Failure of Buick GL6 Electronic Throttle in Power Driving Stage

It may be a throttle failure. Try cleaning it.

Throttle damage can be divided into hard fault and soft fault. The details are as follows: 1. Hard failure refers to mechanical damage. The resistor part of throttle potentiometer is formed by spraying a carbon film on polyester substrate, which is actually a very low-level preparation process with low wear resistance and prone to mechanical failure. 2. Soft fault: refers to dirt, maladjustment, etc. Car owners often worry about cleaning the throttle, because the throttle is opened too low most of the time, and the air flows through the gap of the throttle at high speed (tens to hundreds of meters \u002F seconds), and the accumulated dust has greater influence on the airflow than the throttle's adjustment ability.

You can try it yourself first, if not, find a 4S shop to repair it as soon as possible.