I have an 07 Chevy Tahoe 4Doors 5.3L V8. Ran diagnostic test bland it came back P0496. Which could be a number of things. The guy that ran the test said he believed it to be the EVAP purge control Valve, where as 6 other believe it to be something else. Anyway it's draining the gas really bad and Everytime I go to put gas in the Tahoe it take a couple cranks and hitting the gas to get it to start bc it don't want to turn over. I'm hoping its nothing serious but if anyone has had any luck with this. Any advise would be appreciated
07 Chevy Tahoe
- Thread starter Nikki89
- Start date
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I think the guy that ran the test is probably right. It sounds like your purge control valve is stuck open.
The check engine light is still on even after I replaced the purge control valve last night
It's sucking the heck out of the gas and I even done a fuel injector treatment last night too
Interesting test for that purge control valve, watch this:
Starts at about 5:00 in and then he replaces the valve and tests again.
Starts at about 5:00 in and then he replaces the valve and tests again.
Might be a fuel tank pressure sensor that can set that code as well. Couple of choices depending on engine code: https://www.rockauto.com/en/moreinfo.php?pk=1022669&cc=1433255&pt=6385&jsn=914
Did you reset the DTC?
