Question about GMC Cars & Trucks
Shakes while idling and stall at street light ,when light turns green ! Engine light flashing . It has new spark plugs & wires
Posted by Anonymous on
Your description could indicate a misfire and as you haven't complained about a poor road performance it could be injector or compression related or perhaps an intake air leak.
A code read should indicate the reason for the flashing engine light but other than that I suggest you begin with a thorough and careful tuneup.
Posted on Apr 28, 2017
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Posted on Jan 02, 2017
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