Question about 1996 GMC Sonoma

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1996 Gmc sonoma

It has new plugs and wires. new distributor cap and a year old fuel pump. When i drive at a steady speed it sputters. Any ideas? Thanks

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  • pleasesayyes Oct 09, 2008

    I called my mechanic that changed my fuel pump and the fuel filter was changed as well at that time. I use some fuel injector cleaner about once a month. I changed the cat about 6 months ago. I also checked and cleaned my fairly new air filter. After driving the truck sometimes the service engine light shuts off and it runs fine.I heard it could be an ignition coil. Any truth to that? Thanks for your time.

  • krazykid23 Oct 13, 2008

    my truck is flooding itself when you step down on the gas peddle. i changed the maf sensor, fuel filter and air charger sensor. can you help me?



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There could be several possibilities, first did you change the fuel filter? most often times a partially plugged fuel filter will cause the sputtering. plugged fuel filters generally lead to the failure of the fuel pump. if you have a fuel injected vehicle the injector themselves can fail, this happens often especially if regular maintenance doesn't happen. i always use an injector cleaner additive when i fill up each time. a common symptom of sputtering is a plugged catalayic converter. the engine needs to breath to run right. also check the airfilter this is important for the engine to breath as well as proper fuel air mixture. if the engine senses a loss of power due to low fuel air mixture it will try to pump more fuel then it should therefore it's basically flooding itself. try these basic fixes first. if this doesn't solve the problem then post back with more detail and i will try a different approach.. please rate this thanks.

Posted on Oct 09, 2008

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