My 87 Ford Ranger has a continual issue with stumbling, bucking, power loss while driving at any speed, when its cold it doesn't seem to do it, although at startup there seems to be a rough and erratic idle most of the time and trying to accelerate doesn't work when its cold. After it warms up during driving trying to accelerate will oftentimes result in the bucking, power loss, acting like it isn't getting any fuel. I'm leaning towards a Throttle Position Sensor (TPS), or the computer (EEC).
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4 years ago