"My car has been jerking and doesn't want to take off when I'm driving, I thought it was the transmission, i took it to oreillys and put it on the machine and these coDes came up p0442 and p0455

10

Asked by Dec 07, 2014 at 03:55 PM about the 2006 Chevrolet Impala LTZ

Question type: General

5 Answers

79,125

These are both trouble codes for the EVAP system. The EVAP system sucks gasoline fumes back into the engine to be burned up instead of realising the fumes into the air. The computer has detected both a small leak (P0442) and a large leak (P0455). First thing I'd do is make sure the gas cap is on securely. If it is, replace the gas cap, they're cheap. If that doesn't solve the problem you'll need a smoke test. Since your Impala is a 2006 model the leak triggering the check engine light may be so small that it can't be seen with the naked eye. A smoke test will reveal the leak. The shop will force harmless smoke into the gas tank then check the EVAP system lines going from the tank to the engine for smoke coming out. Once they see the smoke seeping out they've found the leak. HTH. -Jim

2 people found this helpful.
10

Ok thank you I took it too a family machanic that my parents know he had me to buy something called bwd, engine management technology.. The jerking stop but now it seems as if it's losing speed when I'm driving likes its going into neutral..

1 people found this helpful.
10

What exactly did u get to fix it I'm Ha information the Same problem with a large leak

1 people found this helpful.
10

Having

Hello I have a large evap leak can this problem cause my engine to stall on me

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