How do you replace the actuator on a Toyota 4Runner?
Replacing the actuator, which houses both control motors and all the switches, is a complicated procedure if you’ve never tackled it before. It requires transfer case removal and partial disassembly. Here’s what it looks like opened up, actuator still installed: The above is the transfer case open with the rear gear cluster installed.
Is the transfer case actuator on a Toyota 4WD?
The 4WD module has no self-diagnostics and the repair manual is little help in the way of diagnosing transfer case actuator/front differential automatic disconnecting systems. The wiring diagrams for the systems also don’t indicate when the monitoring switches (which track the internal location of the actuators) should be open or closed.
How to fix transfer case on Toyota 4Runner?
3)If you are not getting any sound out of the motor and it doesn’t appear to be trying, you can turn the key on and switch it to 4Hi. The bottom connector of the DC motor is the positive and you can use the transfer case as a ground to see if power is going there.
What makes a Toyota 4WD shift actuator fail?
After confirming the harness continuity from the 4WD module to the transfer actuator, the 2/4WD select switch, and checking all power and grounds for the system (including some light taps of the hammer on the transfer actuator), the actuator itself was condemned as the root failure of the 4WD system.
How to repair a Toyota 4Runner transfer case?
1)Remove the steel shield on the bottom of the transfer case actuator. Beware what might come out. 2)Mark the gears. As you can see from the pics I marked the position of every gear I knew was going to fall/ come-out. There are only 2 marks that matter. The large gear at the top w/ the metal tabs and the blue pointer on the position switch.
Is there a problem with my Toyota 4Runner?
CARspec had the opportunity to diagnose and repair a 2007 4Runner recently that wouldn’t engage 4WD high or low – the shift indicator would only blink and the car remained rear-wheel/2WD. Here are our notes on the diagnostics and the repair:
Can you move the shift rods on a Toyota 4Runner?
MOVING THE ACTUATOR SHIFT RODS MANUALLY ANY AMOUNT WILL MISTIME THE NEW ACTUATOR, NECESSITATING A SECOND NEW ACTUATOR. DO NOT MOVE THE ACTUATOR SHIFT RODS. It is OK to move the select forks and gears to get everything to line up, just don’t move the rods less you destroy the actuator and you’ll have to buy another one.