May be computer controlled and not adjustable
95 buick century
the Century first joined the Buick lineup in the late 1930s to emphasize the car's advertised top speed of 100 mph. Without modification that has remained the top speed of the stock vehicle.
behind the motor you can only see it on a lift
you cant without having a remap. its controlled electonically by the ecu via the Idle air control valve on the throttle body. generally only vehicles fitted with carburetor can adjust idle speed manually.
Transmission is a 4 speed,, electronically controlled. with overdrive.
there is no way to adjust the idle speed on these engines, it is all computer controlled. unless you are looking for the IAC (idle/air control valve), that is on the throttle body, and uses a 1" wrench to remove after unplugging it.
The computer does it for you through the IAC valve Idle air control its under throttle body intake hose.
i have a 1998 buick century and my blower motor is under the passenger side front wall inside.I found out that the blower motor resister was the problem.if it works on high speed only,replace the resistor first.it's cheaper but harder to get at.
The sensor is locatedon the top back of the transmission. You have to remove the air filter, and housing to easily get at at.
This is programed in the prom in the computer. Check the throtle cable adjustment to see if it is correct.
It can be anything from the printed circuit in the dash to the speed sensor on the trans. Have it checked out by a good mechanic.
how do you replace a 2004 buick rendezvous input speed sensor