Tahoe 2007 starts rough and smells like gasoline

[DJPoertsch]

Good morning dear friends from the forum.
I wanted to talk to you about whether my assumption was correct. My Tahoe 2007 with currently 424800 km starts very unsteadily after standing for a long time and then smells like petrol. It only runs for about 5 -10 seconds and then it's quiet. No problems even while driving. No check engine light on.
I now suspect that an injector is leaking and that's why I have a rough start and also the smell of gasoline. Can you confirm this or is there perhaps another issue? I would be happy if we could narrow down the issue together.

Best Regards from Germany

Markus

 

[mikez71]

That would also be my guess..

 

[rdezs]

Before diving into the injectors and whatnot, pull your EVAP purge solenoid off the intake manifold... If you can blow air through it, it's stuck open and flooding your intake with fuel vapor creating an overly rich mixture. At your mileage, I'd go ahead and just replace it, they're not expensive.

 

[07burban88]

this is true when ignition off purge valve should be closed

 

[LsHart]

I read this and thought of I am gasoline Kicking Harold.