Gasoline smell at WOT - The 1947 - Present Chevrolet & GMC Truck Message Board Network

davepl · 09-13-2016, 01:36 PM

Since swapping the ZZ502 for an LS3 I now get a periodic strong gas smell after getting on the throttle. Tank is in the rear (not the cab) and there are no leaks that I can locate.

I'm running all 4 eRod cats plus a factory transverse muffler, so I'd figure it would burn up any excess fuel, but I guess not.

Has anyone else noticed this? I think it almost has to be in the exhaust, but that's far behind me, dumping behind the rear bumper, and this is while underway of course.

Thoughts? It's not bothersome, really, but I worry about any gasoline fumes that I cannot explain.

09-13-2016, 01:36 PM	#1
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,332	Gasoline smell at WOT Since swapping the ZZ502 for an LS3 I now get a periodic strong gas smell after getting on the throttle. Tank is in the rear (not the cab) and there are no leaks that I can locate. I'm running all 4 eRod cats plus a factory transverse muffler, so I'd figure it would burn up any excess fuel, but I guess not. Has anyone else noticed this? I think it almost has to be in the exhaust, but that's far behind me, dumping behind the rear bumper, and this is while underway of course. Thoughts? It's not bothersome, really, but I worry about any gasoline fumes that I cannot explain. __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible



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