Question about 2005 Pontiac Bonneville

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Service engine light comes on 2006 pontiac blonnie, code 0440, what is it and how do I fix it

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First thing to check is whether the gas cap is on tightly. If it is, the next would be to replace the gas cap. That solves 90% of these problems.

P0440 is a generic code for Evaporative Emission Control System Malfunction... pretty much for all makes. It takes 1 malfunction to create a pending DTC... at 2 consecutive malfunctions the MIL(Malfunction Indicator Light,Check Engine Light, etc.} Ok, after you fix it, it should take 3 trips to turn off the light, then 40 more to Remove the code from the computers memory

Posted on Oct 04, 2009

Testimonial: "I bought a new Gas cap from an aftermarket store, used Steel wool around the filler pipe, very light sanding and light is now off, lets hope for good "

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Go 2 any autozone store and they will do a scan and identify the correct malfunction and what u need to repair the problem free of charge

Posted on Oct 04, 2009

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