Thread: 90 Rangie just stopped, started. stopped again.

For what its worth, Ihad a car years ago that did this and I found a large growth of slime in the fuel tank. It would get sucked up to the pickup and block it partially or fully. Drained and cleaned the tank and problem gone. Hope yours is simple. Jim

Fuel pump, fuel pump relay, fuel pump wiring/plugs, ignition amplifier, ignition switch, loose wires at the ignition coil....etc...

Originally Posted by lennardj

My 90 Rangie

it simply stopped

started again after a few minutes, ran OK for few KM than stopped again and again eventually started.

I'm voting for the Lucus electronic module on the side of the Dizzy.
Either install a new one or install the Bosch conversion that Bee utey has posted

Cheers
Mike

Mine would cut out, then start a few minutes later, just to stop again after a minute or so, until the battery went flat (happened on the steepest part of Mt. Terrible ).

Bad connection from the battery to the alternator i think it was, causing the electronic ingnition module to cut out. A bad earth would do the same i guess.

Lennard - I had a 90C that did that for months - local mechanic replaced bits all over the place - no fix- turned out to be $45 cold start sensor - 10 minutes later problem solved... mind you when it would restart after cooling down a little, a LOT of smoke would appear because the thing was running as rich as it could..

3rr ,what is a "Cold start Sensor" For $45, you probably mean the engine coolant temp sensor ? perhaps the the Fuel Temp sensor? even the bypass air valve (IAC) .
Problem solved ? when it cools down a little a LOT of smoke etc etc . Now thats some problem solving !!!

I think the cold start sensor sits on the side of the plenum (drivers side) held by two screws and spurts fuel directly into the chamber for cold temp starts. It has a couple of wires to it.

I think the cold start sensor sits on the side of the plenum (drivers side) held by two screws and spurts fuel directly into the chamber for cold temp starts. It has a couple of wires to it.

You are thinking of an old "flapper" on a 3.5.
A 90 should have 14CUX on a 3.9.

The key richness sensor is the engine temperature sensor near injector no2( ie front of RH bank). If this has died then the engine will "have the choke on" all the time.
Regards Philip A