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The PTU is an all-wheel drive (AWD) transfer case used in cars and sport utility vehicles. It allows for power to all four wheels either part time or full time, and also varies how much power goes to the front and rear by specific driving conditions.Symptoms of a failing or failed PTU include hearing a grinding, growling, or humming noise that changes with your vehicle’s speed, which can be the result of low fluid from a leak and/or bad bearings, loose chains and damaged gears. If the PTU has gone bad then you will unlikely be able to drive the vehicle.The PTU is a compact transfer case in the AWD system. It’s attached to the transmission and has a few gears inside to angle the rotating torque towards the rear differential.
What happens when PTU fails?
Symptoms of a failing or failed PTU include hearing a grinding, growling, or humming noise that changes with your vehicle’s speed, which can be the result of low fluid from a leak and/or bad bearings, loose chains and damaged gears. If the PTU has gone bad then you will unlikely be able to drive the vehicle.
Is the PTU part of the transmission?
The PTU is a compact transfer case in the AWD system. It’s attached to the transmission and has a few gears inside to angle the rotating torque towards the rear differential.
Ford’s PTU
Images related to the topicFord’s PTU
Where is the PTU located on a vehicle?
The “transfer case” that is used in FWD vehicles is called a power transfer unit (PTU), which is attached to the transaxle and sends power to a rear differential.
What is a PTU leak?
Problem Description. A leaking axle shaft seal and / or PTU cover seal can cause transmission (red) or Power Transfer Unit (PTU) (brown) fluid leaks at the axle area. The axle shaft seal and / or PTU cover seal may be leaking and should be replaced as required.
What is a PTU on a Ford?
Power Transfer Units (PTUs)
The PTU is an all-wheel drive (AWD) transfer case used in cars and sport utility vehicles. It allows for power to all four wheels either part time or full time, and also varies how much power goes to the front and rear by specific driving conditions.
What is the purpose of a power transfer unit?
Power transfer units (PTUs) are used to transfer hydraulic power from one hydraulic system to another without mixing fluid. PTUs are generally used for a contingency purpose or as a ground service source of hydraulic power.
How does an AWD PTU work?
How it works. The ActiveConnect AWD system includes a PTU module, linked to the transmission’s final drive differential. The PTU module contains a fast-disconnect device and brake that can bring the all-wheel drive system to rest upstream of the PTU’s hypoid gears.
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Is there any recalls on a 2013 Ford Edge?
Summary: Ford Motor Company (Ford) is recalling certain model year 2012-2013 Edge vehicles manufactured from September 2, 2010, through April 25, 2013, and equipped with 2.0L engines. The fuel line pulse damper metal housing may crack as a result of an improper manufacturing process.
Ford All Wheel Drive Vehicles: Critical PTU Fluid Exchange Procedure
Images related to the topicFord All Wheel Drive Vehicles: Critical PTU Fluid Exchange Procedure
How often do you change PTU fluid?
Ironically, the PTU fluid in my 2017 Ford Explorer Platinum is considered a lifetime fluid and does not need to be changed for the life of the vehicle. But when researching, owners of the Explorer recommend changing the fluid every 30k miles.
How much is differential fluid change?
Differential Fluid Change Cost
The fluid itself can cost between $30 and $80, and labor will run between $40 and $70. All together, you’re looking at somewhere in the range of $70 to $150 to change your differential fluid depending on your vehicle, where you take it, and how much differential fluid it needs.
What does full time 4WD mean?
Full-time 4WD basically means the vehicle is in charge of making the decisions. Vehicles with a full-time 4WD powertrain are able to shift instantly and accurately to the best drive mode for whatever the current terrain may have in store.
Which best describes the configuration of the PTU?
Which of the following statements best describes the configuration of the PTU? Typically positioned between the transaxle and a front half shaft; used in conjunction with an automatically disconnect rear driveshaft/axle.
How does the Ford Edge AWD system work?
The AWD system continuously monitors vehicle conditions and automatically adjusts the torque distribution between the front and rear wheels. During normal operation, most of the torque is delivered to the front wheels.
Which 4WD system Cannot be driven on dry pavement?
By contrast to full-time 4WD, when a part-time 4WD system is in 4WD mode, the front and rear axles are locked and cannot turn at different speeds. As a result, a part-time 4WD vehicle should not be driven on dry pavement with 4WD engaged, as the vehicle will not corner smoothly.
Which drive component allows opposing wheels to rotate at different speeds?
Differentials A car has two differentials, one located between the two front wheels and one between the two rear wheels. They send the torque from the driveshaft or transmission to the drive wheels. They also allow the left and right wheels to spin at different speeds when you go around a turn.
Ford PTU failure autopsy
Images related to the topicFord PTU failure autopsy
What is the difference between 4WD and AWD?
AWD powers all the wheels, all of the time, much like 4WD. The difference is that both front wheels and both rear wheels are connected through a transaxle. Essentially, the engine is powering two pairs of wheels rather than four separately. AWD provides more power and acceleration than a 4WD system.
Is full time or on demand 4WD better for off-road?
Due to the lack of “low range”, AWD vehicles are much less capable in off-road settings than full-time 4WD vehicles, but work perfectly well on-road. Part-Time 4WD operates by default as a two-wheel drive vehicle.
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