Question about 1998 Saturn SC

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Saturn sc1 starting

My 1998 saturn sc1 is hard to start when its been running a little while, blows black and gray smoke out the back

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  • Anonymous Dec 02, 2008

    i have the same problem. I have to pump once and hold it to the floor. Then when it does start it rev's to 3000 then comes down slow to idel. the smoke goes awey after about a min.

  • Anonymous Dec 03, 2008

    changed fuel pump & filter now it won't start

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  • 73 Answers

Check coolant temp sensor located at driver side end of cyl head. remove sensor and check or cracks. also check connector for corrosion. if cracked, go to dealer for replacment. they eill sell you a new designed metal sensor to replace your cracked plastic one. dont buy aftermarket, they will not be accurate. cracked sensor will cause eng. to run rich. may start ok cold but not when hot.

Posted on Mar 31, 2009

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