The Ford Barn - View Single Post - Increasing RPMs when shifting Fordomatic into Drive

rotorwrench · 05-06-2021, 10:17 AM

Dashpots slow throttle closing for automatic cars but they weren't set up to increase the throttle position in that era. Many years later there were idle solenoids that increase rpm but mostly for engines loaded with air conditioning and other power robbing accessories.

The original idle settings for the cars with the old Ford-O-Matic were such that the engine should idle just fine when placed in drive. Let it idle long enough for the transmission to circulate some oil for a bit before shifting will insure that the system self purges any air that is in the passages before loading up the 2nd or reverse gear clutch. Most FOM transmissions of that era start out in 2nd unless the driver selects low. If a person has to reverse to get out of the drive way then it would be the first logical selection.

05-06-2021, 10:17 AM	#5
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,436	Re: Increasing RPMs when shifting Fordomatic into Drive Dashpots slow throttle closing for automatic cars but they weren't set up to increase the throttle position in that era. Many years later there were idle solenoids that increase rpm but mostly for engines loaded with air conditioning and other power robbing accessories. The original idle settings for the cars with the old Ford-O-Matic were such that the engine should idle just fine when placed in drive. Let it idle long enough for the transmission to circulate some oil for a bit before shifting will insure that the system self purges any air that is in the passages before loading up the 2nd or reverse gear clutch. Most FOM transmissions of that era start out in 2nd unless the driver selects low. If a person has to reverse to get out of the drive way then it would be the first logical selection.