I have a 2001 bonneville that has 144,000 miles. Two weeks ago my car start sputtering and the check engine light was flashing. So 1 code I keep seeing is 0440. I have turned up the car. New plugs

Asked by Bhaddie Mar 25, 2015 at 11:04 PM about the 2001 Pontiac Bonneville SE

Question type: Maintenance & Repair

New plugs and wires. Air filter, new egr
valve, fuel filter and where the spark plugs
go guess the module brand new replaced.
The sputtering stop but the check engine
light won't go away. What else can I do to
fix this issue? I need to pass emissions by
end of this month.

30,520

mikeatpriestlake answered 9 years ago

That is an evap code. Could be bad /loose gas cap, bad purge solenoid or canister, or a leak somewhere in the evap system. Topping off the gas tank can cause this, gas gets into the vent of the evap system. The most common problem is a gas cap though.

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Guru1HLWJ answered 5 years ago

Where is the vent valve located on 02 Bonneville under the hood

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I have a 2001 bonneville that has 144,000 miles. Two weeks ago my car start sputtering and the check engine light was flashing. So 1 code I keep seeing is 0440. I have turned up the car. New plugs

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I have a 2001 bonneville that has 144,000 miles. Two weeks ago my car start sputtering and the check engine light was flashing. So 1 code I keep seeing is 0440. I have turned up the car. New plugs

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