WHAT ARE SIGNS OF A BAD FRONT AXLE ENGAGEMENT SWITCH

What is the Front Axle Engagement Switch?

The front axle engagement switch is the device which operates the actuator on your 4×4 vehicle, telling it to engage the front differential. It is usually found on the dash of your car, and when you turn it on, your four wheel drive becomes activated. This is what is refered to as an electronic four wheel drive system, as opposed to a manual system which is handled by means of a lever, similar to a gear shift that is found on the floor of the car.

Some drivers would want the manual system, because the automatic system can sometimes take many seconds to engage. If it doesn’t engage at all, the issue could be in the front axle engagement switch.

Bear in mind:

  • If your front axle engagement switch gets worn, the delay in engaging the axle can result in your car being stuck in mud, sand or snow.

How it is done:

  • The faulty front axle engagement switch is discovered
  • The bad front axle engagement switch is taken out
  • The new front axle engagement switch is mounted
  • The switch operation is inspected before removing off of jack stands
  • The car is road tested for proper four wheel drive operation

Recommendation:

The front axle engagement switch is not serviced as part of periodic maintenance. It is possible for the switch to wear out because of use, or for the switch to fail without notice. If you think the front axle engagement switch is the reason your four wheel drive not engaging, have one of our expert mechanics check the system and change the switch if required.

What common signs indicate you may need to change the Front Axle Engagement Switch?

  • Four wheel drive takes longer than usual to engage
  • Four wheel drive won’t engage at all

How vital is this service?

If you’re just driving on pavement in good road conditions, this issue is not critical. However, if you live in an area with high levels of snowfall, or if you’re an off-road enthusiast, you should avoid cases where you’re likely to require the four wheel drive until you have the front axle engagement switch change.

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