Question about 2002 Chevrolet Impala

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2002 chevy impala with 3800 engine has po4402 code

Po442 code

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Hello
Your Code p0442 refers to an emission control leak was detected.
The first place I would start would be to replace the GAS CAP and as for me I would go straight to the dealer and buy it and not buy a aftermarket one.
If that does NOT do the trick :-O now Houston we have a problem it could be one of over guessing 10-20 small vacuum lines that could be leaking. But NO FEAR my money is 10/1 it's the gas cap. And make sure every time you full the tank the cap is tight.
Being a 2002 that cap's been off and on a million times, well almost
LOL and I am sure it's toast!!!!
Be kind and be safe.
Mark aka RagenRat

2002 chevy impala with 3800 engine has po4402 code - d69d4986-9c94-4814-9418-2b08961d8312.jpg

Posted on May 12, 2014

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