Skip the auto shop - Our mechanics make house calls

Q: 4wd not working, just making a clicking nose

asked by on

4wd is not working, just making a click nose

My car has 240002 miles.
My car has an automatic transmission.

Hi, thanks for writing in. It sounds like you have the NV233 transfercase. The transfercase control module receives input from various sensors and switches, including the tranfercase range switch. It then uses this information to engage the transfercase actuator/encoder motor to engage the four-wheel drive. My guess is that the clicking you hear is the actuator trying to engage the transfercase unsuccessfully. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

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

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: I changed my fuel pump and now I have a gas leak I can see it dripping on the ground. It's a 96 blazer

Hi There, It sounds like you may have a fuel line running to or from the pump that may be leaking. As you know, this can be very dangerous and should be looked at as soon as possible to avoid...

Q: abs and brakes lights cane on

Hello. This may be related to faulty wheel speed sensors which are located at each of the four wheels. These sensors monitor wheel speed which is relayed to the ABS system. When the ABS system detects an abnormal speed for...

Q: Turn light indicators and speedometer malfunctioning

This is a common problem on the Chevy S10 Blazers of this era. There is a small power supply board behind the dash which regulates the transfer of power to these components. These are known for going bad. This can...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...