42rle transmission sensor location
Every vehicle we drive needs to have some sort of way to determine the road speed as the vehicle is in motion. Transmission speed sensors are designed to precisely calculate the road speed through the output shaft of the transmission. The sensor is very accurate to the standard vehicle equipment from the manufacture. If your vehicle has smaller tires than normal, the road speed will be calculated at a higher speed, even though your are going slower.
This is due to the output shaft spinning faster.Overview of the ATS 42RLE Transmission - Jeep JK JKU Wrangler 07-11
If your vehicle has larger tires than normal, then the road speed will be calculated at a lower speed. In this case, even if you are driving at the speed limit you will be passing other vehicles. A failed transmission speed sensor could cause the engine light to come on. Some transmission speed sensors are driven by a gear making them like a governor, however, most speed sensors are magnets that change signal when the output shaft is turning. The output shaft has a key cut design block on the shaft.
The block rotates with the shaft and each key passes over the sensor magnet. As the magnet references a measurable resistance to a metal, it sends some voltage to the computer.
When the magnet get too much metal particles on it or if the magnet loses its magnetism, then the sensor stops working. Sometimes, the sensor will fail if it is submerged in a different type of oil than what is recommended due to viscosity. If you operate a vehicle and the speedometer does not register anything, or if the speedometer begins to move after the vehicle is in motion, then the transmission speed sensor has failed.
If the magnet comes off the speed sensor, it will lodge itself into the transmission making a grinding noise. Depending on how the sensor failed, an engine light will illuminate to inform the driver that there is a problem. Step 1: Turn on the ignition and start the engine. Drive the vehicle around the block to see if the speedometer will operate. Step 2: Check under the vehicle. When returning from the test drive, grab a flashlight and go under the vehicle. Look for the transmission speed sensor and see if the harness is attached and secured.
Step 1: Park your vehicle on a flat, hard surface. Make sure that the transmission is in park mode for automatics or in 1st gear for manuals.
Step 2: Secure the wheels. Place wheel chocks around the tires that will remain on the ground. In this case, place the wheel chocks around the front tires since the rear of the vehicle will be lifted up. Step 3: Install a nine volt battery saver into your cigarette lighter.
This will keep your computer live and keep your setting current in the vehicle. If you do not have a nine volt battery saver, you can skip this step. Step 4: Disconnect the battery. Step 5: Raise the vehicle. Using a floor jack that is recommended for the weight of the vehicle, lift the vehicle at its specified jacking points until the wheels are completely off the ground.
Step 6: Place the jack stands. The jack stands should go under the jacking point locations. Then lower the vehicle onto the jack stands.
Step 1: Take safety precautions. Put on protective clothing, oil resistant gloves, and safety glasses.The Ultradrive is an automatic transmission manufactured by Chrysler beginning in the model year. Initially produced in a single 4-speed variant paired with the Mitsubishi 3.
A 6-speed variant 62TE was introduced in the model year and remains in production for several models as of The Ultradrive and succeeding transmissions are produced at the Kokomo Transmission plant in Kokomo, Indianawhich also manufactures other Chrysler automatic transmissions.
Today, [ when? The Ultradrive was a significant technological advancement in transmission operation, one of the first electronically controlled automatics. It pioneered many now-common features such as adaptive shifting, wherein the Electronic control unit optimizes shifting based on the driving style of the operator.
It earned a reputation for being unreliable. While the Ultradrive transmission had numerous issues, reportedly due to being rushed into production, a common problem was not necessarily caused by a design flaw, but by poor labelling: both owner's manuals and transmission fluid dipsticks advocated the use of Dexron transmission fluid in the event the required fluid was not available.
There may also have been mistaken impressions of failure due to the "limp home" feature. This may have caused perceptions of failure and premature replacement. The torque converter measured 9. There were no bands or mechanical holding devices; ratios were supplied by five different clutch packs. This allowed the transmission to be lightweight and to use fewer moving parts than the three speed it replaced. The 41TE transmission which directly replaced the TorqueFlite had a similar design and could be considered an evolutionary change, but it included different valve bodies, solenoid packs, sensors, and other components to increase reliability.
This line was also given a flash-programmable TCM and, ina variable line pressure hydraulic system was phased in, which boosted performance and longevity. In some applications, the driver could select a certain gear with an extra position on the stick.
The computer could override the gear selector to limit maximum engine RPM or prevent selection of a gear too low for vehicle speed. The option was advantageous in certain driving conditions, e. There are currently 4 different types of units. Chrysler switched to a new coded naming convention in the s.
This new standard starts with two numbers, the number of gears and the torque rating plus two or three letters describing the unit.No items found matching the search criteria.
The torque converter lock-up wear-out usually results in vibrations and wear of the pump bushing which is the same in AA and is included in the kit of bushings. The problem with the pump bushing manifests itself in leakages through the pump seal. If this problem stays neglected, then it may lead to the oil pump replacement.
The block of solenoids in the 42RLE is a common reason for many issues in this family of automatic transmissions. The Clutch Hub Clutch is a typical vulnerability of these transmissions. In terms of design, this automatic gearbox has problems with the hub and a sun gear.
The problem is also provoked by shortages of the oil pressure. Pump bushings, gaskets, pistons, planetary gears get out-of-service because of insufficient oil pressure. This reliable transmission may serve for a long time. Click the icon to leave your comment. To comment on a part of the text, you can select a part of the text with your mouse - and then the comment options will appear allowing you to also share a part of the text on social network pages.
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Symptoms of a Bad or Failing Transmission Position Sensor (Switch)
Upgrades exceed OE requirements and eliminate the possibility of front seal leaks, premature bushing wear, and vibration. Computer Aided Road Simulation. Every transmission is cold and hot tested before shipment. There are many different variations so we have over 60 different part numbers! Each one for a different engine size bellhousing and varying electronic and solenoid systems for different years. Should you have any questions or concerns about your Street Smart transmission, our Product Support Team is only a phone call away.
Must be initially installed at an auto repair shop for labor warranty to be valid. Auto repair shop is defined as repair shop whose primary business is automotive repair and provides auto repair service to the general public, and the initial install is done on a repair order. It is a 42LE transaxle, modified for use in rear-wheel drive vehicles by removing the integral differential and transfer chain.
Power flow exits the rear of the transmission.
The case has also been modified. Remanufactured 42RLE Transmissions. Ship Direct To Repair Shop We provide an out-the-door price, with shipping, for a replacement remanufactured 42RLE transmission direct to the repair shop.
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42RLE Troubleshooting, Diagnostic Help!
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Image Unavailable Image not available for Color:. This fits your. Compare with similar items.The transmission speed sensors are used to calculate the actual gear ratio of the transmission while in use.
The first is known as the input shaft speed ISS sensor. The other sensor is the output shaft speed OSS sensor. If either of these two sensors falls out of alignment or experiences electrical issues, it impacts the operation of the entire transmission.
After registering data, the two transmission speed sensors, also commonly referred to as a vehicle speed sensors VSSsend data to the powertrain control module PCMwhich compares these two inputs and calculates which gear the transmission should engage for efficient driving. The actual gear ratio is then compared to the desired gear ratio. Should either or both of these speed sensors failyou may notice one or more of the following 3 issues:.
Without a valid speed signal from these sensors, the PCM will not be able to correctly control the shifting of gears within the transmission. This may cause the transmission to shift roughly or more quickly than normal. It's also common that a problem with these sensors can impact the shift timing, extending the interval between transmission shifts. An automatic transmission is hydraulically controlled and designed to shift smoothly. When the transmission shifts hard, it can damage internal components including valve bodies, hydraulic lines, and in some cases mechanical gears.
If you notice your transmission is shifting harshly or roughlyyou should contact a local ASE certified mechanic as soon as possible. Since the transmission speed sensors monitor the input and output shaft speed, it also plays a part in monitoring the cruise control. As a safety precaution, the ECU will shut down the cruise control and render it inactive. If you notice that your cruise control does not engage when you press the button, contact a mechanic so they can inspect the vehicle and determine why the cruise control is not working.
It may be due to faulty transmission speed sensors. It also can indicate an increase in tailpipe emissions surpassing acceptable limits for environmental contaminants from motor vehicles. In any case, if you notice that the Check Engine Light comes onyou should contact a local mechanic to scan the error codes and determine why the Check Engine Light is illuminated. Once the problem has been fixed, the mechanic will reset the error codes.
If the problem rests with the speed sensors, depending on your particular transmission, the professional ASE certified mechanics may be able to replace the sensor. Some speed sensors are internal to the transmission and will require the transmission to be removed from the vehicle before the sensors can be replaced. The most popular service booked by readers of this article is Vehicle Drivetrain Inspection.
Our certified mobile mechanics make house calls in over 2, U. Fast, free online quotes for your car repair. Schedule Vehicle Drivetrain Inspection. Service Area. Average rating fromcustomers who received a Vehicle Drivetrain Inspection. Should either or both of these speed sensors failyou may notice one or more of the following 3 issues: 1. Harsh or Improper Shifting Without a valid speed signal from these sensors, the PCM will not be able to correctly control the shifting of gears within the transmission.
Cruise Control Does Not Work Since the transmission speed sensors monitor the input and output shaft speed, it also plays a part in monitoring the cruise control. Home Articles. The statements expressed above are only for informational purposes and should be independently verified.Forum Tech Drivetrain some information about the crappiest transmission ever: 42RE.
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. Thread: some information about the crappiest transmission ever: 42RE. Results 1 to 19 of The "4" stands for 4-speed, "2" is for torque capacity, "R" is for rear-wheel drive, and "E" is for electronically controlled. This transmission is electronically controlled using a governor pressure solenoid to vary the governor pressure.
The shifts are controlled by the valve body by conventional shift valves for and upshifts. The upshift and downshifts are controlled by a solenoid. Although the shifts are controlled by shift valves for the lower gears, the higher gear is electronically controlled because the governor pressure acting against it is controlled by the transmission control module TCM.
The throttle pressure is controlled by a standard cable and throttle valve. The TCM inputs for this system include engine rpm, throttle position sensor, vehicle speed sensor, transmission output speed sensor, governor pressure sensor, transmission fluid temperature sensor and overdrive "off" switch.
The TCM outputs are the shift solenoid, the governor pressure solenoid and the torque converter clutch solenoid. Here's how this system operates: As the output shaft begins to move, a 2-wire AC generator transmission output speed sensor begins to signal the TCM of the rpm. As the shaft speed increases, the TCM controls the governor pressure solenoid accordingly by a pulse-width modulated signal.
Feedback to the TCM is provided by a governor pressure sensor to verify that the pressure actually changes. The pressure sensor is a 5-volt reference sensor.
When the wheels are not rotating, voltage around 0. As the wheels begin to speed up, the voltage should increase proportionately. If the voltage does increase, then the pressure is increasing as it should - this should be verified with a pressure gauge.