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SOHC - 2.3L & 2.5L Lima Engines Discussions and Topics specific to the Lima 4 cylinder engines

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Old 07-28-2007
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Location: Folkston, Georgia
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Help - Rough Running

I have a 93 Ranger XLT 2.3 manual transmission 2wheel drive with 280K miles. It has suddenly developed a problem. I drive 2 to 3 miles to town. It runs fine. Then after it sits a while and I start it up to drive home, it idles and runs very rough and misses. This is in all gears. I have to floor it and let it stumble and shake to get it to accelerate up to speed to get it home. This has happened the last 4 times I have driven it. I put a new oxygen sensor in it today because the sensor hadn't been changed in 180K. It still did the same thing. Any suggestions? Thanks for any help. This has been a wonderful truck.
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Old 07-29-2007
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when was the last time the truck had a tune up? fuel filter, spark plugs, wires etc... could be those items but my thinking is, if it needed a tune up, it would be running and idling rough all the time. Just as well though -Mike-
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Old 07-29-2007
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Actually.... MAF Sensor! Believe it or not, I took mine out (170K odo) and took a little acid brush and some isopropyl alcohol here at work, and cleaned it. Brush it REALLY GENTLY!!!!!! the two wire's will break if too much pressure is used. I noticed that once I did that, The hard Idling, A/C killing the engine, And the really bad acceleration went away. I still have bad acceleration, but that is Tranny related for me. Otherwise, I recommend doing that, or just buy a new MAF sensor.
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Old 07-29-2007
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didn't know if Rangers back then had MAF or not -Mike-
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Old 07-29-2007
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Quote:
Originally Posted by Mike9825
didn't know if Rangers back then had MAF or not -Mike-
My 94 Does, and we have the same engine
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Old 07-31-2007
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I thought it was a MAP sensor back then....?
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Old 08-06-2007
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no its a mas
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Old 09-08-2007
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Tune up

I have had my old bronco 2 2.9l and my 94 2.3l do this very thing.
On the bronco, the cap, wires and plugs needed changed as the points on them or whatever you call them were corroded and all green.
On the 94 2.3 the dam wires were corroded where they snap onto the plugs and the
point of the coil pack where the wire plugs in was corroded and green
No clue as to why it did it but both times I used silicone on them to prevent it from happening again, never has.
Both times also, I could start the vehicle cold and all would run well but if I shut it down for alittle while and it was still even the tiniest bit warm when I restarted it it missed like a son of a gun. I rode home from cleveland oh in my bronco and let me tell you it was a bronco that day bucked like a sob all the way home.
My 94 2.3 which is in my Ranger, it recently started acting up under similar circumstances but happened more when the engine was cold, or if it was damp outside. Needed a new air filter as my dumb a$$ never thought to change it after takign it mudding 7 or 8 times,and it was in the water for about an hour towing out a f-150.
2 things are crucial to the computerized work of arts these days, 1.air...needs to be able to breath well.
2. Good connections, wether it be ground connections, spark plug wires or whatever the computers are very touchy it seems and with all the sensors that work on small voltages, it is imperative that they have good clean connections. Will save you alot of time troubleshooting in the long run.
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