carburetor surges when stopping?

1972 CHEVROLET CORVETTE
58,000 MILES • 5.7L • V8 • 2WD • MANUAL
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MIKE SZCZEPANSKI
quadrajet carburetor surges when stopping or stopped from1000rpm drops to 500 rpm
Apr 18, 2026 at 9:47 AM
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STRAILER
  • ✓ASE Certified Mechanic
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Yep, it will do this when you have a vacuum leak, I would check the vacuum lines at the base of the carb along with the gasket and also check the PCV valve. You should check the carb mounting bolts/nuts as well I have seen those come loose, this video will help you find the leak.

https://www.youtube.com/watch?v=LRKWV4Are5c

Let us know how it goes


Apr 19, 2026 at 8:33 AM
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