Gas tank hookup problem
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Gas tank hookup problem
I've got a 71 F100 390
I took the gas tank out of the cab about a year ago, and it has been outside. I mounted it in the bed and hooked it up yesterday. The truck ran fine for about 10 miles, then died. I can't get gas from either tank now. The only connections I made are in the fuel line, because I have a switch by the driver door, and the vac line, which is by the passenger door. The only things I can think of are possibly the tank being dirty or having some crap in it that clogged the line or the filter. However, the truck went straight from full power to dead, so I don't think it would be the filter. Anyway, I'm learning all this as I go, so any suggestions would be wonderful.
Travis
I took the gas tank out of the cab about a year ago, and it has been outside. I mounted it in the bed and hooked it up yesterday. The truck ran fine for about 10 miles, then died. I can't get gas from either tank now. The only connections I made are in the fuel line, because I have a switch by the driver door, and the vac line, which is by the passenger door. The only things I can think of are possibly the tank being dirty or having some crap in it that clogged the line or the filter. However, the truck went straight from full power to dead, so I don't think it would be the filter. Anyway, I'm learning all this as I go, so any suggestions would be wonderful.
Travis
Lead Driver
Joined: Jan 2003
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From: Ohio
Try pouring a spot of fuel into carb and see if it starts/runs. If it does, then fuel is the problem.
Try pulling the line off the pump and see if anything comes out(the line coming from the tank). If no fuel...try blowing back thru it(with air?) and see if it comes out thru the filler cap. This will prove a clean line. If all seems well, then maybe it's the pump??
Put a can of gas right near pump and stick a line into can. Try cranking motor over and see if it will suck fuel from can. This will eliminate the pump as a problem.
Not really sure of your set up...so I'm giving you some suggestions to help eliminate possible problems by checking each part of the system.
Good Luck
Try pulling the line off the pump and see if anything comes out(the line coming from the tank). If no fuel...try blowing back thru it(with air?) and see if it comes out thru the filler cap. This will prove a clean line. If all seems well, then maybe it's the pump??
Put a can of gas right near pump and stick a line into can. Try cranking motor over and see if it will suck fuel from can. This will eliminate the pump as a problem.
Not really sure of your set up...so I'm giving you some suggestions to help eliminate possible problems by checking each part of the system.
Good Luck
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aight...i'm naive so i might say some stupid stuff...just let me know
i went out and disconnected the new tank, cause I was going to have to soon anyway. The carb was getting no gas from either tank. It still does not.
I took the inlet off the filter and blew into it, and an equal amount of gas came out after i stopped blowing. I assume that means that the fuel line to that point is fine. I don't know where my pump is, but i can't imagine it going out due to adding another tank, which actually used to be on the truck to begin with.
The best guess i have is that it has something to do with the vacuum line or somethin...i still haven't tried the fuel straight from a can, but i will later.
i went out and disconnected the new tank, cause I was going to have to soon anyway. The carb was getting no gas from either tank. It still does not.
I took the inlet off the filter and blew into it, and an equal amount of gas came out after i stopped blowing. I assume that means that the fuel line to that point is fine. I don't know where my pump is, but i can't imagine it going out due to adding another tank, which actually used to be on the truck to begin with.
The best guess i have is that it has something to do with the vacuum line or somethin...i still haven't tried the fuel straight from a can, but i will later.
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Do what Freighttrain said. If you got rust in your tank it problalby broke your Fuel Pump.
(That happened to me once)
What I did was, replace the fuel pump, clean the carb, add an extra fuel filter (clear plastic) under your cab (right after the tuel tank) and this should work better.
(That happened to me once)
What I did was, replace the fuel pump, clean the carb, add an extra fuel filter (clear plastic) under your cab (right after the tuel tank) and this should work better.
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Hey, I went and bought a new pump, filter, and additional filter housing w/filter.
I can't seem to get the filter cover unscrewed from the new pump. I am assuming it didn't come with one, seeing as auto parts stores are out to get me...
It is threaded normally, right?
confused, dazzled, wet, trying to get the taste of gas out of his mouth....
travis
I can't seem to get the filter cover unscrewed from the new pump. I am assuming it didn't come with one, seeing as auto parts stores are out to get me...
It is threaded normally, right?
confused, dazzled, wet, trying to get the taste of gas out of his mouth....
travis
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Oh, also, when you said clear plastic.....why?
Wouldn't a metal one do just as well? I couldn't find any clear plastic ones that had bigger than a 1/4" inlet/outlet. Let me know.
Travis
Wouldn't a metal one do just as well? I couldn't find any clear plastic ones that had bigger than a 1/4" inlet/outlet. Let me know.
Travis
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Do you have a pump that HAS the filter attached? Or is the fuel filter attached to the carb?
The one I have does NOT have the fuel filter attached to the fuel pump (see photo #7 in my gallery) althought I think the original on the vehicle did. I guess that's why I have a filter on the carb.
I suggested the "clear plastic" filter because that way you can SEE the rust from the tank. And if you use a glass filter it could break.
(This is all assuming you have the same problem I had.)
The one I have does NOT have the fuel filter attached to the fuel pump (see photo #7 in my gallery) althought I think the original on the vehicle did. I guess that's why I have a filter on the carb.
I suggested the "clear plastic" filter because that way you can SEE the rust from the tank. And if you use a glass filter it could break.
(This is all assuming you have the same problem I had.)
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From: Ohio
If your new pump has the filter housing, then it came WITH a filter in it. The metal housing should unscrew(normal right hand thread). It might take a good grip and maybe either mount pump in vise or install on truck. The sheetmetal housing are kinda flimsy and hard to turn. I would not mess with the new one, just install on truck.
I agree on the plastic filter, but if you can't find one with proper hose size, then the metal one will work too. It's is nice to see if you are collecting anything with the plastic one.
I agree on the plastic filter, but if you can't find one with proper hose size, then the metal one will work too. It's is nice to see if you are collecting anything with the plastic one.
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From: Charleston, SC
I actually run two plastic fuel filters before the pump, one right before the fuel pump and the other below the cab. It's great to be able to see what all gets caught up in there (thankfuly not much anymore!). You've gotta be careful with using those old gas tanks that might have some rust in em. It's easy for a piece of junk to get in the fuel pump and that pretty much does that part in!
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The valve is correct...i know that the fuel line to both tanks is clear, at least from the pump back. The new pump does have a filter housing on it, just like my old one.
I'm going to try and do it all today, but it's still raining so i might have to wait a while.
thanks for all the help
travis
I'm going to try and do it all today, but it's still raining so i might have to wait a while.
thanks for all the help
travis
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Well gentlemen....I found a free half hour today when the rain stopped, so i took advantage of it.
I added an additional filter under the cab, and switched out the fuel pump w/filter. The pump was terrible because I have a massive oil leak somewhere near there, so everything was really nice and dirty. However, it got done, and after a few minutes of cranking and stomping, the truck started right up and idled nicely. I don't think I'll be having any more problems for a while...at least until I try and hook up the other tank again. I think I'm gonna have it cleaned though.
Anyone know an easy way to clean a tank that is less than the $75 the shop wants?
Travis
I added an additional filter under the cab, and switched out the fuel pump w/filter. The pump was terrible because I have a massive oil leak somewhere near there, so everything was really nice and dirty. However, it got done, and after a few minutes of cranking and stomping, the truck started right up and idled nicely. I don't think I'll be having any more problems for a while...at least until I try and hook up the other tank again. I think I'm gonna have it cleaned though.
Anyone know an easy way to clean a tank that is less than the $75 the shop wants?
Travis
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Joined: Jun 2002
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From: Atlanta GA
> I can't seem to get the filter cover unscrewed from the new pump.
The easiest way is to put the pump in a vise, put the jaws of water pump plyers in the notches and turn it without squishing the metal case. Otherwise buy the special wrench that is made for it.
The easiest way is to put the pump in a vise, put the jaws of water pump plyers in the notches and turn it without squishing the metal case. Otherwise buy the special wrench that is made for it.
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