Skip the auto shop - Our mechanics make house calls

Q: 4x4 Low Light jolts

asked by on

My truck is flashing a yellow 4 low light on the dashboard. And when I drive it over 30 mph it jolts all the time. Do you have any idea what’s wrong and how I can fix this?

A: Hello. It sounds like the transfer case is ...

Hello. It sounds like the transfer case is staying engaged. This is usually due to the encoder motor failing and causing this. I usually check the connections first to see if there is any moisture in them as that will cause this. If the connections are fine then I replace the encoder. If you want to have this looked at, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose the warning light and help you proceed with repair.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: SUV parked for three years

Hi. Parking a vehicle for that long is never good. Things like wiring, starter, fuel pump, and transmission can all go bad from lack of use. In severe cases, engines do seize up from rusting internally due to lack of...

Q: What does the fog light indicator mean?

The fog light indicator is located on the instrument panel. When the indicator is illuminated, it means that your fog lights are currently turned on.

Q: Vibration on startup - 2004 Nissan Sentra

A lengthy Technical Service Bulletin (TSB) dealing with this issue was published by Nissan in 2006. The TSB outlines a repair procedure for the fuel pump that resolves a known issue with fuel leaking back into the tank instead of...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...