View Full Version : 72 coupe deville hesitates and then lunges

05-25-11, 09:25 AM
I have a 72 coupe deville with a 472 motor that jumps when i put it in gear rev or drive and while i drive there is a high rev while driving until i push down the gas pedal until it launches and then its fine. I am lost as to where to begin is the carburator adjusted to high,is there a vaccum leak . Any idea where to start is greatly appricated

05-25-11, 05:12 PM
Sounds like Carb to me.

05-26-11, 07:20 AM
i did some trouble shooting found out the vaccum advance wasnt plugged to the vaccum line and the distrubtor wasnt secure had to tighten up the hold down bolt. now i need to figure out how to get it from turning left and right and get my timing adjusted