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Dan, Technician
Category: Buick
Satisfied Customers: 24211
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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Check engine s on n my buick 2003 revendezbos after 30 mph

Customer Question

check engine s on n my buick 2003 revendezbos after 30 mph start blinking what could be?
Submitted: 1 year ago.
Category: Buick
Expert:  Dan replied 1 year ago.

Hello, my name is***** the light is blinking that means a cylinder is misfiring which usually means either spark plug, wire, or ignition coil. I'd start by checking spark strength of each coil lead, replace any coil that does not provide strong spark. If they all have strong spark then replace the plugs/wires. This would be around a $300 job at a shop depending on problem. Let me know if you have more questions, thanks.