I have a 2011 Chevy traverse and recently my remote start stopped working. I noticed the check engine light in

Asked by Mar 08, 2016 at 02:54 PM about the 2011 Chevrolet Traverse LT1

Question type: Maintenance & Repair

My check engine light came on and I ran the diagnostic. The following code is
what it shows P0496 evaporative emission system high purge flow.

Can I fix this myself?

3 Answers

76,245

I would think so, this is what it is all about...P0496 CHEVROLET - Evaporative Emission System Flow During Non-Purge... Possible causes... - Faulty EVAP Canister Vent Valve - Faulty EVAP Canister Purge valve - Plugged EVAP canister condition - Faulty EVAP Pressure Sensor - EVAP Canister Vent Valve harness is open or shorted - EVAP Canister Vent Valve circuit poor electrical connection... The ECM has detected pressure in the EVAP system during a non-purge condition.... P0496 Chevrolet Description... The evaporative emission (EVAP) control system limits fuel vapors from escaping into the atmosphere. Fuel tank vapors are allowed to move from the fuel tank, due to pressure in the tank, through the vapor pipe, into the EVAP canister. Carbon in the canister absorbs and stores the fuel vapors. Excess pressure is vented through the vent line and EVAP vent solenoid to the atmosphere. The EVAP canister stores the fuel vapors until the engine is able to use them. At an appropriate time, the PCM will command the EVAP purge valve open, allowing engine vacuum to be applied to the EVAP canister. With the EVAP vent valve open, fresh air will be drawn through the valve and vent line to the EVAP canister. Fresh air is drawn through the canister, pulling fuel vapors from the carbon. The air/fuel vapor mixture continues through the EVAP purge pipe and EVAP purge valve into the intake manifold to be consumed during normal combustion. The EVAP system requires the PCM be able to detect a leak as small as 0.040 inch in the EVAP system. The PCM uses several tests to determine if the EVAP system is leaking.

2 of 2 people found this helpful.

So -any thoughts as to what part I would need to replace to fix?

76,245

Ok, because you have a code, thats why the remote start is not working. It only works when there are no codes. After getting the code fixed and cleared, possible the remote may have to relearn for communications. The cause being the EVAP system code. I am suspecting the vapor canister may have gas into it. If you top of the gas tank, that is a no, no, as the excess fuel will seep into the filter that is inside the canister, not allowing the fumes to purge from the system. This is my educated guess. EVAP systems can be difficult to trouble shoot for any mechanic. So have you ben topping the gas tank off? Only suppose to fill until the nossel clicks off.

2 of 2 people found this helpful.

Your Answer

Traverse

Looking for a Used Traverse in your area?

CarGurus has 34,657 nationwide Traverse listings starting at $2,995.

ZIP:

Chevrolet Traverse Experts

  • #1
    Tom Demyan
    Reputation
    370
  • #2
    Mike Bonnell
    Reputation
    170
  • #3
    Rowefast
    Reputation
    160
View All

Related Models For Sale

Used GMC Acadia
1,003 Great Deals out of 51,288 listings starting at $1,900
Used Chevrolet Equinox
1,104 Great Deals out of 67,972 listings starting at $760
Used Buick Enclave
486 Great Deals out of 22,904 listings starting at $3,990
Used Chevrolet Tahoe
803 Great Deals out of 41,553 listings starting at $1,987
Used Ford Explorer
1,179 Great Deals out of 68,804 listings starting at $750
Used Dodge Durango
338 Great Deals out of 24,061 listings starting at $1,500
Used Toyota Highlander
581 Great Deals out of 35,931 listings starting at $2,500
Used Honda Pilot
656 Great Deals out of 40,582 listings starting at $998
Used GMC Terrain
465 Great Deals out of 29,809 listings starting at $5,750
Used Kia Sorento
474 Great Deals out of 31,835 listings starting at $2,399
Used Nissan Pathfinder
473 Great Deals out of 25,087 listings starting at $2,388
Used Jeep Grand Cherokee
1,031 Great Deals out of 71,580 listings starting at $1,195
Used Chevrolet Silverado 1500
2,568 Great Deals out of 173,246 listings starting at $955
Used GMC Yukon
579 Great Deals out of 20,676 listings starting at $2,695
Used Chevrolet Suburban
472 Great Deals out of 23,913 listings starting at $1,799

Used Cars For Sale

2018 Chevrolet Traverse For Sale
8 Great Deals out of 14,107 listings starting at $25,545
2017 Chevrolet Traverse For Sale
161 Great Deals out of 7,415 listings starting at $17,999
2016 Chevrolet Traverse For Sale
67 Great Deals out of 1,777 listings starting at $13,995
2015 Chevrolet Traverse For Sale
179 Great Deals out of 3,159 listings starting at $9,995
2014 Chevrolet Traverse For Sale
109 Great Deals out of 2,436 listings starting at $10,900

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.