It can be a simple fix, or. Make sure the circlips are in place. If it does, the switch and wiring are good to go. This makes rim backspace selection critical, and requires much higher tolerances in the bearings themselves. A fluid change every so often is about all it requires. I definetly think I am going to the manual, cable operated system so I dont have to deal with this problem again! If the vacuum lines are intact, test the vacuum actuator switch. Now move the shift clip on the actuator shaft so that is holds the shift collar in the locked position- I believe it is the end groove for Dodges.
Both front wheels are now engaged and pulling the vehicle. Dave Last Update: November 1, 2000. Notice the actuator shaft has multiple positions and the shift clip the big u or c shaped thing on the shaft will be in one of them. This large section is a reinforcement for the vacuum shift motor. Paid attention as I just bought a 98 2500.
The vacuum switch is a known weak point. If so, stop the vehicle and shift. When you disengage, it all works in reverse. From the 1998 Owners Manual: Transfer Case Shifting Procedure: 2H to 4H or 4H to 2H Shifts between 2H and 4H can be made while the vehicle is moving or stopped. It is a simple vacuum diaphram, rod, three circlips and a shift fork. Do not attempt to shift to or from 4L while transmission is in gear or clutch is engaged.
Just drive back to the off-road, and then hit the pedal back onto the on-road. This will replace all the vacuum hoses from the engine bay hookup, down to the transfer case, and then has 2 lines going out to connect to the steel lines near the transfer case, that run up to the vacuum actuator. Inside the front axle housing, on the passenger side, the front axle is split. The part that sucks is that the passenger side seal is a bugger to replace as the seal must be pressed from inside the disconnect housing. The light should come on. The shift motor is located just behind the axle tube to prevent damage front sticks and stuff.
If you get little to no wheel spin, then you know you're in 4H. After engaging the transfer case, a one inch pull of the 4x4 Posi-Lok cable connects the right front axle to the intermediate shaft using the shift collar and fork, and 4-wheel drive is engaged! The drivers side front wheel is permanently connected to an axle shaft which runs to the differential. No more pushing a button and hoping your 4-wheel drive engages. This article applies to the Dodge Ram 2002-2008. Shift the transfer case lever to the right and pull firmly down into 4L. The bushings tend to wear and crack, which might cause the linkage to go out. The photo at the right shows the two ends which meet at the shift collar.
The side gear on the front diff is turned by the axle on the driver's side. This article applies to the 4th Generation Dodge Ram. Having issues with your 4 wheel drive engaging only when it wants to? This article applies to the 2nd Generation Dodge Ram 1994-2001. These tabs wear down quickly and some times just disappear. Placing the vehicles transfer case in 4-wheel drive and pulling the Posi-Lok cable handle slides the shift fork and collar to connect the freewheeling right axle to the driven left axle. As you may have noticed, there are no hubs manual or automatic on the 4x4 Ram. To check the shift linkage, make your way under the truck and move the transfer case shift lever by hand, making sure it can cycle.
You don't have to stop, back-up, or anything else. One benefit being the improved traction. It shouldn't be to hard to remove. I just had to suffer through the drive up and it finally went in to four wheel drive just before I got there! The vacuum lines then signal the vacuum solenoid on the front axle to slide the splined collar shaft. AutoZone provides helpful and trustworthy advice from our expert staff and offers a Same Day Store Pickup to make repairing your truck faster and more convenient once you shop with us online.
Make sure the vacuum lines have not come unplugged and that the wires aren't damaged. We know you love your Dodge Ram 1500 and want to make sure it's taken care of maybe he or she even has a name? Then, a spring in the switch extends the plunger when the lever is retracted. Diagram of axle shift motor and actuator switch. Engaging the transfer case and pulling the Posi-Lok handle will slide the shift fork and collar to connect the freewheeling right axle to the driven left axle. Ideal for: Offroad vehicles Vehicles that never see the road Part No. This article applies to the 2nd Generation Dodge Ram 1994-2001. Both front wheels are now engaged and pulling the vehicle.
This is my third vehicle with the disconnect system and I've never really had any major problems with it. Put the transfer lever to 4H. How that works is vacuum from engine is routed to the switch on the transfer case. The outer axle splines can have a much tighter tolerance and thus distributes the load better. The central axle shaft is then spun opposite to the wheels by the diff. This means you have to use your key to physically unlock and lock your doors each time you enter or exit the vehicle and a new one is in order. However, the lines are fairly well protected, and failures are rare.
The size of the axle shaft at the disconnect is significantly stronger than a hub end could ever be. Unplug the wires from the front axle disconnect motor. This article applies to the 2nd Generation Dodge Ram 1994-2001. Is your front actuator fine, but you don't have vacuum at the actual actuator? I think you look around the front axel? Unbolt the actuator from the axle housing. This article applies to the 2nd Generation Dodge Ram.