Question about 1998 Ford Ranger SuperCab

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I have a 1998 Ford Ranger that when I start it up runs a little rough for about 2 minutes then has a good smooth idle. When I step on the gas there is no power like it wants to stall. It only goes to a certain rpm not much more than idle. I put a new fuel filter in but does the same thing. It was running just fine and had no problems with it until now. It has the 2.5 four cylinder engine with a 5 speed manual transmission. Thank you for your help. Dan

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  • Anonymous Mar 19, 2014

    88 ranger running rough when pressing gas idles ok a little lopping here and there but when driving not running good at all there is no muffler so is loud but once this started its even louder and less power

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A possibility:

I have a 1998 Mazda B2500 (same truck/engine/trans). A few years back, I was getting a rough idle a few minutes after startup, and my tachometer would fluctuate wildly. This progressed to the point where I was stalling out randomly while driving. With the help of my local mechanic, I ended up diagnosing it as a mass airflow sensor error. My best guess is that oil or water had gotten into the intake. Whatever the cause, after replacing the sensor (saw them for $60 on eBay, right after I paid $300), it's been running smoothly since.

P.S. -- I don't think this is a mileage/wear and tear issue so much as it is bad luck. I only had 13k miles on the truck at the time.

Posted on Dec 04, 2008

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