With the throttle valve closed, measure the accelerator pedal free play (1). The accelerator pedal free play clearance is 2-7 mm (0.08-0.27 in).

Fig 1: Measuring Accelerator Pedal Free Play

Courtesy of GENERAL MOTORS CORP.

Loosen the accelerator cable locknut (2) at the throttle body bracket.
Turn the accelerator cable adjusting nut (1) in order to obtain 2-7 mm (0.08-0.27 in) of accelerator pedal free play.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Tighten the accelerator cable locknut (2).
Tighten: Tighten the locknut to 23 N.m (17 lb ft).
Repeat Step 1 through Step 4 until the accelerator pedal free play is 2-7 mm (0.08-0.27 in).

Fig 2: View Of Accelerator Cable Locknut & Adjusting Nut

Courtesy of GENERAL MOTORS CORP.

With the accelerator pedal fully depressed, measure the clearance (2) between the throttle lever (3) and the throttle stop (1). Check the accelerator cable end play clearance as follows:
- 0.5-2.0 mm (0.02-0.07 in) with a M/T
- 0.8-1.5 mm (0.03-0.06 in) with an A/T

Fig 3: Measuring Clearance Between Throttle Lever & Throttle Stop

Courtesy of GENERAL MOTORS CORP.

Adjust the height of the accelerator pedal stop (1) in order to obtain the following accelerator cable end play:
- 0.5-2.0 mm (0.02-0.07 in) with a M/T
- 0.8-1.5 mm (0.03-0.06 in) with an A/T

Fig 4: Adjusting Height Of Accelerator Pedal Stop

Courtesy of GENERAL MOTORS CORP.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Accelerator Cable Adjustment