'66 problem with fuel system
Thread Starter
Cruising
Joined: Aug 2013
Posts: 11
Likes: 0
From: FORT LAUDERDALE FL
'66 problem with fuel system
The Problem:
for several weeks the car started to "buck" as if it were running out of fuel during normal driving and the engine would quit. The problem got worse when the brakes were engaged. On a hunch, i filled the gas tank to full, that cured the issue temporarily. During the stall, if i stepped on the gas peddle, I would here a vacuum-type sucking noise. Im pretty sure that was coming off the Carb that was empty of fuel.
1. we replaced the Carb with a new Holley, did not solve the problem.
2. we removed the gas tank sending unit, was checked and is working properly.
3. Next we will replace the fuel pump. (NOT YET DONE)
has anyone experienced this type of problem, and, if so, what was the fix?
THX
for several weeks the car started to "buck" as if it were running out of fuel during normal driving and the engine would quit. The problem got worse when the brakes were engaged. On a hunch, i filled the gas tank to full, that cured the issue temporarily. During the stall, if i stepped on the gas peddle, I would here a vacuum-type sucking noise. Im pretty sure that was coming off the Carb that was empty of fuel.
1. we replaced the Carb with a new Holley, did not solve the problem.
2. we removed the gas tank sending unit, was checked and is working properly.
3. Next we will replace the fuel pump. (NOT YET DONE)
has anyone experienced this type of problem, and, if so, what was the fix?
THX
Melting Slicks<br><img src="/forums/images/ranks/3k-4k.gif" border="0">
Joined: Mar 2008
Posts: 3,274
Likes: 2,219
From: Colorado Springs Colorado
2024 C2 of the Year Finalist - Modified
2023 C2 of the Year Finalist - Unmodified
Haven't had it happen, but it does sound like a fuel pump problem.
Le Mans Master
Joined: Nov 2003
Posts: 5,772
Likes: 694
From: Maryland
St. Jude Donor '05, '09, '15
Does the car start right back up when it stalls? Check for spark and fuel when it won't start. Then search for what is missing. Much cheaper and efficient method than just replacing parts. 
Tom
Tom
Thread Starter
Cruising
Joined: Aug 2013
Posts: 11
Likes: 0
From: FORT LAUDERDALE FL
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I'm with Tampa Jerry, have seen a few with a non vented gas cap causing stalling and running out of fuel concerns. Leave the gas cap loose and road test it to see if it still happens.
