no fuel filter!
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no fuel filter!
my truck is shuddering. went to change my fuel filter (1986 V8 fuel injected)...there wasn't one...the reservoir was empty!
what do i clean first...regulator,injectors,fuel lines?
or should i look elsewhere?
what do i clean first...regulator,injectors,fuel lines?
or should i look elsewhere?
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Joined: Sep 2003
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From: Right Next to U
Jackfast1, This is a bad problem....now that you have the fine grit that is on the bottom of your injectors, some that are misfiring will be wet and black with fuel. You'll be able to tell after you take the spark plugs out....meanwhile go to your favorite auto parts store and get a filter for it, doesn't cost much and it is worth it. Now your injectors have to be cleaned an/or replaced, they are not cheap either to replace them, they cost around here about 100.00 each, so if you can get by with cleaning them, do it. They are easy to clean but require some skill, and there are other posts that mentions how, but its a basic job useing air to blow it out and a good carb cleaner, don't scratch the ends or use a poke tool, it may damage it. clean an replace with new filter and your good to go.
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thank you... injectors tomrrow, and i will blow out fuel lines (pressure regulator as well?).
the "other filter" was the one which was missing, how will this affect the downstream mechanical fuel pump?
the "other filter" was the one which was missing, how will this affect the downstream mechanical fuel pump?
Posting Guru
Joined: Sep 2003
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From: Right Next to U
There isn't any Mech.fuel pump on the engine if you have an EFI engine, the fuel pump is in the gas tank, so you wouldn't blow it out, basically, what I would do to it would be as above, and put it all back together and from now on, to keep those injectors clean...would use Fuel Injector Cleaner at each fill up, in each tank....and then would change out the filter near the frame rail every 500 miles or so till there isn't any more grit an water in the system....why fix something if it isn't broke....
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Joined: Dec 2003
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From: Stanchfield,MN
there is more than just the fuel pump in the tank. that is just the supply pump the other pump is in the framerail towards the front of the truck that is the high pressure pump there should be a canister with a filter in it before the pump then there should be a big filter after the pump in the frame rail
Posting Guru
Joined: Jul 2002
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From: East Coast
Are you sure it's missing the filter? I've seen many trucks, including my own, that have the filter canister with no filter in it, although some had filters in there, many, especially later ones (like 86s) did not. It just works as a sediment container, any big pieces will be trapped in there. If you look closer to the engine on the frame there will be a regualar metal can filter that can be replaced.
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my setup is:in tank electrical pump,then the canister that should house the filter, then the high pressure (mechanical?) pump...
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From: Sarnia, Ontario, CANADA!
My 87 Ranger had the same setup. So I went to take the housing off and replace the filter and there wasn't one. So I was going to put one in and the housing broke. I had to go buy a new one and the guy at Ford said that a lot of the later 80's Ford's didn't need the filter but they left the housing there. If there is no filter in it in the first place, then it doesn't need one.
-Matt
-Matt
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