20 Most Recent 1988 Ford Econoline Questions & Answers

It has to have 2 batteries because it is a diesel engine. Diesels use compression to fire the combustion mixture instead of a spark plug as a gasoline engine does. It has glow plugs that heat the mixture up before starting to help promote this and it has probably twice the compression ratio,therefore it takes alot of amps to start it and that is why you have 2 batteries. No it still only has one solenoid for the starter but it has to use a gear reduction starter instead of a conventional one.

Theres 2 pumps one in the tank, lift pump, and one in the chassis rail under the driver side. The one in the tank is cheap, the one in the rail is not. The one in the tank only produces low pressure to prime the main pump and if it is broken, may not cause that much of an issue except when starting. the one in the rail is a no-start if it fails. The idea is that the rail pump can supply high pressure for the injectors, so a fuel pressure test at the injector rail will determine which pump is playing up. Hope that helps Tim

The fuel pump inertia switch that shuts off the pump in the case of an accident or impact is located under the right side of dash I have also
found them behind the right kick panel. There is also a fuel pump
shutoff relay under the hood on the left firewall, and a relay on the
right fender apron behind a plastic cover. Hope this helps.

in the fuel tank

you need to open up the throttle body and clean out the jets. if been stud for awhile you get a fuel build up as it evaporates, turns into like a dust this blocks the jets. as it gets sticky from new fuel. every time you drop the fuel pressure you are making it sick back down. then driving you are pulling it back up.

Possibly just a burnt out fuse, but could be the yransition switch between tanks not connecting properly. Check it all out.

There are screws in the top and bottom of the bezel. You take those out and ease the bezel off the steering column. Then the cluster has screws in the top and bottom holding it in the dash. Once those are loose, be careful pulling the cluster out. If you have an auto, you need to disconnect the shift indicator cable. It's a piece of fishing line looking wire in a plastic tube. It wraps under the column and around to a retaining stud. Ease it off and lift the cluster out

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Do a Fuel Pressure test.

econoline

They should not glow orange, possible obstruction, most likely a bad catalytic converter.

The dipstick tube should have an o-ring near the bottom where it goes into the transmission case. Once you remove the bolt holding the bracket for the tube you should be able to pull the tube up and out. You should then have access to the o-ring.

This should do it.