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p0440

eroth

eroth

New member
i need any suggestions my car has been setting the p0440 code for a while. i have been over and over the vac lines and have not found any leaks. i changed the gas cap and reset the mil and it is back on again. any suggestions??? my badd for posting in the wrong section first time
 


God I hate this code. My Dad's truck has been throwing it for years, and we haven't been able to track it down yet.
 
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