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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
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
I'm looking at a jeep, but the transfer case is making some noise. It only effects driving when in 4WD. Is it worth buying and fix?
Hi there. If the transfer case is making nose when in 4WD, then there is a possibility that the chain is stretched or the synchronizer is stripped. If you do decide to buy the vehicle, I would recommend seeking out...
Question
I have a 2004 Dodge Ram quad cab with a 5.7 liter 8 cylinder engine. When I put truck in 4 wheel drive and move I hear a clucking.
Hi there. The noise that you are hearing could be either the front axle engagement solenoid or the gear lash on the pinion and ring gear on the front axle could be too much. Check to see if the front...
Question
Transfer case will not lock front drive line in for 4 wheel drive.
Hi there. Sounds like the chain in the transfer case has broken. If your transfer case has gears, then the gears may have broke off or ground down the teeth. Also, the syncronizer slider in the transfer case could have...
Question
Hi. i have a 2000 kia sportage 4WD and it looks like the fuel pump needs to be replaced. Is it necessary to drop the fuel tank in order to replace the fuel pump?
Hi there. The fuel pump could be changed by using a special tool behind the seats in your vehicle. You will have to remove the carpet behind the rear seats and you will have access to the fuel pump. I...
Question
Switched to 4WD - did fine for a little then started making grinding noise. Now car won't move and the 4WD light is blinking.
Hi there. If the 4WD light is blinking and you hear a grinding noise when the transmission is in drive or reverse only, then the transfer case has either broken the fork inside the case or the syncronizer jammed up...
Question
Shifter knob locked into neutral
Hi there. Try shutting off the engine and turning on the power but do not start the engine. Leave the transmission in neutral and try to shift the transfer case into neutral. If you can put it into neutral, then...
Question
Transmission shifts extremely hard from first to second gear.
Hi there. The transmission is shifting very hard from 1st gear to 2nd gear for the accumulator spring or piston is broken. The accumulator is designed to cushion the shift and allow the transmission to ease into the next gear....
Question
I replaced my clutch and bleed my hydraulic clutch master cylinder. But when I put the truck in 2H and try to shift, I won't shift.
Hi there. There seems to be an issue with the transfer case on your vehicle. The transfer case may have a bent fork or the shifter synchronizer has broken teeth. I recommend seeking out a professional, such as one from...
Question
4wd not engaging but 4wd illumination is still turning on.
Hi there. The clicking noise that you are hearing from your transfer case area could the double cardan universal joint turning with a bad bearing. Check the front driveshaft for excessive play and see if one of the universal joints...
Question
My truck is stuck in 4L or 4H also the speedometer is saying I'm going 100 mph when I'm only going 20 mph. Is my GEM Module bad?
Hi there. The issue could be with the output shaft speed sensor on the tail shaft of the transfer case. The output shaft speed sensor is a sensor the registers the speed of the output shaft and lets the computer...
Question
Cant I put manual hubs on my trooper?
Hi there. You can change the auto locking hubs to manual locking hubs as long as the parts will fit. Just keep in mind, by replacing the auto hubs with manual hubs, you will have to get out of the...
Question
4x4 not working. Replaced transfer case motor, control module, and tested the 4WD switch. Everything is good.
Hi there. The synchronizer or fork inside the transfer case may be damaged causing the transfer case to not engage the front axle. Try to put the transfer case in 4 HI and see if the vehicle is engaging. If...
Question
I was told some 4x4 jeep models are primarily front wheel drive then the rears kick in when engaged.
Hi there. To determine if your vehicle or another jeep in that manner is rear wheel drive or front wheel drive, simply look at the transmission. If the transmission is mounted horizontal, then the vehicle is front wheel drive. If...
Question
Cost to replace rear differential on a 2014 Tacoma TRD 4x4?
Billing question was sent to CS for the cost to replace the rear differential on a 2014 Toyota Tacoma TRD 4WD.
Question
Questing about shifting from 4wd to 2wd.
Hi there. When shifting out of 4WD, it is best to stop the vehicle and back up about 10 feet. This will fully disengage the transfer case and put the vehicle into 2WD mode. It is normal for the transfer...
Question
Turn selector switch to 2 Wheel Dr. and it stays in four-wheel-drive and then yellow light comes on on the dash and says service
Hello, thank you for writing in. The vehicle is equipped with an electric transfer case, in which something has gone wrong. The fact your are stuck in 4WD, is because the computers programming demands the system shuts down during this...
Question
4wd engages but vehicle bucks like 4wd is slipping.
There is likely an internal issue going on within your transfer case. The most common cause of transfer case slippage is low fluid. I suggest that the transfer case fluid condition and level is checked. If the two wheel drive...

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