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thom4782 · 07-04-2015, 10:12 AM

Best guess = small crack at the top of the fuel sending unit. Vapors get expelled when tank 1st pressurizes and then subsides once the engine starts.

Had similar symptoms and that's what it turned out to be.

07-04-2015, 10:12 AM	#3
thom4782 Registered User Join Date: Sep 2010 Location: Foster City CA Posts: 1,099	Best guess = small crack at the top of the fuel sending unit. Vapors get expelled when tank 1st pressurizes and then subsides once the engine starts. Had similar symptoms and that's what it turned out to be.