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what gives a 5.0 mustang throttle hesitation even after a huge tuneup?

ive have a 91 5.0 mustang and has been in storage for five years and i have done a huge tuneup including fuel pump,filter,plugs,wires,cap,rotor,rechecked timing and wire connections and cannot get the hesitation in the throttle to go away and also has a engine miss but is not a constant miss

3 Answers

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  • 1 decade ago
    Favorite Answer

    BG Fuel Injector service. find a shop, have it done. trust me, the difference is night and day.

  • 1 decade ago

    the miss and you may need new fuel injectors that can handle the tune up assuming the engine is fuel injected

  • 1 decade ago

    fuel Injectors?

    Source(s): me
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