C 1500 Suburban 2WD V8-4.8L VIN V (2002)
excess material (1) from plug.
8.
Turn ignition key to the on position, with engine off.
9.
Use the Tech 2 Scan tool to read initial TPS voltage.
Important:
TPS voltage cannot exceed .69V. If the vehicle has an initial TPS voltage greater than .61V, replace the Throttle Body Assembly. This part is
currently on parts restriction. Contact the General Motors Powertrain Quality Center for assistance.
10.
Using the Tech 2 Scan tool and a T15 driver to rotate the Minimum Air Rate screw, increase TPS voltage by.08 Volts (Refer to TPS Voltage
Chart shown).
11.
Turn ignition key to the off position. Verify that the accelerator pedal moves freely - Depress the accelerator pedal to the floor and release.
12.
Install the air intake duct. Refer to Air Cleaner Duct Replacement.
13.
Start engine.
14.
Using the Tech 2 scan tool, monitor TPS voltage and verify the TPS voltage is no greater than 0.69V.
15.
Road Test Vehicle.
Important:
If an increased accelerator pedal effort condition still exists after performing this bulletin, throttle body replacement may be required.
Please contact the General Motors Powertrain Quality Center for assistance, as the throttle body is currently on a parts restriction program.
Parts Information
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty use the table shown.
