90 ford ranger runs fine when cold but when it gets the slightest warm it dies

Asked by GuruDB92S7 Jan 11, 2025 at 09:24 PM about the 1990 Ford Ranger XLT Standard Cab LB

Question type: Maintenance & Repair

90 ford ranger 2.3l distributorless ignition system   so i parked it about 2
years ago due to a knock later found out it was just the headgasket replaced
the headgasket changed the crank sensor  (because i  miss aligned it on the
vanes and broke it)  changed all the top end gaskets  etc etc now that its
back together  it will start and idle fine when its cold but when it gets the
slightest bit warm it dies and then i can keep turning it on but it will continue
just to die after a few seconds of running any ideas

2 Answers
311,425

Gene answered 3 months ago

Sounds like a sensor issue, have you run the codes? 19909 is Ford OBD 1 so hopefully you have a code reader than can do the old system. Could be an ECT or ACT but I'm just guessing without hard data.

Mark helpful
311,425

Gene answered 3 months ago

I just remembered something from back in those days that using aftermarket sensor parts caused problems after the engine warmed up, so your crank sensor might be under suspicion. You will need a waveform test to confirm if it is breaking down.

Mark helpful

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