Drive (D): This position allows the automatic transmission to engage the full range of available forward gear trains, and therefore allows the vehicle to move forward and accelerate through its range of transmission gears. The number of gear 'ratios' an automatic transmission has depends on the model, but they initially ranged from three predominant before the 1990s, to four and five speeds losing popularity to six-speed autos, though still favored by Chrysler, Honda and Acura. Six speed automatic transmissions are now probably the most common offering Toyota Camry V6 models, the Chevrolet Malibu LTZ, Corvette, GM trucks, Pontiac G8, Ford Falcon BF 2005-2007 and Falcon FG 2008 current in Australia with 6 speed ZF, and most newer model Ford, Lincoln, Mercury vehicles. However, seven-speed automobiles are becoming available found in Mercedes 7G gearbox, as are eight speed automobile in the newer models of Lexus and BMW cars and trucks.
What are some signs your automatic transmission has problems? Are you experiencing loss of power upon acceleration? Is your automatic transmission unable to go into gear? Is your automatic transmission not shifting? Is your automatic transmission shifting hard or sifting late? Is your automatic transmission slipping? Is you automatic transmission making a chatter or grinding noise? Is your automatic transmission leaking fluid? Is your car or truck not drivable? Sergeant Clutch Discount Transmission Repair Shop in San Antonio, Texas offers FREE Transmission Performance Check.
