"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


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

Question type: General

5 Answers


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


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 out of 1 people think this is helpful.

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



Lashon Smith

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

Your Answer

Add photo

Related Questions


Looking for a Used Impala in your area?

CarGurus has 35,893 nationwide Impala listings starting at $700.


Search Chevrolet Impala Questions

Chevrolet Impala Experts

#1 Danny Wang
Danny Wang
Reputation 1,510
#2 FordNut
Reputation 1,360
#3 Tom Demyan
Tom Demyan
Reputation 1,350
View All

Related Models For Sale

Used Chevrolet Malibu"
1,182 Great Deals out of 72,978 listings starting at $695
Used Dodge Charger"
683 Great Deals out of 30,344 listings starting at $1,995
Used Honda Accord"
1,313 Great Deals out of 78,754 listings starting at $1,395
Used Nissan Maxima"
475 Great Deals out of 24,268 listings starting at $800
Used Chrysler 300"
571 Great Deals out of 21,277 listings starting at $1,490
Used Toyota Camry"
1,654 Great Deals out of 99,024 listings starting at $895
Used Nissan Altima"
1,497 Great Deals out of 88,168 listings starting at $1,195
Used Chevrolet Tahoe"
1,146 Great Deals out of 36,615 listings starting at $1,995
Used Ford Mustang"
730 Great Deals out of 41,499 listings starting at $900
Used Ford Fusion"
1,451 Great Deals out of 79,633 listings starting at $1,450
Used Chevrolet Monte Carlo"
13 Great Deals out of 2,073 listings starting at $2,900
Used Buick LaCrosse"
404 Great Deals out of 18,432 listings starting at $1,200

Used Cars For Sale

2016 Chevrolet Impala LTZ For Sale
4 Great Deals out of 26 listings starting at $23,000
2015 Chevrolet Impala LTZ For Sale
6 Great Deals out of 154 listings starting at $18,895
2014 Chevrolet Impala LTZ For Sale
4 Great Deals out of 90 listings starting at $17,748
2013 Chevrolet Impala LTZ For Sale
26 Great Deals out of 546 listings starting at $7,488