Carburetor surges when stopping?

Tiny
MIKE SZCZEPANSKI
  • MEMBER
  • 1972 CHEVROLET CORVETTE
  • 5.7L
  • V8
  • 2WD
  • MANUAL
  • 58,000 MILES
Quadrajet carburetor surges when stopping or stopped from1000rpm drops to 500 rpm
Saturday, April 18th, 2026 AT 9:47 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 55,512 POSTS
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

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Sunday, April 19th, 2026 AT 8:33 AM

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