99 silverado intermitten power loss
November 20th, 2008, 7:36 PM
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99 silverado intermitten power loss
Hope someone can help I have a 99 silverado 4.8 when cold has power loss and sounds like its backfiring till it warms up after it warms up its seems to be ok till I shut it off for even 5 or 10 minutes and it will do the same thing loss of power and a muffled backfire, any ideas
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