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Posted on Mar 10, 2012
Answered by a Fixya Expert

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Bad miss when you step on the gas - Sierra 1500 GMC Cars & Trucks

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  • Master 4,399 Answers
  • Posted on Mar 11, 2012
Anonymous
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Joined: Jan 07, 2011
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Thanks for choosing FixYa. This can relate to a number of things. It could be bad spark plugs, spark wires, coils. It could be a bad fuel filter. It may even be something electrical. Your vehicle has to have the perfect percentage of air, fuel, and fire to run correctly. If it has been awhile since you did a tune up, get one. If the check engine light is on, check for codes. It could even be a vacuum leak, so check your vacuum hoses and air filter. Since it is a bad miss, it is probably not in the hoses or filter, but bad air can cause it. Could be a bad fuel injectors.

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