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Old 11-11-2011
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Join Date: Nov 2011
Location: Kamiah, Idaho
Posts: 1
89 Ranger 2.3 jerks after warm

My 89 Ranger (2.3) runs great first thing in the morning. After warm, from 2nd thru 5th I can't give it more than 10% throttle without it missing and jerking. This started a few months ago(5th gear) and has progressively worsened (2nd thru 5th). I have checked the plugs, replaced the fuel filter the ECT and the ignition module. I don't know if it's related but this all started after I ran a tank of non-ethanol premium thru it. I don't know if this is related either but after it warms up my radio stations start to feedback thru my stereo, almost sounds like my speakers are blown but my cd player works perfect. I have done all my own repairs on this truck and would like to keep it that way. Any help would be greatly appreciated.
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