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Ranger with Mustang engine, stalling

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Old 10-22-2004, 10:58 PM
RangerToMustang RangerToMustang is offline
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Ranger with Mustang engine, stalling

Hello Everyone,

I purchased an '86 Ranger that has a '93 Mustang engine in it, both engines were 2.3L's. Seemed kind of like a pointless swap to me, but I really have not dealt with Ford's too much to know and I only paid $250 for it. The engine is a 2.3L FI SOHC.

The engine runs exceptional, only problem is that it stalls frequently when cold. Ever since I got it, it would seem to stall at random intervals when coming to a stop sign or just sitting there idling (It is a 5 spd manual).

Recently I did a tune-up on it... Plugs, wires, cap, rotor & air filter... Now when you start it in the morning it will stall immediately. Once it heats up, it will idle fine, but otherwise it will stall constantly if you do not keep your foot on the gas a little. It also still does stall randomly when coming to a stop, or backing out of the gas quickly.

There was no air filter in it before... There is also some hesitation like when shifting from 1st to 2nd during normal driving. I am wondering if it might be a fuel regulator problem, perhaps dirty sensors in the intake/throttle body, something else or a combination of things. Any and all information would be greatly appreciated. Thank you for your time!

- Philip
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Old 10-23-2004, 01:50 AM
tweaker tweaker is offline
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I had the same problem with my 89' mustang, it would run rough while cold, and stall every once and a while,

Take off the air intake tube, ( if any) and half a friend, or grab the throttle with your hand about half way/ 3/4 of the way open, and squirt some carb cleaner, doesn't matter if it's fuel injected and your using carb clean, but make sure you get the hole surface area

you might want to take an old tooth brush and scrub a little here and there,

you might want to take the exhaust off, and find out if it's restricted, you can also try puling off the O2 sensor, and try starting it cold with out the O2 sens. if it dies, then that' eliminated,
let me know
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Old 10-23-2004, 04:14 AM
AlfredB1979 AlfredB1979 is offline
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A 93 model engine has an IAC on it, IIRC. Check that out, too.

Since we can't see what you've got, it's up to you to look under the hood for shortcuts made in the wiring harness for that swap job. Maybe a sensor wire got left disconnected for the heck of it to finish the swap.

If that engine had been sitting before the swap, sure, some sensors can get crudded up. A bunch of factory-age sensors on a 12-year old engine isn't a great thing, either.
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