The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Intermittent severe missing or hesitation

Barnfind46 · 03-28-2018, 10:22 AM

The fuel here in DFW causes vapor lock issues at about 190 to 200 degrees on non fuel injected cars and trucks .My truck has had a problem with the temps starting to rise. I installed an electric fuel pump and made a new fuel line that did not hug the engine block. I also put a heat sleeve on the line and a carb spacer. So far so good. We will see what happens when summer gets here. A fuel return line can also help although I have not done that yet. With fuel at 10% ethanol and talk of 15% in the future this may be a real problem for vintage cars and trucks.Hope this helps.

03-28-2018, 10:22 AM	#5
Barnfind46 Registered User Join Date: Aug 2014 Location: Mena,Arkansas Posts: 485	Re: Intermittent severe missing or hesitation The fuel here in DFW causes vapor lock issues at about 190 to 200 degrees on non fuel injected cars and trucks .My truck has had a problem with the temps starting to rise. I installed an electric fuel pump and made a new fuel line that did not hug the engine block. I also put a heat sleeve on the line and a carb spacer. So far so good. We will see what happens when summer gets here. A fuel return line can also help although I have not done that yet. With fuel at 10% ethanol and talk of 15% in the future this may be a real problem for vintage cars and trucks.Hope this helps. __________________ 68' with no bells or whistles unless I add'em.