
Joined: Mar 2006
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There are 2 pumps, a low pressure pump in the tank with a strainer on the pickup, and a
high pressure pump located on the frame. A filter should be also located on the frame.
each uses push-on type pressure fittings, which needs a disconnect tool. You might
want to consider a Haynes manual to help get accustomed to this system, as it can save
a bit of the aggravation. Autozones' website has some useful descriptions and pictures
of each portion of the fuel system also. Good Luck.
high pressure pump located on the frame. A filter should be also located on the frame.
each uses push-on type pressure fittings, which needs a disconnect tool. You might
want to consider a Haynes manual to help get accustomed to this system, as it can save
a bit of the aggravation. Autozones' website has some useful descriptions and pictures
of each portion of the fuel system also. Good Luck.
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Post Fiend
Joined: Jun 2002
Posts: 13,873
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From: Atlanta GA
> Does the high pressure pump unscrew from the bottom to reveal a filter inside?
I have to assume you are looking at the fuel filter at the rear of the vehicle. It is the only thng that unscrews from the bottom. Leave that alone for now.
The high pressure fuel pump is in the frame rail under the driver's seat protected by a shield. You should be able to remove the power lead without removing the pump from the vehicle.
Plus, follow the fuel line going from that pump to the engine and see if you have a fuel filter higher up in the frame rail where it goes over the front axle. You might need to change that and it is pretty simple. Most likely you do not have a filter there.
I would like to point out you have to prime the pump three times to start it. Key on, crank 5-10 seconds, shut off, wait 5 seconds, redo.
I have to assume you are looking at the fuel filter at the rear of the vehicle. It is the only thng that unscrews from the bottom. Leave that alone for now.
The high pressure fuel pump is in the frame rail under the driver's seat protected by a shield. You should be able to remove the power lead without removing the pump from the vehicle.
Plus, follow the fuel line going from that pump to the engine and see if you have a fuel filter higher up in the frame rail where it goes over the front axle. You might need to change that and it is pretty simple. Most likely you do not have a filter there.
I would like to point out you have to prime the pump three times to start it. Key on, crank 5-10 seconds, shut off, wait 5 seconds, redo.
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From: miami
Attn: Rebocarbo,FL1a,
Thanks gentlemen for the info. Thought I was gonna have to pull the tank there for awhile. And yes there was an in-line fuel filter between pump (located under driver seat in frame) and motor. Its been replaced and bronco runs very nice. Am very surprised (having browsed this site for info) at body condition of this truck. I am more of a steel dash, carb. with HP fellow but this might get fun.....
Bill
Thanks gentlemen for the info. Thought I was gonna have to pull the tank there for awhile. And yes there was an in-line fuel filter between pump (located under driver seat in frame) and motor. Its been replaced and bronco runs very nice. Am very surprised (having browsed this site for info) at body condition of this truck. I am more of a steel dash, carb. with HP fellow but this might get fun.....
Bill
