Cleaning The GM Electronic Throttle Body (4.8L, 5.3L, 6.0L)

Cleaning the throttle plate and throttle plate bore on the 4.8L, v.3L, and 6.0L GM electronic throttle body is 1 of the most important routine maintenance services that should to be done on your GM pickup or SUV. Why?

Well, when gum and other oil and carbon deposits form backside the throttle plate and accrue to the point that they may interfere with the throttle plate movement and strip the plastic gears that make up the Throttle Actuator Motor that opens and closes the throttle plate.

In this article, I'll bear witness you how to do it and offer some specific tips to get the job done without head-aches and/or complications.

In case you're needing more than info on GM'due south Electronic Throttle Control, these articles may help:

TPS Sensor

  1. GM Electronic Throttle Body Excursion Descriptions And Testing Tips.
  2. P0120 TP Sensor 1 Circuit Malfunction (With Electronic Throttle Trunk).
  3. P0220 TP Sensor 2 Circuit Malfunction (With Electronic Throttle Body).
  4. Resistance Specifications Of The TAC Electronic Throttle Body.

APP Sensor one

  1. How To Test The GM Accelerator Pedal Position (APP) Sensor i.
  2. How To Exam The GM Accelerator Pedal Position (APP) Sensor ii.
  3. Resistance Specifications Of APP Sensor 1, APP Sensor 2.

En Español Puedes encontrar este tutorial en Español aquí: Cómo Limpiar el Cuerpo del Acelerador Electrónico (GM 4.8L, v.3L, six.0L) (en: autotecnico-online.com).

Symptoms Of A Dirty Throttle Torso

These are the most common symptoms of a dirty electronic throttle torso:

  1. Viscid gas pedal sensation felt as a hesitation when you lot advance the engine.
  2. Crude idle.
  3. Failure of the Throttle Actuator Control (TAC) motor drive gears.
    1. In extreme cases, the deposits can go and then built upward that the throttle body plate will become stuck, striping out the plastic gear drive of the TAC motor.

Simply as irresolute the oil in your GM option upwards or SUV is a must practise service... cleaning the TAC throttle trunk is only as important.

Basics Of Cleaning The Electronic Throttle Body

Cleaning the electronic throttle trunk is not hard to do. But you do need to have some very important precautions:

  1. The cleaning spray that you employ must not contain Methyl Ethyl Ketone (MEK).
    1. This ways that you tin can not use well-nigh (if not all) brands of carburetor cleaner spray.
    2. Methyl ethyl ketone is not corrosive for metals, only attacks certain plastics and materials including natural rubber, nitrile rubber, polyvinyl chloride, Viton®, certain acrylics and celluloses.
    3. These are the materials near of the components on the intake manifold, plastic plenum, and the insides of the electronic throttle body are made up of on your GM vehicle.
    4. Other Names for MEK: 2-Butanone;  Butanone;  Methyl acetone;  Butan-2-i;  Methylpropane-two;  Butanone-2;  2-oxobutane;  3-Butanone;  Ethyl methyl ketone;  Methylethylketone;  Ethylmethylketone
  2. The recommended throttle cleaner is the: CRC 05078 Throttle Body and Air-Intake Cleaner - 12 Wt Oz..
  3. You lot should NOT use any type of scraper tool or screw driver to scrape of the deposits that accept accumulated on the throttle plate or throttle bore.
    1. Physically scraping the deposits will leave gouges in the soft aluminum metal the throttle torso is fabricated up of and this volition bear upon idle quality.

Let's jump to the adjacent page and get cleaning...