C3 Troubleshooting Help
Thread Starter
Heel & Toe
Joined: Apr 2014
Posts: 16
Likes: 0
C3 Troubleshooting Help
So this has been going on for about 2 months now and has stopped me from driving my 79 Corvette... At idle everything is fine but once you put it in gear and slightly accelerate it will stutter, sounds like a misfire and die if you continue to accelerate. I have changed the spark plugs, wires, fuel pump, cleaned the carb and can't seem to successfully troubleshoot this.. If anyone has any ideas or suggestions let me know!
Thanks, Taylor
Thanks, Taylor
Thread Starter
Heel & Toe
Joined: Apr 2014
Posts: 16
Likes: 0
This might sound dumb but this little white thing is the only fuel filter we're talking about? Correct?
This might sound dumb but this little white thing is the only fuel filter we're talking about? Correct?
Le Mans Master
Joined: Aug 2006
Posts: 7,426
Likes: 1,559
From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
Check the accelerator pump again.
There are two rubber line that go from the fuel tank hard line to the fuel pump, they can kink if you don't have the 'Corvette molded' hoses.
Melting Slicks
Joined: Mar 2010
Posts: 2,270
Likes: 375
From: Randolph nj
I would loose that plastic filter ,its not really safe and many people have lost there cars due to them rubbing on the block and melting,cracking from fuel pressure ,,, once the gas runs down the block its game over
Le Mans Master
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
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From: Colorado
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Fuel delivery issues (when they're at the early stages) will come up during periods of high demand - like continued acceleration. A quarter mile run is a great example of "high demand".
The accelerator pump only injects fuel when the throttle angle increases - at the drag strip, that's when you launch and when you transition from launch to WOT. Also, when you re-engage the throttle if you lift to shift.
Hope that helps visualize the problem.