Problem Reports » Check Engine Light Due to Gas Cap Issue

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Buick LaCrosse

 

Report: Check Engine Light Due to Gas Cap Issue

Buick LaCrosse Problem
18 Reports
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Model Years Affected: 2005, 2006, 2007, 2008, 2009, 2010

Average Mileage: 41,567 mi (10 mi - 73,200 mi)

Verified

A Loose or worn gas cap may cause Check Engine Light to illuminate.

  •  Rookie

    Check engine light stayed on. Remote diagnostic (Onstar)indicated that problem was with the gas cap. Took car to dealer, told them and they replaced the cap. Problem resolved.

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  • Visitor, 2006 Buick LaCrosse, 10 mi

    my b
    LaCross has done this since day one I have had it back in a dozon times and was told that sensors are to senitive. this is from dealer!

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  • Visitor, 2007 Buick LaCrosse, 55,000 mi

    Check engine light and loose gas cap information came on at same time - but cap was tight. Dealer had better price on cap than parts stores. Issue solved.

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  • This has happened twice. The first time (under warrenty) an emissions valve was replaced & the light went off. The 2nd time (80K) the battery was replaced and the light went off for a month, but then came back on. Now (90k) the check engine light is always on & the gas cap message comes on intermittantly.

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  • Visitor, 2006 Buick LaCrosse, 52,000 mi

    I have selected "me too" to 3 other common problems with the Lacrosse. I contacted buick for assistance on repairs and they said Garber Buick in Saginaw Michigan would only agree to $50 assistance on a $443 repair bill. How sad! But they had no problem taking bail out assistance from my tax paying money!!!!!!!!!!!!

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  •  Enthusiast

    We had this issue too. Mechanic found the problem.

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  • Visitor, 2005 Buick LaCrosse, 37,000 mi

    Check engine light
    Leak in pressurized system
    Gas inlet defective
    Replaced $77 at dealer

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  •  Rookie

    engine light

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