This is a repeat from another question, but here goes:
OK, my truck acts like it's running out of gas after running a block.
I've replaced both the fuel pump and filter and nearly all of the rubber fuel lines. I've removed one tank because I thought maybe it was the tank causing the problem (dual tanks), but I get the same problem with both tanks. Now I only have the rear tank connected to anything at all and the front lines blocked off. I have the switch inside the frame by-passed so there is no way the switch can be causing the problem.
At first I was getting NO gas at all to the fuel pump and I had thought maybe because the lines were empty I was sucking to much air and had to flood the lines to get the air pocket out of the way, but now I have gas in the line fine after a block it still feels like it's starved for gas. I have plenty of gas now in the tank because I siphoned plenty out of the front tank and put it in the rear tank so that one is out.
2006-11-23 07:30:53 · 3 answers · asked by Marty A 1 in Cars & Transportation ➔ Maintenance & Repairs
I ran out of space there...sorry..
Anyway, I DO have plenty of gas in the rear tank. I replaced the fuel pump with a brand new pump, new filter and plenty of new lines. I can find no kinks, no breaks or leaks so as far as I can tell no air can be entering the system, but yet when I try to drive anywhere it acts just like its running out of gas and I get no gas in the line going to the fuel pump. Nothing can go into the tank because there is a coil like spring to prevent such things unless it's just dirt, but in both tanks at the same time? It origionally started a month ago when I was helping my brother move. We had driven well over 100 miles with no problems and nobody put anything in the tank that I know of. It would have had to be in both tanks anyway. I've checked for vapor lock and that isn't it either so now I'm totally stuck. What else can starve it for fuel? Any more ideas? Thanks ahead of time..
M in Texas....
2006-11-23 07:38:02 · update #1
Well, MrKIAll it's running fine in park and I put it in gear with my foot on the brakes and dig a hole in the dirt with the rear tire so it IS getting fuel to the carb now with no problems. I let it run at idle for almost an hour with no signs of stalling, but I'm scared half to death to drive anywhere because if it dies again on the road or whatever I'm screwed. If it does what it did yesterday.... I don't have ANY money left for a tow in case I need it and I'm even afraid to drive around the block to be honest.
I might just put it up for sale now while I can get it running and refuse to let anyone test drive it any further than 1 block... :) Personally I wouldn't buy it that way, but hey, I won't be asking a million bucks either, just enough to get another truck back on the road. Heck, I paid $500 for this one a year and half ago and made my $500 back and then some. I haul scrap iron around in it so I don't need "pretty". I just need it to run.
Marty
2006-11-23 09:57:00 · update #2
On the by-pass...I don't think there is one. At least there isn't one from the pump. Theres an *in* and an *out*... Where might I possibly find this sucker? I don't think there is one because I've never seen anything like it on either tank or off the pump.
Man, it blows to be afraid to drive a block when I drove trouble free for over a year...
Marty
2006-11-23 10:19:57 · update #3
I forgot this part in the repeat Q: It's a straight 6 cylinder. The pump bolts to the front of the block just behind the water pump and in front of the distributor. I can reach it just bending over slightly, but I'm kind of tall too ;)
Starved under driving conditions... hmmm. The cam worn? If that's the case I would need a new block, no? I sure don't have any intentions of replacing it. This has broke me being my only income comes from my truck and it's been down long enough now that I'm NOT able to buy much of anything for it let alone a cam :(
2006-11-23 18:03:35 · update #4
Then again... a used cam...but still, LOTS of work and parts I can't possibly replace at this point. ..gaskets, bushings, odd nuts and bolts...and tools I don't have to remove valves etc... etc..GRRRRRRRRRR.....
2006-11-23 18:08:03 · update #5
Hello again.....
The second part of my other answer had the part about fuel flow.
You should be able to fill a two liter bottle half way in under a minute.
If......it does that.....then consider a plugged needle and seat inside the carburator.
Best of luck Sir.
ADDED:
Oh, how about the fuel pressure bypass. I think Ford uses them?
It's a simple valve that returns fuel back to the tank so the pump doesn't burn up.
I'm mostly a Chevy guy.
2006-11-23 07:41:05 · answer #1 · answered by Mr. KnowItAll 7 · 0⤊ 0⤋
Assuming this is a V8. Ford uses a oval fuel pump drive(actaully round but the hole is offcenter) that bolts on the front of the camshaft over the cam gear. If this gets worn the pump will not make its full "stroke" and the engine will starve for fuel. Probably engough to idle no problem, but not enough to run the engine under driving conditions.
2006-11-23 19:54:34 · answer #2 · answered by prd2boft 2 · 0⤊ 0⤋
If the pump is hooked directly to one tank, its either the screen in the tank, cracked hose, bent hose, usually near the fuel pump or tank, fuel pump no good or carburetor, last but not least, fuel filter.
2006-11-23 19:15:23 · answer #3 · answered by kayef57 5 · 0⤊ 0⤋