Question about 1998 Chevrolet C1500

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I have a 98 4.3 v6 when i first start it in the morning it gallops and serges, then in awhile it straitens up some. still serges while driving it some, when its first started the exaust is very rich. it starts good. engine light is on.

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Scan it to save money from guessing .but is sound like vacuum leak or fuel pump problems.

Posted on May 11, 2009

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You may have a dirty mass airflow sensor.
Hook up an OBDII reader and check the code.
Sam

Posted on May 11, 2009

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Have a 98 honda accord it goes into lockout sometimes will turn over but not start and will not come out of park but if you let it set for awhile it will start and work fine


I can't remember tha name of it but my friend had same problem. Usual worse on a hot sunny day. It's nick named tha shade tree sensor. He could drive to work on morning but got off an it wouldn't start to go home. Il ask him what it was called an get back to u if u like. But was same car same problem

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Idle surges when it warms up.


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