1991 Ford Econoline - Answered Questions & Fixed issues

I'm just guessing but I believe under the hood near the firewall

If you have an automatic transmission you need to check the neutral safety switch; if it's a manual check the clutch safety switch.

This will sound odd, but if the fuel filter hasn't been changed in a long time replace it and check that air filter isn't clogged up. If this isn't causing it you can try changing the fluid if it's been neglected and add TransX. If you need further help, I’m available over the phone at https://www.6ya.com/expert/oscar_403cc49e0f00cda7

Most pickup based motorhomes have 2 fuel tanks, you may have a tank selector valve that is electric or vacuum operated. Check underneath and follow the fuel lines from the tank to the front of the engine, somewhere in between you may find that the fuel hose goes to a valve that is used to switch between the 2 tanks ie: main fuel tank and auxillary fuel tank.

under right side of dash by heater plenum

Dave, Your question is incomplete! Are you reffering to the ECM, or the brain of your vehicle. Or are you wanting to know where to connect a code reader? The ECM is located on the Firewall approximately behind the battery. If you are trying to connect a code reader, there are connectors beside the battery, you have to fish around for them.

You aren't going to find vacuum diagrams on this site, you are going to have to find an old haynes manual on amazon or somewhere

yes check that first but on some fords there is two filters that need to be replaced go to parts store tell them what you have to find out .

you must have the switch misadjusted the mounting holes should be slotted so you can adjust where the switch sits try loosening and moving it till it works properly and then tighten it down in that position

It is located under the dash of the vehicle on the passenger side of the car!------------------------------------------------------------------------------Multidiag Actia

Honestly I'm not exactly sure of the solution, but I sure hope someone does. A friend of mine had the same problem and was hoping his <a href="http://www.insuranceexpress.ca/Homeowners.html">home insurance in calgary</a> would help with the issue. Does insurance cover that kind of thing?

The first thing you must do is check the engine control system for fault codes. To do that go here and read instructions.

The blower motor relay is located in the relay panel on the left front fender apron

Only one under the dash near the brake pedal that I know of.

You need to know if the coil is getting voltage and a ground signal from the pickup coil in the distributor. Then go from there.

Sound like a starter problem there; check it.

The inertia switch is on either side of the dash near the doors. Look around the emergency brake pedal or around the heater box.I would check the fuel pump relay and the ECM relay.

where is the gas pump on van 91 econoline?

I've been working a similar issue with a friends truck. When the heater blower motor is off the engine temperature gauge reads normal in the middle. But when you turn the blower motor on the gauge goes way up to the top. The engine isn't really overheating. There is an electrical problem that when you turn the blower on it is affecting the temperature gauge and making it go all the way up off-scale. So far we've found that the blower motor speed control resistor is bad. We replaced that and the speed control works now, except for the low speed setting. I suspect there is a bad ground somewhere and the bottom end of the resistor element isn't grounded anymore. As such too much current is going through the ground in the dash, which is affecting the gauge.

check under the hood, almost below the master cylinder, there should be another fuse box located there,, the model makes a difference, (E150,250,350)