The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Help trying to fix vapor lock run into other issues

nightrider388 · 04-18-2023, 08:13 AM

Sounds more like air lock in the tank. There are several mentions of having to drill a tiny hole in the aftermarket fuel caps that only let air out and not in.

04-18-2023, 08:13 AM	#13
nightrider388 Registered User Join Date: Jul 2016 Location: Arkansas Posts: 147	Re: Help trying to fix vapor lock run into other issues Sounds more like air lock in the tank. There are several mentions of having to drill a tiny hole in the aftermarket fuel caps that only let air out and not in.