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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
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...
Question
Clunking noise when coming to a stop
If you have the 4WD version of the truck with CV axles in the front, a possibility is a faulty outer CV joint. Such can often be detected on visual exam and with simple tests. Failure of the outer CV...
Question
Only seem to have 4 Low forward and reverse and reverse 4 HI only.
The transfer case may have damaged the shifter rail or the synchronizer on the shifter rail. I recommend seeking out a professional, such as one from Your Mechanic, to help you diagnose your transfer case.
Question
Driving from Washington to Oregon when I got home battery boiled over. The 4 wheel drive dash lights and overdrive are on.
Hello. With so many lights indicating on the dashboard such as the check engine light and the overdrive light they will certainly be codes present inside of the transmission control module and engine control module. I suggest that a technician...
Question
I have a 1990 Chevy 4x4 short wheel base step side with an automatic transmission.
If the front drive shaft is spinning and not able to be engaged, then the chain in the transfer case could be broken. For the transmission to be in neutral in all the gears, but lock up in the park...
Question
Noise coming from transfer case. Not coming out of 4 wheel drive quadra drive II.
Hello. We will be happy to assist you. The issue your vehicle is having will be best pinpointed by technician. I suggest that you have a technician perform an inspection of your four wheel drive system to help find the...
Question
Grinding in front right wheel
Hello, and thank you for writing in. When dealing with these issues there needs to be a general inspection done of the drive shaft, transfer case, differentials, and axles. Look for any obvious signs of damage, fluid leaking, or parts...
Question
I HAVE A 2009 SRX V6
Between the drive shaft and the yoke into the differential is a u-joint. Based on your description that joint may be faulty and in need of replacement. To have that component inspected, and replaced if necessary, please request universal joint...
Question
What to buy, high mileage with repair budget or low mileage with no repair budget?
Hi there -by definition, a 4WD vehicle is going to have higher maintenance costs than 2WD; there are more moving parts. However, one that has not been used off-road, not pushed a snow plow, and only occasionally pulled a boat,...
Question
Will a bad front ring gear stop 4x4 from working?
Your 4WD will work until the pinion gear cracks or breaks due to the odd wear of the ring gear that has 4 broken teeth. First, recommend that you drain the fluid and fish out any broken metal and debris...
Question
2002 Toyota 4runner noise in 4x4
It could be an internal tranfercase noise, but I wouldn't jump to that conclusion yet. The noise could be coming from the front driveshaft, CV axles, ect. Anything that's turning when the four-wheel drive is engaged could be the culprit....
Question
My front wheels are locked when I switched to four wheel drive.
If your transfer case can switch from 2 HI, 4 Hi, and 4 LOW, then there is nothing wrong with the transfer case. There seems to be an issue with the front locking solenoid and it may be stuck in...
Question
Can I take my front driveshift out and not use 4wd until I get the parts? There in only driving 2wd.
Hi there. If the front axle has a full time 4WD system, then you cannot just remove the front driveshaft and drive the vehicle in 2 HI as the front wheels will turn all of the parts in the axle....
Question
Transfer box gone on Audi A4 DTM - how much to repair? 2006 Audi A4 Quattro
Hello - if you are able to release the clutch in any gear, and get no motion, a shaft or final drive gearset in the transmission has failed. The only real hope here is that a shifter cable has failed...
Question
I need to now if my 2001 GMC Sierra 1550 4WD had a 3 or 4 spline pitman arm.
Hi there. To see if the pitman arm has 3 or 4 splines, check the splines on it with the nut off. Use a flashlight and look at the splines to see if there are 3 large flat areas or...

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