My friend has a 86 ford e350 econoline motorhome with a 390 and 4 barrel carb. It was starting and running fine and now its been mainly sitting and wont start up and run unless gas is poured in the carb. Any clue whats wrong?

Get a manual for a 86 ford econoline from an auto parts store.

Usually located near the inverter.

I would guess a 1990 E350 Econoline Van Owner Manual would have the chart. ISn't it on the fuse panel cover?

If you have no luck, let me know and I will try to search my archieves.

It is possible you need a fuel pump or carb could be all gumed up from sitting around

I know this might sound odd but try replacing the ignition switch. I have a 86 c class e 350 and could not get the front fuel pump to run for the longest time. After changing everything else, I decided to change the ignition switch, and believe it or not the front pump came on and started working the way it is supposed to.

Replace the ignition switch

Have you located your local Cummins Dealer for this. It should be no issue for them to copy/email a diagram. Good luck...

85 ford 350 econoline van with 460 engine and duel tanks, lost prime on both tanks, cannot get gas up to inlet on carb, it happen after having shot work on vaccum lines, i can't hear the pumps in the tanks making a buzzing noise, i hear a click when i switch from front tank to the rear tank , somewhere under the hood, on the driver side front fender, what is the next step.

if it was me i would start with a new fuel filter and some STP gas treatment if you let it sit for a long time there maybe water in the gas tank and try these websites to see if they have your motorhome listed its www.autozone.com and the other one is www.alladtadiy.com if all fails stop by your local library and get your hands on a Haynes auto repair manual for your motor home

try coming up from the wheel way, on your plugs. the rest sounds alot like cat converter.



hope 2 help shack