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International Automotive Technicians Network
1964 Chevrolet Corvette 327CID Hesitation
Posted to GM Driveability on 1/22/2008 41 Replies

Hi all, the issue with this classic is the vacuum advance vacuum supply. It's ported vacuum, however the vacuum doesn't drop to zero at idle, but about 2". At this level the vacuum advance stays engaged and the idle is fast. If I lower the idle way down, the v...

41 Replies Received (View Replies)

 
Message Closed w/FIX

car Vehicle Data

1964 Chevrolet Corvette

VIN 40837S1090
Engine327 / 8 cyl
DeliveryCARB / 4 bbl holley
SymptomsHesitation
OccursAlways
Message Closed w/FIX

car Vehicle Data

1964 Chevrolet Corvette

VIN 40837S1090
Engine327 / 8 cyl
DeliveryCARB / 4 bbl holley
SymptomsHesitation
OccursAlways