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

Cleaning the throttle plate and throttle plate diameter on the 4.8L, 5.3L, and vi.0L GM electronic throttle trunk is i of the almost important routine maintenance services that should to exist washed on your GM pickup or SUV. Why?

Well, when glue and other oil and carbon deposits form behind the throttle plate and accumulate 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 testify you lot how to do it and offer some specific tips to get the job done without head-aches and/or complications.

In case you lot're needing more info on GM's Electronic Throttle Control, these articles may help:

TPS Sensor

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

APP Sensor one

  1. How To Test The GM Accelerator Pedal Position (APP) Sensor i.
  2. How To Test The GM Accelerator Pedal Position (APP) Sensor 2.
  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 iv.8L, 5.3L, half dozen.0L) (en: autotecnico-online.com).

Symptoms Of A Muddy Throttle Body

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

  1. Viscid gas pedal awareness felt as a hesitation when you accelerate the engine.
  2. Rough idle.
  3. Failure of the Throttle Actuator Control (TAC) motor drive gears.
    1. In extreme cases, the deposits can get so built upward that the throttle torso plate will become stuck, striping out the plastic gear drive of the TAC motor.

Just as changing the oil in your GM pick upwardly or SUV is a must do service... cleaning the TAC throttle torso is only equally important.

Nuts Of Cleaning The Electronic Throttle Trunk

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

  1. The cleaning spray that you lot utilise must not incorporate Methyl Ethyl Ketone (MEK).
    1. This means that you can not use about (if not all) brands of carburetor cleaner spray.
    2. Methyl ethyl ketone is non corrosive for metals, only attacks certain plastics and materials including natural condom, nitrile rubber, polyvinyl chloride, Viton®, certain acrylics and celluloses.
    3. These are the materials almost of the components on the intake manifold, plastic plenum, and the insides of the electronic throttle body are made upwards of on your GM vehicle.
    4. Other Names for MEK: two-Butanone;  Butanone;  Methyl acetone;  Butan-two-one;  Methylpropane-two;  Butanone-ii;  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 commuter to scrape of the deposits that have accumulated on the throttle plate or throttle bore.
    1. Physically scraping the deposits will leave gouges in the soft aluminum metal the throttle trunk is made upwards of and this volition affect idle quality.

Let's spring to the next page and go cleaning...