How to Set High Idle on 2019 Duramax

How To Set High Idle On 2019 Duramax

How to Set High Idle on 2019 Duramax

Purchasing a 2019 Duramax truck comes with a range of exciting features and functions. One such feature is the ability to set a high idle. The high idle feature can be advantageous in various scenarios, including colder climates or when you require constant power supply while stationary for extended periods of time.

Step-by-Step Guide to Setting High Idle on a 2019 Duramax

Here’s a detailed guide on how to set high idle on your 2019 Duramax:

  1. Start your Duramax truck and ensure it is in park or neutral
  2. Locate the accelerator pedal position sensor on the driver’s side of the engine compartment
  3. Disconnect the sensor by removing the wiring harness connector
  4. Using a wire jumper, connect terminals 1 and 5 of the wiring harness connector
  5. Turn the ignition switch to the “ON” position without starting the engine
  6. You will hear the engine RPM increase once the high idle is activated
  7. Once the desired RPM is reached, turn off the ignition
  8. Disconnect the wire jumper and reconnect the wiring harness connector to the accelerator pedal position sensor
  9. Start the engine to ensure the high idle has been set correctly

Please note that the specific steps may vary slightly depending on your Duramax model and any modifications made to the vehicle. It’s always advisable to consult the owner’s manual or reach out to a professional if you have any concerns or questions.

Advantages of Setting High Idle on a 2019 Duramax

Setting high idle on your 2019 Duramax can provide several benefits:

  • Improved Cold Weather Starting: In colder climates, setting high idle can help warm up the engine faster, reducing wear and tear on the vehicle’s components.
  • Increased Electrical Power: The high idle feature ensures a constant supply of electrical power, ideal for situations where you need to use accessories or power external devices while the engine is idling.
  • Reduced Fuel Consumption: Contrary to popular belief, setting high idle on a Duramax can actually help save fuel. By warming up the engine more efficiently in colder conditions, your vehicle will experience less fuel consumption compared to allowing it to idle at a lower RPM for longer periods.
  • Preventing Engine Stalling: By setting high idle, you can prevent the engine from stalling, particularly if you are using specific accessories that require a higher RPM.
  • Enhanced Comfort: When camping or using your Duramax as a recreational vehicle, the high idle feature ensures you have access to continuous power for appliances and electronics, making your experience more convenient and enjoyable.

Frequently Asked Questions For How To Set High Idle On 2019 Duramax

How Do I Set The High Idle On My 2019 Duramax?

To set the high idle on your 2019 Duramax, start by turning the engine on and letting it warm up. Then, press and release the cruise control button to activate high idle mode.

Why Is It Important To Set High Idle On My Duramax?

Setting high idle on your Duramax is important because it helps to warm up the engine faster, increases engine performance, and reduces wear and tear on engine components.

What Are The Benefits Of Using High Idle On A Duramax?

Using high idle on a Duramax provides several benefits, including faster engine warm-up, improved fuel efficiency, reduced emissions, and a smoother running engine.

Can I Set The High Idle On My Duramax To A Specific Rpm?

Yes, you can set the high idle on your Duramax to a specific RPM by following the instructions in your vehicle’s owner’s manual. This allows you to customize the idle speed according to your preferences or specific needs.

Is It Safe To Use High Idle On My Duramax For Extended Periods?

While using high idle on your Duramax for short periods is generally safe, it is not recommended to use it for extended periods of time. Extended use of high idle can result in unnecessary fuel consumption and potential damage to engine components.

Conclusion

Setting high idle on your 2019 Duramax can be a valuable feature, especially in specific situations where you require consistent power supply or need to warm up the engine efficiently in cold weather. By following the step-by-step guide provided above, you can easily activate the high idle feature and enjoy the benefits it offers. Remember to consult your owner’s manual or seek expert advice if you have any doubts or questions.

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