Mid throttle hesitation - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 02-18-2013
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Location: Hickory, nc
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Mid throttle hesitation

Hi guys, I'm posting here hoping to find a solution. I'm working on a 94 Mazda b4000 4wd, I just completed a clutch job with new flywheel/and all hydraulics. The install had the truck in the air for a couple weeks as I have 10 hours a day. Upon bringing the truck down it runs, clutch has great pressure, and idles fine. The issue I have is a mid throttle hesitation/loss of power. If you press the pedal to the floor it takes off perfectly. Prior to clutch install the truck ran well. I have cleaned the maf and iac with maf cleaner. Any ideas on how to troubleshoot this?
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Old 05-14-2013
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Icon4 MAF Sensor

Have you checked the MAF sensor? Could have died... or going to. If not, then I don't know if you would want/have need to install bigger with silicon turbo inlet?
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Old 05-15-2013
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idles fine, not maf or iac.

check your fuel rail pressure, your air filter, start with the obvious things. also check for spark plug arcing.could be a miss-fire.
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