Unsteady idle and clatter on hard acceleration - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 03-12-2014
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Location: Spring, TX
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Unsteady idle and clatter on hard acceleration

Engine clatters when I get down on it and thing always idles rough/unsteady. It's been doing this since I bought it at 11,000 mi and now has 154,000. I quit running ethanol in it which amazingly enough, it wouldn't clatter when I ran E85. Still idled rough though. I try to use Shell or Chevron when possible. Mileage isn't too bad. Also, it only does this when motor is warm/hot not in morning when cold.

Why don't one of you nice chaps come straighten this out for me I'm in Spring, TX and need a mechanic I can trust anyway.

Edit: I noticed yesterday it does it even under normal acceleration but weird thing is not all the time it seems. Sometimes barely audible.

Last edited by SGL1; 03-15-2014 at 09:23 AM.
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Old 03-15-2014
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Location: Mt.Pleasant, Texas
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im having the same problem except im getting misfire codes replaced plugs and wires also the coil pack no luck yet
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Old 03-15-2014
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It could be my coil pack I think thats the only thing not replaced. But I'm getting no codes to my knowledge.
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Old 03-18-2014
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Location: Fort Collins
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Could the clatter be described as chatter? I know that may sound like a dumb question, but in my 90 Ranger the rocker arms flattened the rods and caused a chatter sound. It didn't happen to all the rods, just 3 or 4. I went ahead and replaced all the rods and rocker arms. Haven't had a problem since.
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Old 03-18-2014
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Nah more like bad gas clatter. Somewhat audible when I accelerate and louder when I get on it to pass or get on down the road. Rough idle not steady.
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