Quadrajet Experts Please Help!
My 72 has a 4MV Quadrajet carb. The engine starts and runs great (seemingly perfect choke operation) but the secondaries do not seem to ever open. I somewhat understand that the divorced choke prevents the secondaries from opening up but as it warms up and relaxes, the secondaries are able to open. I drove the truck for about 15 minutes and brought it back into the garage and looked at the linkage on the passenger side. It looks like the vacuum diaphram is pulled in and preventing the secondaries from opening. Please help me!
|