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1990 Mercedes-Benz 420SEL Question: excessive smoking

 

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dave boyle, Chehalis, WA, October 07, 2010, 12:48
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car smokes after being driven for half hour around town or up hill, car has 148,000 miles and has been resonably well maintained. It uses about 1 quart oil per 3,000 miles. Thanks.

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  • Answer #1

    Auburn Foreign & Domestic (194 Answers) , Auburn, WA - (253) 259-3676
    Greg-Julia October 12, 2010, 17:05
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     Journeyman

    Worn valve guides or failed valve guide seals and piston rings worn or sticky can cause that concern. Greg

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    Visitor, November 12, 2010, 09:51

    Thanks-sorry to get bacxk so late

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