Re: '07 Suburban p0455 but "no" leak
Well, if anyone cares or is having a similar problem, I replaced the purge solenoid and this appears to have fixed the issue. Apparently the solenoid was intermittently not working every once in a while thus setting the code/engine light. The issue was hard to diagnose even by the OBD2 machine (or whatever you call it) that can manually actuate each solenoid, valve, etc. Anyway, that was super annoying and took forever to figure out....but now it is fixed.
Just thought I would give some closure to this thread. I know many people use this website for help in researching and fixing their own vehicles.
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1976 Chevy 454 C-10 Silverado
2004 GMC Sierra 5.3L 1/2 Ton Crew Cab
1968 Camaro SS RS
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