Question about 1993 Chevrolet S-10 Blazer

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When i accelerate motor hesitates like starving for fuel i checked fuel pressure it is at idle 52 lbs when i give gas it goes to 60lbs truck starts fine idles ok with intermediate miss

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Could be dirty fuel injectors. solution: pour fuel additive such as SeaFoam or Lucas injector cleaner in the gas and drive.

Ignition timing could be off. Check timing.

OR, could be throttle position sensor is going bad. If cleaning the injectors doesn't fix it, then the sensor is going out and needs to be replaced.

Posted on Apr 09, 2011

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When was the last time you checked or replaced the timing chain/belt? This could be something very simple like a weak coil pack or faulty wire to something more serious like a sensor or timing tension arm not operating properly or maybe a vacuum advance not activating properly. Start with the basics, plugs, wires coil pack or Distributor cap and rotor, check the vacuum lines for leaks and brittle spots. Replace the PCV valve and air filter as well. One of these things is most likely going to correct the problem unless you have a valve with the valves or something like that.

Posted on Apr 09, 2011

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SOURCE: when i accelerate motor hesitates like starving

Thanks for choosing FixYa and welcome to the site. How long has it been since you have had a tune up? You may need spark plugs/coils, wires, new distributor cap, coil pack. Even though it seems like it is a fuel issue, your measurements look fine. With the exception of a fuel filter, I would think it could be in the ignition system.

Posted on Apr 09, 2011

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