Q: Four-wheel drive thumping noise. 2006 Mazda B4000

asked by on

I have some issues with the four-wheel drive. Each time I switch, I would drive a very short distance and there would be a loud thumping sound as if I hit something on the road. It seems as if there is some slipping out of the four-wheel drive and then slipping back in. This would keep happening as long as it is in the 4WD. What might be causing this?

Hello. It sounds like the transfer case is going bad causing the thumping noise you are hearing. The transfer case transfers power to the front wheels so that all four tires are working during four-wheel drive. If the transfer case is going bad, it may not allow the truck to go into four-wheel drive or it will go into four-wheel drive but cause noise or harsh driving conditions. There could also be a problem with either the front or rear driveshaft being worn out or broken. The transfer case and the drivetrain need to be checked for damage. Have a certified technician, like one from YourMechanic, diagnose the noise and assist you with the appropriate repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. Four-wheel drive thumping noise. 2006 Mazda B4000

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: After recent repair van is giving me problems.

Hi there. From the description you have provided, it would appear once again, you need to return to the repair facility. My thought is, something related to the evaporative emissions system (ie; purge control solenoid) may be disconnected. This would...

Q: I need to know a thermostat on a B4000 I have a thermostat is star brand new thermostat I need to know the number on it

Hi there. I'm not quite sure how we can help you here. If you are looking to have one of our professional mobile mechanics complete a thermostat replacement on your Mazda B4000, you can click this link and enter your...

Q: It has the 3.0 Duratech V6, with a six speed Aisin trans.

What you are describing sounds like possibly low transmission fluid, a bad speed sensor or potentially a faulty transmission control module, which also controls the speed sensors. The transmission control module has various sensors such as vehicle speed sensors, wheel...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.