What is transfer case in jeep cherokee

What is transfer case in jeep cherokee

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Does the Jeep Cherokee have a transfer case?

Does the Jeep Cherokee have a transfer case?

The Jeep Grand Cherokee/Commander line no longer offers a part-time transfer case option. The reason behind this was its poor sales along with an improved Selec-Trac.

How much is a transfer case on a Jeep?

Jeep Cherokee Transfer Case Shift Motor Replacement Cost Estimate. Labor costs are estimated between $387 and $488 while parts are priced at $520. This range is based on the number and age of Jeep Cherokee’s on the road.

How do I know if my transfer case chain is bad?

Here are some of the most common signs you may encounter when you have a bad transfer case:

1. Gear Shifting Issues.
2. Difficulty Staying in 4WD.
3. 4WD Will Not Engage/Disengage.
4. Puddle Formation Directly Under the Transfer Case’s Location.
5. Weird Grinding, Growling or Humming Noises.
6. 4WD Warning Light Illuminates.
7. 4WD Transfer Case.

What is a transfer case in a Jeep?

The transfer case is the set of gears that changes your vehicle from two-wheel to four-wheel drive. You either transfer the drive manually with a gear shift, or your auto does it when it recognizes a change in driving conditions. The gears adjust to the rotation of the drive shaft and rear axle.

Where is the transfer case on a Jeep?

The transfer case is found on vehicles with AWD or 4WD capability and is integral for allowing drivers to switch to these modes of operation. A typical transfer case is found at the rear of the transmission and powered by the transmission output shaft, operating much like a secondary transmission unit.

How much does a Jeep Grand Cherokee transfer case shift motor replacement cost?

How do you replace a shift motor on a transfer case?

How does a front wheel drive transfer case work?

How do I remove the transmission from the rear axle?

Instructions 1 Remove the front and rear drive shafts. If you need help with this see the rear axle removal video. 2 Remove the bolts holding the transmission to the transmission crossmember. 3 Remove the bolts on each end of the transmission crossmember to drop the transmission.

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What transfer case is in a Jeep Grand Cherokee?

What transfer case is in a Jeep Grand Cherokee?

The ITC (Integrated Transfer Case, MP2010) is a single-speed transfer case and it is used in Grand Cherokee’s new Quadra-Trac I Full-Time 4-Wheel Drive System.

Does the Jeep Grand Cherokee have a transfer case?

The Jeep Grand Cherokee/Commander line no longer offers a part-time transfer case option. The reason behind this was its poor sales along with an improved Selec-Trac.

How do I identify my Jeep transfer case?

The easiest way to identify the transfer case input is by identifying the stock transmission that Jeep used. The 21 and 23 splined output shafts vary on different transmission models. The AX15 transmission is always 23 spline shaft and extends 1/2″ beyond the face of the transmission.

Are jeeps 4 wheel drive all the time?

It is also a system that powers all four wheels of a vehicle at all times. It can be used full-time on all surfaces, including pavement, like full-time 4WD.

What vehicles use a NP231 transfer case?

Usage. Since 1988, the NP231 has been the “Command Trac” transfer case used in the XJ Cherokee, MJ Comanche, and YJ Wrangler. It has been the “Command Trac” transfer case in the ZJ Grand Cherokee since its introduction.

How much does it cost to replace a Jeep transfer case?

On average, a remanufactured transfer case costs depending on the make and model of your vehicle. The cost of labor to install it is in addition to the price of the unit and will typically run between $400 and $800. Transfer cases can be purchased through Autozone and Advance Auto Parts.

Is there a replacement for a Jeep transfer case?

When did Jeep add the NP231 transfer case?

How are transfer cases rebuilt at drivetrain.com?

Is there a warranty on a rebuilt transfer case?

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Jeep WK2 Grand Cherokee Transfer Cases and 4WD Systems

Welcome to the JeepSpecs.com in-depth page on the WK2 Jeep Grand Cherokee transfer cases and 4WD systems. Did we miss anything? get in touch with us and let us know!

4WD systems that go anywhere

The 2011 Jeep Grand Cherokee offers three 4×4 systems – Quadra-Trac I®, Quadra-Trac II® and Quadra-Drive® II with Electronic Limited-Slip Differential (ELSD).

Quadra-Trac I delivers full-time four-wheel drive without any switches or levers to pull. The system provides smooth operation over a variety of road conditions. This light-weight single-speed case is both proven and highly efficient for enhanced fuel economy.

Quadra-Trac II®s two-speed transfer case uses input from a variety of sensors in order to determine tire slip at the earliest possible moment and take corrective action. The system uses Throttle Anticipate to sense quick movement in the throttle from a stop and maximizes traction before slippage occurs. When tire slippage is detected, as much as 100 percent of available torque is instantly routed to the axle with the most traction.

Quadra-Drive II, with a rear Electronic Limited-Slip Differential (ELSD), delivers industry-leading tractive capability. The system instantly detects tire slip and smoothly distributes engine torque to the tire(s) with traction. In some cases, the vehicle will anticipate low traction and adjust in order to proactively limit or eliminate slip.

Quadra-Trac I (MP2010 single-speed case)

(Standard on Laredo 4×4 models)

The ITC (Integrated Transfer Case, MP2010) is a single-speed transfer case and it is used in Grand Cherokee’s new Quadra-Trac I Full-Time 4-Wheel Drive System. It provides convenient full-time 4-wheel drive. The transfer case operates with an open center differential dividing engine torque 50 percent torque to the front axle and 50 of torque to the rear axle. The Brake Traction Control System, which combines standard ABS and Traction Control, provides resistance to any wheel that is slipping to allow additional torque transfer to wheels with traction. The MP2010 single-speed transfer case provides the following benefits:

• No shift lever or driver interaction required.
• Full-time 4-wheel drive provides smooth operation and vehicle stability under all conditions because torque is constantly being transferred.
• Torque distribution provides traction to maintain forward motion under most conditions.
• The Brake Traction Control System (BTCS) works in tandem with full-time 4 wheel drive. BTCS provides resistance to any wheel that is slipping to allow additional torque transfer to wheels with traction.
• Robust design and improved sealing enhance reliability.
• No maintenance required.

Quadra-Trac Active On Demand (MP3010 single-speed transfer case with electronic limited slip rear differential)

The MP3010 is a single speed transfer case which provides convenient full-time all-wheel-drive. No driver interaction is required. The DTCM module governs the torque split between the front and rear axle. Driving down a straight line on a dry surface the transfer case sends 47 percent of the torque to the front axle and 53 percent of torque to the rear axle. This four-wheel drive (4WD) system allows front and rear wheels to rotate at different speeds when required by the road condition or road surface.

Normal All-Wheel Drive allows front and rear wheels to rotate at different speeds on all road surfaces. The “SVC 4WD” warning light monitors the electric shift 4WD system. If this light remains on after engine start up or illuminates during driving, it means that the 4WD system is not functioning properly and that service is required.

Proper operation of all-wheel drive vehicles depends on tires of equal size, type and circumference on each wheel. Any difference in tire size can cause damage to the transfer case.

The DTCM (Drive Train Control Module) is an electronic module that controls the shifting of the 4WD “Active on Demand” MP3010 single speed transfer case.

Quadra-Trac II (MP3023 two-speed active electronic transfer case)

(Standard on Limited and Overland 4×4 models)

The Quadra-Trac® II is the MP3023 two-speed, on-demand, active four-wheel drive transfer case that provides optimum traction for a wide range of conditions, while maximizing driver convenience. When operating in 4WD Auto mode, this sophisticated system anticipates and prevents slip by redirecting torque as necessary.

For added traction capability when traversing steep grades, rough terrain or extremely poor traction surfaces, the transfer case includes a 4WD Low mode. This second speed gear multiplies engine torque 2.72 times and locks the clutch pack for maximum traction.

Electric shifting between 4WD AUTO and 4WD Low is effected with a console-mounted switch. A pushpin button is used to shift to Neutral mode.

The MP3023 transfer case provides the following benefits:

• Active, on-demand four-wheel drive requires no driver input.
• Instantly anticipates slip and preemptively redirects torque as needed.
• Vehicle stability under all conditions because torque is constantly being transferred.
• 4WD Low operation mode provides an advantage over vehicles equipped with a single-speed all-wheel drive transfer case.
• Electric shifting between 4WD Auto and 4WD Low provides smooth operation and improved NVH control compared to systems with mechanical linkage.
• Enhanced traction and stability provided by the Traction Control and Electronic Stability Program (ESP) working in tandem with four-wheel-drive.
• A robust design and sealing for reliability.
• Maintenance-free.
• A neutral mode permits flat towing.

Transfer case operating ranges are:

• Operating positions: 4WD Auto – N – 4WD Low.
• 4WD Auto = Electronically controlled wet clutch for torque biasing.
• N = Transfer case neutral for 4-wheel flat recreational towing.
• 4WD Low = Low range (2.72:1) part time mode.

The 4WD Low range is for off road use only. It is not for use on hard surface roads unless the road surface is wet, slippery, or covered by ice and snow.

The low range reduction gear system is operative in 4WD Low range only. This range is for extra pulling power in off road situations. Low range reduction ratio is 2.72:1.

Controls for the MP3023 transfer case active clutch (torque biasing device) are located in the Drive Train Control Module (DTCM) and communicated on the Controller Area Network (CAN) C bus. The DTCM monitors multiple vehicle sensors to anticipate conditions which may result in wheel slip or reduced performance and preemptively adjusts torque split to front and rear axles as needed. The DTCM also compares wheel speeds at the front and rear axles to detect wheel slippage. A complete vehicle dynamics model, or algorithm, calculates slip at each tire for given vehicle-operating conditions. When wheel slip is detected, pressure applied to the transfer case clutch pack can be increased or decreased to apply increased torque to the axle with higher traction.

The electronically controlled wet clutch pack uses an electric motor to actuate an internal gear train, clutch cam, and low range barrel cam. The clutch cam actuates the clutch levers that apply normal force to the multi-disc wet clutch pack. The clutch discs are alternately splined to the front and rear drive shafts. When normal force is applied to this clutch pack, torque is transferred to equalize speed differences between front and rear axles.

Transfer of torque from one wheel to the other on an axle is accomplished by using Brake Traction Control. Under the right conditions the vehicle can be driven by just one wheel.

Quadra-Drive II (MP3023 two-speed active electronic transfer case with electronic limited slip rear differential)

(Optional on 2011 Overland 4×4; Optional on 2012 Limited and Overland; Standard on 2012 Overland Summit)

• Fully automatic, high range for year round driving in all conditions
• Active electronic transfer case and rear electronic limited slip differential
• When traction is lost torque can be sent to wheel or wheels with the most traction
• System works progressively and on-demand
• Works together with brake traction control
• Torque can be sent front to back or side to side
• 4 Low mode locks front and rear driveshaftsfor low speed power/rock crawling or towing
• Includes Selec-Terrain
• Neutral position for flat towing

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