4r70w shift solenoid testing. Sonnax AODE, 4R70W/75W Valve Body Identification 2019-04-06

4r70w shift solenoid testing

4R70W Dual Shift Solenoid (1998

4r70w shift solenoid testing

I also broke the connector clip that makes sure it stays attached. This kit does not include an electronic pressure control solenoid. I have a Haynes but that is not very good in drive train areas. Step 14: Install Number-3 Thrust Needle Bearing The number-3 thrust needle bearing installs inside the forward clutch hub. Once free movement is established, install the valve using the TransGo orange spring.

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Step by Step Ford AODE/4R70W Shift Kit Guide

4r70w shift solenoid testing

Rear Planetary Gearset Bushing, 9. There is also a 1-2 accumulator retainer that is held in by a snap ring that should definitely be reinstalled. Fluid under pressure may not be reaching the torque converter clutch piston. Step 3: Install Intermediate Clutch Piston Seals As you install the new intermediate clutch piston seals, keep in mind the seal lips must point toward the pressure source or inside the pump housing bore. You could even transfer the files to your phone and conserve on data use! Just need to figure what type of valve body and where to get the solenoids. The intermediate one-way clutch keeps the reverse clutch drum, shell, and reverse sun gear from rotating counterclockwise when power is being applied acceleration. Torque the bolts in a strict pattern to prevent warping.

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Step by Step Ford AODE/4R70W Shift Kit Guide

4r70w shift solenoid testing

Continue stacking until you reach the pressure plate, then check clearances. Common mistakes when diagnosing the P0782 code A common misdiagnosis is for a mechanic to attribute the problem to a faulty shift solenoid circuit. I thought maybe it would be shorted. Observe the downshift-points and the harshness. The valve should move back and forth with air pressure application. Step 3: Lubricate Seals Important! Attachment bolts receive 80 to 100 in-lbs not ft-lbs. Pay close attention to the seal status.

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2000 4R70W intermittent no 3rd gear on upshift. Downshifts to 3rd fine.

4r70w shift solenoid testing

Examine the check ball valves for freedom of movement. Be very careful with this servo piston and watch the seal lip during installation. Take pictures as you go regard-less of what you have for detailed instructions. First Gear in Drive In first gear, the forward clutch is applied, which ties the primary input shaft to the forward sun gear. Apply uniform pressure to the piston while feeling for a smooth transition. Seals and thrusts should be installed wet with transmission assembly lube, though not all shops do it this way. Ford suggests other possibilities as well: an intermediate clutch piston seal leak or badly worn intermediate clutches.

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P0782 OBD

4r70w shift solenoid testing

One, the most common, is caused by some sort of electrical failure and which causes the vehicle's computer to command the automatic transmission to stay in 2nd gear no matter what the vehicle's speed. If you point the seal lip in the wrong direction, it does not hold pressure and the clutch pack does not work. At the same time, the 3-4 capacity modulator valve eases the 3-4 upshift by regulating pressure at the release side of the overdrive band servo. The only inter-changeable components are geartrain related. If the converter clutch is causing the shudder, then the shudder will disappear once the converter clutch turns off.

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Ford AODE/4R70W Guide: Calibration, Building, Troubleshooting

4r70w shift solenoid testing

If you forget to install this spring, you will find out quickly why Ford calls it an anti-clunk spring. The planetary one-way clutch overruns. What is the engine idle speed? The TransGo kit offers options, depending on anticipated driving conditions. There should be nine springs in serviceable condition free of distortion. Slowly walk the tool around, protecting the seal lip. Step 7: Install Forward Sun Gear This is the forward sun gear stub shaft, which fits into the heart of the planet carrier.

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Step by Step Ford AODE/4R70W Shift Kit Guide

4r70w shift solenoid testing

Transmission problems are often perceived as mechanical or hydraulic when they are actually electrical issues that adversely affect the hydromechanical parts. Check the valve and sleeve for smooth operation with compressed air. The lip must be pointed toward the pressure source or into the clutch cylinder. Step 4: Inspect Solenoids The standalone solenoid is for torque converter lockup via solid input or pulsing duty cycle. Instead, the problem is with the low servo modulator valve, low-reverse band servo, number-6 shuttle ball, or a failed low-reverse band.

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Sonnax Ford 4R70E, 4R70W, 4R75E, 4R75W, AODE Vacuum Test Guide

4r70w shift solenoid testing

In final drive, however, power passes through the unit differently. The mechanic also needs to replace the torque converter in this instance. Before mating them, make sure all contact surfaces are clean. There are two bands, two one-way clutches, and four friction clutches used to lock and drive the gearsets. This center support carries the planet carrier. Step 8: Install Reverse Clutches The reverse clutch discs alternate with plates. Step 6: Stack Intermediate Clutch Steels and Frictions The intermediate clutch discs and plates stack up like this.

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