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1999 Saturn SL1 Question: miss at high speed



mechanics, DOHC, Dallas, TX, May 20, 2009, 19:41

will not idle in gear misses at high speed

2 Answers
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  • Answer #1

    dandd May 21, 2009, 17:44

    Do you have a Service Engine Soon on? If so, retrieve and fix the code(s). This is where to start. How many miles on your Saturn and when was the last time the plugs were replaced? Does it have plug wires and if so, how are they?

    Ok. At what speed exactly does your Saturn start to miss and does it do it cold, warm and hot?

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  • Reply

    mechanics, May 21, 2009, 19:56

    spark is ok no check engine lights on

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  • Answer #2

    Visitor, February 24, 2011, 21:10

    it could be a miss fire in ether number four plug or number one and also check for caron build up in the wire plugs them selfs

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