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4WD

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Symptoms of a Bad or Failing Front Axle Engagement Switch
If your car has four-wheel drive but the system cannot engage, gets stuck, or does not activate, consider replacing the front axle engagement switch.
B2106 OBD-II Trouble Code: Throttle Position Input Out of Range High
B2106 trouble code means there's a range issue with the throttle position input in a 4WD system, caused by a damaged circuit in the 4WD system.
How to Rent a 4WD Vehicle
Rental vehicle companies provide you with the option to choose different vehicles to suit your needs. Rental companies have fleets of vehicles that contain sub-compact through luxury full-size...
How All Wheel Drive Works
What is All-Wheel Drive? All-Wheel Drive (AWD) vehicles send power to all four of the wheels. This can be done in a number of ways but the end goal is improved traction...
How Long Does a Front Axle Engagement Switch Last?
If you drive a 4x4 vehicle then you have what is called a front axel engagement switch. This switch is responsible for controlling your actuator, which is what signals the...
3 Essential Things to Know about Four-Wheel Drive (4WD)
Four-wheel drive is a form of drivetrain. A four-wheel drive vehicle has two or more axles, which provide power to four wheel ends. These vehicles have a transfer case, which means the...
5 Essential Things to Know About Off-Roading
Ah, the thrill of going off-road! If you’ve done it, you know there’s nothing better than showing off your expertise and skill. However, if you haven’t, there are five essential things you need to know...
What Does the Four Wheel Drive Warning Light Mean?
The four wheel drive light means your car has activated four wheel drive. If the Service 4WD light is on, there may be an issue with the system.
How to Tell if Your Car is Front or Rear-Wheel Drive
Every car has a drivetrain of some sort. The drivetrain is a system of transferring your car engine’s horsepower to the drive wheels that propels your car. The...
5 Essential Things to Know Before Buying a Truck
Trucks are a popular option thanks to their overall versatility. They can haul people and things with ease, and they handle off-road adventures like champs. However, there are five essential things to know before...

Related questions

Question
4 wheel drive will not engage 2010 Ford F150 4WD
Hello - it sounds like the 4WD-High actuator is not successfully engaging High-range as expected. There are many possible causes, bad servo actuator, transfer gear mis-alignment, transfer shift fork wear. For assistance, I would recommend transfer case inspection by a...
Question
Transfer case is stuck in neutral.
Hi there. With the vehicle engine running but the transmission in park or neutral, put the transfer case in 4H and see if it will engage. Then try to put it into 4L and see if it will engage. If...
Question
Will a 95 RWD transmission be compatible with a 94 4x4, both F-150.
Hi there. The transmission in your truck is called an AODE or 4R70E. This type of transmission did not change year of design until 1998. From the year 1993 to 1997, the transmission was the same. The only difference was...
Question
How hard is it to switch an nv 4500 transmission from 2 wheel drive to 4 wheel drive in a Chevrolet.
Hi there. There are a couple of ways to convert your transmission from 2WD to 4WD. You could install a transfer case and have a short drive shaft go to it from the transmission. Another was is you will need...
Question
My Mitsubishi pajero mini (1999) four wheel drive gear stuck in 4 low position. It is unable to shift back. What could be the problem?
Hi there. The front axle 4WD engagement switch is stuck. With the engine off and the transmission in neutral with the wheels chocked, remove the harness to the front axle engagement switch. Turn on the ignition to ON and start...
Question
Car is lurching at 10 mph after changing the rear differential.
Hi there. The symptoms that you are experiencing is that the gear ratios from the front axle and the rear axle are different and causing the vehicle to lurch at low speeds. Take the vehicle off road on a dirt...
Question
Would cold temperatures make my service all wheel drive system warning come on? 2012 GMC Terrain
Hi there - while a big drop in temperatures shouldn't cause a service light per se, cold temperatures DO have an effect on electrical connections, and a connection problem may be the case here. You need the actual problem code...
Question
4x4 won't engage and push button switch lights up intermittently.
Hi there. Check the electrical wiring to the transfer case shifter motor and see if there is a voltage present when pushing on the 4WD button. If there is a voltage present, then I recommend replacing the servo motor on...
Question
My 4x4 system stopped working.
Hi there. First, put the vehicle on 4 jack stands with all tires off the ground. Then, start the engine and put the transfer case in 4 HI. Then put the transmission in Low. Watch the tires and drive shafts...
Question
Can I take the 4x4 off a regular cab truck same year and model and put on my dual cab truck?
Hi there. If the transmission is the same on the vehicle and the front differential is the same, then all of the parts should be able to transfer over. If the vehicle did not come with any 4WD components, then...
Question
ticking / clicking noise coming from the front end while driving a low speeds.
Hi there. The ticking noise could be the universal joints on the driveshafts or axle shafts on the front axle. The ticking noise could be the universal joints having the bearings burned up causing the caps to move around on...
Question
no breaks
The codes relating to the ABS malfunction should be downloaded and whatever the malfunction is, it should be repaired. ABS systems generate pressure spikes and who knows maybe the system is somehow actuating when it's not supposed to causing the...
Question
Bolt on bottom of transfer case. 2001 Dodge Ram 2500
Hello - I would consult a service manual on your transfer case problem if possible, but basic guidance would be: the "bullet" would go back in first, followed by the spring, followed by the '"bolt". Examine the "bullet" - one...
Question
Four wheel drive light indicator came on, vehicle won't start now.
Hi there. Check the fuse box and see if any fuses blown out when replacing the low beam indicator. If all of the fuses are in good shape and work, then check the wires on the switch and see if...
Question
Grinding noise in the front right of the vehicle.
Hi there: In most cases, when the wheel bearings go bad, they begin to make the grinding noise on turns, and is progressive as speed increases. This might be an issue with an inner axle (if you're Blazer if 4WD)...
Question
4 wheel drive will not engage.
Hello. There appears to be three different locations for the control module depending on the chassis. The 4wd control module will either be found behind a kick panel on the passenger side, inside the dash, accessible by opening the glove...
Question
4wd malfunctions
Hello. There should be fuses and relays for the 4wd system in the vehicle's fuse panel, located in the engine bay. The diagram for their locations should be found on the inside of the fuse panel lid, or in the...
Question
Could I be having transmission trouble and alternator trouble?
Hi there. To start with, the lights could be dimming for the alternator is not producing enough amperage. If the battery is good and holds a strong charge, put a load on the battery while the engine is running at...
Question
I have a 2000 Chevy blazer won't go in 4wD.
There is a device on the transfer case that makes the mechanical engagement that allows power to be transferred to the front wheels. If the power and ground signals are present here and there is no engagement, suspect the actuator....
Question
Won't engage gears 1994 Ford F250 4WD
Hi - for your "no movement problem" I would first check fuses for the transmission and 4WD controller. Then check the electrical wiring connections both to the transmission and to the 4WD controller. Perhaps the vibration of the railroad crossing...

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