I had a problem with my MH not cranking. It is a class C on a ford e-350 frame. 460CI with a carb. not fuel injection.I disconnected the fuel line at the Carb. and had wife turn on ign key. Nothing happened. Guess I have a mechanical pump. If it was elect. it should have started pumping if it is working properly. I had wife to crank engine over and gas came out of line. It seemed low pressure. I could put my thumb over it and it would stop. I guess my problem is probably with fuel pump. My question is how in the world do you get to the fuel pump to replace it. Do you remove the right front tire and go from under? I would have the mechanic fix it but I would have to have it towed. Any suggestions will be appreciated . John
this is proberly gonne be a pita job like the spark pluge are on a 1994 class/c with ford 460 engine,,, you have to just look the situation over and remember if you take it to a shop they will do the same thing you can do your self,,,just take your time and take it one step at a time,,,and btw a 12 pack will go good here to help you think ,,,now I said all of that to say this you might have an electric pump somewhere between the mechanical pump on the engine and the tank,,,crawl under the rig and check the fuel line from back to the front of the engine ,,,it will usuall be in the rear near the tank or it cld be in the tank...check your fuse box and see if there is a fuse marked fuel pump,,,,I had a 1986 coachman on a chevy,p30 chassie that had the elect, pump in the tank and the mech. one on the engine...keep us informed as to how it comes out....
* This post was
edited 08/15/09 08:21pm by tboss *
John I answered some of your questions in your earlier post but I'll repeat it here. Ford used a fuel pump cutoff switch activated by oil pressure, if the engine is not cranking the fuel pump won't pump. You can't just turn on the ignition and get fuel flow. This only applies to the electric pump. If yours does have the electric pump you will find the cutoff switch on the back of your engine on top near the left head, its next to the oil pressure sending unit and looks just like a second sending unit except it has two wires on it. You can pull the connector off and jumper the two wires together, then turn on the ignition and fuel should pump immediately if the pump is good.
Kip & Judy
2000 Georgie Boy Pursuit, 2001 Cherokee toad
1951 Pontiac with 400cu GTO running gear
1964 Corvair Monza all original
Thanks Guys, I finally ran it down to a electric fuel pump in the tank. It had a pressure switch that would not allow the pump to run unless the engine has oil presure. After swapping out all filters and blowing out lines it finally started, but it took a lot of gas being poured into carb to get it primed. Still not sure the fuel pump is not going bad. I'm going to take it on a test run close to home before going long distances. John
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