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1970 Fleetwood vibration

Started by jwwseville60, April 09, 2024, 07:50:57 AM

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jwwseville60

On my 1970, the engine runs smooth. In neutral its smooth, but
when I put it in drive it vibrates the whole front end when stationary.
73000 miles on her.

Runs perfect at speed.
What could this be?
A bad torque converter?

Thanks!
1960 Eldorado Seville, Copper, "IKE"
1961 CDV, gold, "Goldfinger"
1964 Eldorado, Turquoise, "Billy the Squid"
1963 De Ville Station Wagon Vista roof, silver blue, "Race Bannon"
1963 Fleetwood 60S, turquoise, "The Miami Special"
1959 Sedan Deville flat top, tan, "Jupiter-2"
1947 Caddy Sedanette 62, black, "Johnny Cash"
1970 ASC Fleetwood wagon, dark blue, "Iron Maiden"
Lifetime CLC

"Cadillac Kid" Greg Surfas 15364

First thing I would check would be the distributor vacuum advance.
Greg Surfas
Cadillac Kid-Greg Surfas
Director Modified Chapter CLC
CLC #15364
66 Coupe deVille (now gone to the UK)
72 Eldo Cpe  (now cruising the sands in Quatar)
73 Coupe deVille
75 Coupe deElegance
76 Coupe deVille
79 Coupe de ville with "Paris" (pick up) option and 472 motor
514 inch motor now in '73-