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Why would a 2002 GMC Sierra pickup with a 4.3 V6 fuel pump hum and the motor turn over but it just won't fire?


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Answered 2004-11-27 15:32:59

Bad fuel pump. This should still be under warranty, so have it hauled off to the dealer. the rotor and cap needs to be replaced, I just replaced mine and it started right away...bear in mind that the distributor cap on a GMC sierra 2002 4.3 v-6 is not easy to access...good luck.

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