What is causing this Check engine light

5

Asked by Geörge Oct 10, 2016 at 05:11 PM about the 2006 Chevrolet Impala 3.5L LT FWD

Question type: Maintenance & Repair

My check engine light is on and solid on my 2006 impala LT 3.9L V6. the
message center is telling me to tighten my gas cap... ive replaced gas cap 4
times now and got the car scanned for codes...got a P0455 so i replaced my
purge valve solenoid which is located on the top of the engine with no success
anything else that would cause this issue?

2 Answers
125

alpha211 answered 8 years ago

You need to smoke test the evap system to determine where the leak could be. It's the only way to isolate the problem component without replacing all the components of the system. The top two hits on identifix are the purge valve, which you already did, and the gas cap, which you already did. It could be the fuel tank pressure sensor, but without a smoke machine its jut guess work.

10 people found this helpful.
Mark helpful
150

GuruWHYHN answered 6 years ago

Hi my check engine light is on, the code is po449 I'm trying to figure out the part or sensor I need to fix the problem

15 people found this helpful.
Mark helpful

Your Answer:

Related Questions

Impala

Looking for a Used Impala in your area?

CarGurus has 94 nationwide Impala listings starting at $3,495.

Postal Code:

Shortcuts

Search Chevrolet Impala Questions

CarGurus Experts

  • #1
    Rowefast
    Reputation
    6,260
  • #2
    James Sparrow
    Reputation
    4,650
  • #3
    dandyoun
    Reputation
    4,130
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Malibu
54 Great Deals out of 1,092 listings starting at $1,495
Used Dodge Charger
39 Great Deals out of 725 listings starting at $5,995
Used Honda Accord
55 Great Deals out of 995 listings starting at $2,000
Used Toyota Camry
60 Great Deals out of 1,072 listings starting at $3,995
Used Chevrolet Tahoe
14 Great Deals out of 896 listings starting at $12,900
Used Chevrolet Silverado 1500
195 Great Deals out of 5,877 listings starting at $2,975
Used Chrysler 300
33 Great Deals out of 548 listings starting at $3,999
Used Buick LaCrosse
3 Great Deals out of 30 listings starting at $4,995
Used Ford F-150
309 Great Deals out of 13,933 listings starting at $1,712
Used Nissan Altima
25 Great Deals out of 760 listings starting at $1,999
Used Nissan Maxima
7 Great Deals out of 166 listings starting at $4,378
Used Jeep Grand Cherokee
109 Great Deals out of 3,136 listings starting at $3,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.