Not an fbody, but definitely a gm problem thats stumping me. Im - TopicsExpress



          

Not an fbody, but definitely a gm problem thats stumping me. Im working on my cousins Sonoma with a 4.3l v6. Its missing really bad at idle and when I pull the brake booster line the vacuum is pulsing instead of a constant sucking, any ideas? Its got brand new plugs, wires, distributor, fuel spider, cleaned maf. It drives just fine once it gets going but it wont stay idling and was throwing a maf code and a random miss code.
Posted on: Mon, 27 Jan 2014 02:39:04 +0000

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