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I have a 90 model Flair Motorhome, on a ford Chasis. This is a fuel injected 460. Recently, the darn thing decided not to start. After fiddling around for a few days, I tried disconnectiong the air breather, and spraying a little starting fluid in it. It started, and then died as soon as I stoped spraying. I thought this probably meant the fuel pump was bad. I drained and deop the tank, to find that the pump ran fine, after I had removed it. I then started tracing backwards and found that I have no voltage to either pump. Now I thoguht this might be a bad relay. I CANNOT FIND THE STUPID THING. Does anyone know where the might hide one of these on a class A coach? Thanks Skip
The fuel relays are usually under the power module on the driver side of the engine compartment. But that is for a pick up truck. I am not sure where they would be on an RV without looking at the repair manual. Did you check the inertia switch? Again on a pick up the fuel pump inertia cut off switch is behind the passenger side kick panel. I'd check it first.
Thanks. I check the inertia switch for continuaty, and it was fine. Althought I was confused about the fact that I only have 1.5 volts inbound. I will keep lokking when the weather warms back up. I know that it has to be there somewhere. Skip
Power comes from the relay to the inertia switch and on to the pump. If you only have 1.5V there, it's not in the frame harness (good news I guess). So the relay's a good possibility. Like the other guy said, on trucks and vans it's in the "power distribution center." I don't know why an RV shouldn't have the same. I recently found out it was the middle of 3 relays in the box on one I was working on. It was also a 351. There's also a maxi fuse in the same box for the fuel. I think it's 20 amp, about the 3rd or 4th one from the far end.
Good luck,
Steve.
Thanks Steve. I went to a local shop this afternoon, and he pulled it up on CD Rom. It shows the relay is with one other and it is just to the left of the radiator. I saw that this week end, but without a detailed map, I didn't know what I was looking at. I will probably have to wait until this week end to put in the new relay and try it out, the weather is not the best in Texas right now. Thanks Skip