5 seconds on 4wd then the problem is Selectable 2wd/4wd actuator. I can physically hear the the actuator motor when I press 4hi. There is a couple options; either adapt a switch to engage/disengage the front actuator or "jump" the signal at one of the connectors to trick the 4WD ECU in Aug 11, 2009 · When the actuator fails, the controller enters failure mode and the indicator light illuminates 2WD,4WD alternately. It would be possible to wire up a switch to operate the front actuator, but I wanted to get rid of the electronics in the 4wd system completely. NOPE. and go to two actuators or relays that should be located behind the battery on pasenger firewall. Oct 28, 2020 · Ok new to the group. Sep 2, 2011 · It’ll make it easier to install. No change. The front one is a little more complicated you will need a 14-16 inch phillips head screwdriver. Drained about a half a quart of gear oil as I unbolted it. Feb 10, 2010 · Consequently, the front diff. Feb 2, 2021 · If you swap the transfer case, you'll need to account for the front diff actuator. within the FRONT actuator is a small electrical motor and a drill that turns some gears. i am convinced there is something going on in the diff,I have just changed the oil and fixed the problem i had with it skipping on the turns,the new oil stopped the clutch plates sticking. Works every time now. to/2yVPMXAAfte Apr 13, 2024 · If you encountered any issues during the front axle actuator testing, proceed to analyze the control module signals using a GM scanner to pinpoint specific codes related to the front axle. Oct 30, 2012 · you can pull on the actuator and manually engage the front differential to check for a seized cable. The problem can’t be repaired; the piece must be replaced to correct the issue. Jun 28, 2017 · I have a rubbing noise that is more pronounced when turning left or right,and the noise is there when the wheels are straight ahead. Aug 9, 2016 · Since I got this thing, I had a leak on the front differential. When the pump fails it cannot build up enough pressure to move the diaphragm and the 4WD drive will not Dec 1, 2008 · Cleaned the front AND rear actuator and it worked perfectly. Like other trucks, the GMC Sierra also has some major issues, including transfer case failure, fuel pump failure, front differential actuator failure, transfer case position sensor selector switch failure, fuel level sensor failure, and air conditioning malfunction. 2. Jan 1, 2017 · In my case, 4transfer case switches, one dash switch, vacuum hoses, one transfer case, one front axle actuator, one actuator cable, and 4 transmissions later, I have only the front axle disconnect to replace and then I would have replaced all the 4wd components in the front end except the TCCM. This leaves the front axle locked for fail-safe operation. Mar 18, 2014 · It's the same part and process on these Tahoes from '95 to '99. Install the lower screw, then tighten it and the front screw. Product links below!OEM GM solenoid: http://amzn. Plug it in and no change. The front differential is a critical component of 4-wheel drive trucks. A four-wheel drive actuator is part of a car’s transfer case, which is responsible for controlling the front or rear axle’s power to each wheel. Aug 2, 2021 · I have a 2018 Wrangler JL with just over 16,000 miles on it. I believe its the front axle actuator from researching some threads. Jul 30, 2020 · If the 4WD drive is not working in Your Kia Sorento it could be caused by several different issues. Need to remove transfer case and split open to remove actuator. Sep 23, 2008 · The actuator is basically a severely geared down permanent magnet motor that drives a probe into the front diff disconnect from the passenger side. Jan 14, 2018 · I decided to put this in the transfer case section instead of the axle section because that's where everybody looks when the 4WD stops working. Re-install actuator bolts, torque to 9 ft-lbs. 9L Manual Transmission. The actuator moves a shift fork that slides a collar that then engages the passenger side drive. " Mar 30, 2021 · It's a sensor on the front axle. i think the splines burned up too. Sep 25, 2009 · When I push the 4x4 button the transfer case engages but the front axle actuator will not engage. Aug 7, 2018 · It's $2200 for a new actuator and the labor to swap it. The shop said that the module under the drivers seat MAY need replacing but They can not give me a straight answer until I pay $500 for the new part and try it. Took off the actuator, took a skrewdriver and used it to push in where the actuator slips into & it locks up. Sep 30, 2015 · same identical problem. Oct 6, 2021 · The last time I had the actuator out (and pretty sure it was in 2wd previous to removing) and was moving the switch it would only move between 2wd and 4wd, however when it's installed it does go into diff lock. Just trying to make sure all the parts work together. Dec 5, 2013 · I have QDII system. I was reading your build post, looks like we have alot of the same parts. The sound was coming from the front axle. This is an explanation for those who have problems with the 4WD actuator in the front differential, and need a quick fix. Oct 11, 2022 · What Causes a Four-Wheel Drive Actuator To Go Out? Ford F150 owners are often faced with actuator problems. I have not disassembled the axle to figure out why as I wanted to ask here first and if possible, have parts on hand to repair when I do. after disconnecting the battery cables and leaving them hooked together overnight, i now have power Aug 25, 2008 · The front drive shaft should NOT turn while in two wheel drive. How to Replace 4WD Axle Actuator A bad axle actuator can put a serious damper on your off-roading fun. 2019 Trail Boss with 44k miles…. I changed the front axle actuator today, and searched the forums, with vague results. Spin the wheels and see if they spin independently or together. Replace bad actuator. Not too bad. May 4, 2024 · Front axle jerking; Grinding noise while driving; Metal scraping noise coming from the front axle; Usually, this issue can occur due to any of the following reasons – Failed 4WD actuator. Turns out the front diff solenoid actuator went bad at 125K miles. The mini harness inside the diff was OK. If it alternates really fast at . Here’s what to look out for. Oct 3, 2023 · 2Hi just going directly through the case to the rear axle (1:1) 4Hi driving both the front axle and rear axle (1:1) 4Lo driving both the front and rear axles (2. Crazy, huh? So, I must have put the right on the left, and the left on the right. Part Number: CWA-68312884AA. Feb 15, 2003 · Front Axle Actuator Problem Jump to Latest 3K views 10 replies 8 participants last post by VaNiLaIc3 Feb 18, 2003 Jun 24, 2022 · The front axle is an open differential, not locker not limited slip. Question: checking the diff actuator switch position service manual states "Verify the actuator switch position by checking for continuity between the actuator side 10P (Gray) connector [1] "O" terminals. I have messed up a few times and tried to switch it into 4x4 after I was stuck (done that a lot to be honest) which I have read is really bad to do. Still no 4 wheel drive. Jan 26, 2021 · Repair and replacement of the Four Wheel drive actuator on the front axle my 2000 Dodge. Here are the reasons-1. If it is turning, check the actuator on the right side of the diff. After checking to make sure everything is working in the transfer case and the front axle, I don’t think I am getting power to the actuator. Did you experience any problems ? Oct 17, 2019 · Buy 4WD Front Differential Axle Disconnect Actuator Assy Compatible with 2002-2009 Chevy Trailblazer and GMC Envoy, 2002-2006 Trailblazer EXT and Envoy XL, 2003-2008 Isuzu Ascender 600-115 12471623: Differential Assembly Kits - Amazon. Sep 14, 2021 · follow me on FB Ef GanadinEf Ganadin YouTube channel Jul 21, 2009 · Front End problem - diff and joints i cried and paid the $2k for replacing the front diff because the job of pulling the engine is over my head and beyond my patience. Can anyone confirm the fuse location for the actuator? Dec 6, 2013 · I hope that fixes my problem, the old actuator was cracked all the way around the base of the nipple that goes into the differential. The front axle is supposed to release if not in four wheel drive. The piece on the front axle is an actuator that engages when you shift to 4wd and that is what actually 'turns on' the front axle. Last year, I replaced the seals in the front diff, so I had both front axles out. Front Differential Noise Definition. Oct 15, 2015 · 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. When shifting to 4-wheel drive, vacuum is released, which locks the hubs. 8617 212270A: . Actuator causes the front wheels to lock together. Jan 29, 2020 · 1. It’s affixed to the long side of the differential Dec 9, 2019 · Diff actuator motor had 4. Install new actuator. In some cases, the reason was a failed actuator for the front axle. I had no idea they are different. So I thought I would start with replacing the actuator and found some info on the net saying that it would be a good idea to upgrade the OEM actuator, and replace it with an Jul 20, 2019 · I recall it being a breather for the diff and actuator. The actuator on your 4WD system to your vehicle is electronic. Mar 22, 2012 · Problem - 4hi light non-stop blinking, does not engage front axle. The dealer is telling me they are backordered! Apr 12, 2020 · I have been trying to get my 4wd working on my 2008 3500 dually. Install the screw on the back of the actuator and tighten it. The actuator on the Ford F150 connects the wheel hub to the axle shaft when the 4WD mode is selected. Not Yet Reviewed. Axle Locker. I might have to remove the front axles from the differential in order to get the differential to move? Apr 30, 2023 · alike to all of these trucks, there is a 4wd actuator on the front differential. Figure 8. You might notice them more when 6 Major GMC Sierra 4 Wheel Drive Problems and Solutions. at first i had 12volt power only in one wire. FOUND TSB 21-2270 RELATED TO CUSTOMER COMPLAINT. Mar 10, 2003 · front diff you should see the accutator on the left of the diff (your left when facing the front of the truck). Re-install is the for the most part the reverse process of the removal. With the front end jacked up with wheels off the ground, turn the truck to the "on" position - not cranked up - and spin one of the front wheels. 5 seconds on 2wd and . 4WD; General Overview; Brakes; Engine and Jul 7, 2004 · Motoforti 4WD Front Four Wheel Drive Actuator, 4x4 Front Differential Axle Actuator, for Chevy Silverado Avalanche K1500 K2500 K3500, ABS, 26060073, Black dummy XtremeAmazing Front Axle Differential Actuator 4WD for Chevy Silverado GMC Sierra Isuzu 600101, 26060073, 8260600730 Aug 24, 2014 · UPDATE: Now having worked on other pumps I found a better way - Simply have your pump rebuilt by Troy at www. 8 ohms and you can hear it run so that was in spec and good. When I shift to 4H the light blinks. REPLACED HALFSHAFT SPEED SENSOR PER TSB INSTRUCTION. The Vacuum lines rotted off which control the actuator. Otherwise, the front actuator won't engage if it can't tell the actuator in the transfer case is engaged. Nov 11, 2014 · Full set of RTR bushings, Mini Circuit-Breakers, Looped Crank Vent, Inline Fuel Filter, 26-10-12&26-12-12 ITP Mud-Lite XTR, Easy Adjust PMS Screw, Front Frame Dog Bone Brace 2516-852, Foot Brake Delete, Clipped And Drilled, Tiny Tach, Mod-Shop Clutchwork, EPI Natural Secondary Spring, Replaced Headlights With 2x Rigid Dually D2 LED Driving Jan 20, 2012 · Same problem here. Troubleshooting the front axle control module involves checking the signals to identify potential problems with sensors, wiring, or the module itself. I jacked the back end in the air put it in four-wheel drive and put it in Drive. Help Aug 11, 2022 · Locate the actuator: The actuator is typically mounted on the front axle or transfer case, depending on your specific model. light keeps on flashing and wont go into 4 low or high. The accutator moves a slip spline that locks the right axle when 4wd is selected (manual or electric transfer). the diff was wasted. Jun 15, 2019 · The unit is designed to disengage the front diff when the brake pedal is pressed. Summit Racing Equipment carries cable-actuated, electrical, and vacuum/electrical kits from 4x4 Posi-Lok, Alloy USA, RT Off-Road, and BD Diesel, plus Perm-Lok central axle disconnect locking systems from 4x4 Posi-Lok. Oct 14, 2023 · I am really leaning twards the Halo 30/ RCV set up. Noises. I would start with the vacuum lines on top of the transfer case. Is that actuator bad for going? May 27, 2017 · Comparing my front actuator with the rear one (which works fine), the front is very loose and wobbles significantly. May 20, 2018 · Front axle will not engage, I can hear the Transfer Case switching when I turn the knob to 4wd but the front axle is not working. There is info on this in section SA of the factory repair manual. 1. 00. Went through the hassle of draining, opening, R&R actuator in the front diff only to have the replacement actuator be Dec 30, 2017 · Check for vacuum at the front axle. The soft lines tend to dryrot. Nov 26, 2019 · Transfer case causes the front driveshaft to turn. 00 online from Rock Auto. I then spin one wheel and the other wheel spins the opposite Mar 29, 2023 · Symptoms your differential needs to be repaired. To ensure that those weren't the problem I uninstalled them and put the stock hubs back on. Cost = $5-6,000. It DOESN'T SUCK no matter what position the floor shifter is in. I replaced the actuator and checked the fuses (well maybe, the fuses were confusing). So I guess I need one of these: ACTUATOR. This article will show you how to replace the axle actuator in your Chevy Silverado and get all four wheels Chevrolet Forum How-Tos. Mar 18, 2013 · 2) if you can spin the other wheel -> bad, something is wrong with the front axle being locked. Took it to local mechanic to diagnose. Also, the "SERV 4WD" light came on but went out after driving in normal 2WD for a few miles. Jan 21, 2010 · 2002 Sequoia 4WD Problems: photos front differential Actuator and Transfer Sensors Still working on this problem. Whining or whirring noises can be a sign of a failing differential. It's the same part and process on these Tahoes from '95 to '99. brought it in initially with around 41k miles. Buy the high dollar dorman. The front drive shaft into the diff is spinning but the front wheels are not. 57:1) 1) Wiring/Electrical Components. Diagnosis: Electrical supply to 4WD actuator good, but actuator not working. Sorry in advance if this is a repeat thread, but we are about to get hammered with snow this weekend. Feb 3, 2015 · I´m having problems engaging the 4x4 front axle and after having scanned the interweb for possible problems, it would appear that the actuator often is to blame. Here's a copy of my repair order. (if you have the E-locker) Feb 6, 2017 · It seems to me the only way to get that off is to remove the front wheels, drain the differential, disconnect the drive shaft and then unbolt the front differential so I can move it forward enough to slide the solenoid up and off the actuator pin. i know its not the front brakes sticking,just overhauled those. You may notice the shift indicator blinking and the truck remaining in 2WD/rear-wheel when the 4WD Hi or Lo can't be engaged. Nov 26, 2016 · Hi there. There should be continuity between "O" terminals. If one turns, but the other doesn't your actuator isn't working. actuatorpumprepair. 8", and you can push in on the internal lever with 2-3 pounds force. 4WD Electrical Problems. You should see a vacuum line connected to it also. If they are free, then the front actuator is not engaging. I took out the front actuator and put a cheap china one off eBay. Jan 20, 2016 · I have a 2007 Colorado 2. Nov 30, 2011 · So I replaced the front actuator and now I have 4wd , but light blinks no 4lo and must shut off truck to disengage the 4wd. Nov 10, 2014 · Basically if you actuator doesn't work and causes your engine light to come on, I may b able to help you fix it. Jun 18, 2015 · The 4WD axle actuator is located underneath the front end of your truck, and is naturally exposed to dirt, debris, salt, or other road threats. One of the significant issues with delays in the starting of Oreion Reeper is an issue with batteries. Jun 19, 2015 · Chevrolet Silverado 1999-2006: How to Replace 4WD Axle Actuator. The solenoid on the left side (pink hose) that is used to disengage the front differential is always OFF. The Issue with Starting the Oreion Reeper:. In this section, we will discuss the definition, causes and signs of front differential noise, and key ways to fix it. I would swap all of the rubber vacuum lines. They took several days to figure out that the front axle actuator was shorted out somehow, and that was causing the “Service Parking Brake” to come on. Can anyone tell me what wire is what on the 4 wire plug, and what I should be seeing when. If it alternates from 2wd/4wd at 1 second intervals, the problem is the Engine Brake Actuator. Jul 10, 2010 · But there was no hole. Total in-out stroke is 0. The front axle actuator consists of a Permanent Magnetic (PM) motor, a worm gear controlled plunger, a front axle switch and an electronic control circuit. Nov 3, 2009 · OK, 4wd doesn't work. Jun 20, 2022 · Bad news from the dealer today. I tried to fill the pitting with solder and sanding it flat, which worked for about a year, then I converted my T-case to manual shift and just locked the front diff actuator then unplugged it. 5L TD :sfa: 145,000 miles, bumper mount PMD, LP relay mod, filter sock delete -SOLD- Feb 17, 2021 · The dreaded blinking 4×4 light on Suzuki Vitara and Chevy Trackers is pretty common. Aug 16, 2022 · Front axle actuator problems: The front axle actuator is responsible for engaging and disengaging the front axle when the 4WD system is activated or deactivated. Not much to it. I put my tv on stands, put it in 4wd, spun one wheel and the other didn't move. Many current 4WD actuators are electrical, using an electronic solenoid to lock the diff drive gears. After that didn’t work (thank goodness for “returns accepted” policies on eBay, although we did pay for shipping here and back), we called Aug 9, 2019 · A basic how-to on how to bypass the shift on the fly system, fix the floppy passenger side axle, and install the ring and pinion on the front differential May 3, 2021 · For this design, the vacuum is placed on the system unlocking the hubs while the truck runs in 2-wheel drive mode. Aug 23, 2013 · The Problem: Front Diff Actuator. I could diagnose and fix it, but I am going to take a different approach on this repair and make it permanent! In this article I will show you how to take the front differential out, disassemble it, and permanently engage the actuator in the front differential. If it is, then something is busted in the front diff (generally the passenger side shaft, or the locking gears). *to help unlock the front diff, disengage the 4WD, and drive in a figure 8 pattern in reverse. Not sure if that comes separate Jan 6, 2015 · To lock the front axle in you remove the four 10mm head size bolts, pull the actuator and slide the sleeve toward the driver side to lock, pass to unlock. g. The most common cause in these vehicles is due to a front differential actuator pump. you can test it by putting a vacume gauge on it an see if it pulls a vacume and start from there. Jul 30, 2017 · Culprit seems to be the "front axle disconnect solenoid". In this video, we're going to show you how to replace the four-wheel-drive front axle shift actuator on this '96 Chevy Tahoe. Jul 21, 2023 · One of the most common problems is front differential noise. The pump forces air into the differential which has a diaphragm inside that engages before will drive. The electric solenoid valves that conntrol the front axle lock were also clicking at the same time. Feb 17, 2023 · Now that you know the basic features of the Oreion Reeper (4 Apex), let’s jump to the problems and solutions. I've been waiting for the dealer to get one in so it can be replaced. 80 CHECKED FDRS FOR CODES, C0633 PRESENT. The left side has additional splines on it for the front diff lock. It should release with no voltage. The replacement part was a cheap part from Amazon although it is working. Just to really confuse the situation, you can also manually lock the rear diff in the same manner. Feb 26, 2004 · About 4 weeks ago my front differential actuator went out on my 04 doublecab. Reinstall transfer case. the electrical motor in mine was jammed up and the screw was rusted. Inspect the actuator: Look for any visible damage, such as cracks or corrosion, which may indicate a faulty actuator. When I did the install I also put in a set of manual locking hubs. In this case, you need to figure out if the actuator in the front diff in moving in/out as you shift between 2wd and 4wd. , faulty transfer case module or actuator: Malfunctions or breakdowns in crucial components like the transfer case module or actuator: Seized differential due to poor lubrication Feb 15, 2013 · Mine was the T-case actuator. Took the old one a part and soldered the motor connections and checked the motor and it works. I'm having a problem with my 2009 tacoma. Just wondering if anyone else has had this problem and why isn't one available from Toyota. If yours is a manual shift, the 4x4 lamp in the console will go out when the actuator releases. New actuator. More precisely, it disconnects the hub and the axle May 24, 2011 · 2 vacume lines run off the diff. What lights are on the dash? Just the flashing green 4wd? Or is 4Lo flashing too? Try to engage it in 4wd, jack the front end up so both tires are off the ground. it had dried out and i wan't proactive enough on refilling. While driving in 2H like any other day, the 4wd actuator engages in the front diff on and off randomly while driving. Symptoms - 4low engages low speed tranfer case as it should, but it light still blinks and does not engage front axle Solution tried - Replaced thermal front axle actuator with new motorized version. As long as the electric motor still works, I am sure I can walk you through repairing the problem. The front differential actuator (technically known as the thermal linear actuator) is a problematic piece. Consult your owner’s manual or repair guide for the exact location. Here's the actuator in place. So I had the dealer do a diagnostic. For your 2011 Dodge Charger R/T Part Number: 68052258AA Includes Axle Disconnect Actuator and Solenoid. ~FH 1994 Chevy K1500 Z71, 6. or have a pin out so I can jump power to the actuator on the axle to see if Jan 28, 2012 · hi all, after having the all too common flashing 4wd light problem, i decided to troubleshoot the front electric 4wd actuator on my 2003 rodeo. May 27, 2010 · If the vehicle will not shift into, or out of four wheel drive, and the "Serv 4WD" warning light is illuminated, the front axle disconnect actuator may need replacement and a power module (TIPM) may need a software update. 00, or $500. com Ask him to raise the out Nov 18, 2017 · Step by step instructions on how to replace the front 4x4 actuator on your '99-'12 GM trucks. i am Aug 29, 2023 · Being the adventurous DIYers we are, we found a Dorman actuator on eBay that would fit and patted ourselves on the back for only having to pay around $100 to fix this potentially pricey problem. The reason the wedging happens, is that the brake is usually applied quickly which doesn't allow time for the 4WD components in the diff to fully disengage. The actuator from Toyota is $1,700. Dec 9, 2009 · The front axle actuator engages and disengages the front axle. Feb 5, 2024 · Problems related to electrical components or controls in the 4WD system: Component failure, e. . I replaced Electricity problems like a corroded cable or a defective 4WD interface, or a failure of components such as a module or actuator of a defective transfer case can cause all kinds of problems. Most of the Silverado 2500 model Chevrolet trucks have issues with the actuator failing in the front axle due to weather and road conditions. Apr 13, 2024 · If you encountered any issues during the front axle actuator testing, proceed to analyze the control module signals using a GM scanner to pinpoint specific codes related to the front axle. It has three slide contacts that corroded. 8HR 212270A 8HR 212270A 0. I've got a lift so I crawled under neath in the snow and watched the front drive axle from t case to diff spin while a buddy drove and the drive axle spins but the cv axles from the diff to tires don't. It measured 0 ohms. I recently had issues getting the 4WD to work in 4 LOW (the shifter works but it seems like its not engaging the front axle). Issues with the actuator can cause the Service 4WD light to come on. The Totally Integrated Power module might need a software update. Slide in half shaft carefully. The problem is a potentiometer inside the actuator that makes the motor move in order to put the machine in 2wd,4wd or diff lock. 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. Nov 5, 2016 · Now on to the front diff. Is the front axle even seeing the proper vacuum? Good chance one or more of your vacuum lines are leaking. com and an adjustable wrench. usually the cluck is the transfer case locking into 4wd not the front diff. Knowing the symptoms and signs of a failing or broken differential will help you address the problem promptly and ensure you’re safe while on the road. i can hear transfer case shifting into low and high, front drive shaft is turning but no action on front axle actuator. Step 7 - Install. The front axle CAD is very simple. I read that the Halo doesn't work with the smart shocks, something about the actuator arm hitting. Install the actuator into the differential and line up the front slot onto the front screw, but don’t tighten it yet. Not sure I need the actuator - just the solenoid. I investigated, and heard an intermittent clicking, very quietly coming from behind the speedometer console. In the past, when I parked the truck it would have to cool down before the front differential would finally disengage. you may have to have someone under the truck turning the front drive shaft to align the gears while you pull the cable. Bought a kit that includes actuator and front (short) and rear (long) harness. Pretty sure it's "in the diff". inside the t Oct 7, 2012 · The pigtailed 2 pin actuator in your comparison photo is a front axle actuator. Every thing seems clean and the 12v motor work fine from both car and seperate power source. Note that if the front axle remains locked, it will not cause driveability or durability issues. is always engaged in 4wd. Whenever a shift to 4HI, or 4LO is requested, the transfer case shift control module engages the front axle by grounding the Improve your 4x4 truck or SUV’s reliability and increase your control with manual front axle engagement systems. 3. I was on a trail, and the wires got ripped out of my actuator. Sep 23, 2019 · This bulletin provides the procedure for replacement of the hydraulic actuator of some All-Wheel Drive (AWD)-equipped 2011-2016 Sportage trucks (produced from May 6, 2010-February 19, 2013) and some AWD-equipped 2011-2015 Sorento models (produced from October 24, 2009-December 11, 2014). Now my truck, when trying to shift into 4 high, makes a clicking and solenoid movement sound. Oct 3, 2014 · Probably the easiest step in the whole process, once the half shaft is out of the knuckle the actuator will simply pull off. The dealer states the new actuator is at a constant 6volts and they think I didn’t time it correctly on install. The only items you'll need for this is a new four wheel drive front axle shift actuator from 1aauto. I recall it running from the actuator to an atmospheric fitting on the upper firewall. There is a shift fork in the front actuator that slides a sleeve over a gear for 4wd or slides the sleeve off of the gear for 2wd. Axle Locker Actuator, Front or Rear Axle Locker Actuator 2007-2018 Jeep JK Wrangler w/ Rubicon Package. If the actuator's housing is cracked or damaged, debris can build up and cause the wheel bearings to wear as well as cause lubricant leaks, which can eventually lead to a damaged 4WD system. This screw seats the actuator in the diff. And no change. Check the harness to the actuator and make sure that it is connected to the actuator. just check the line for holes or anything that might have burnt through it. It begins showing faults when oil leaks into it. Your front axle shift actuator is located right here and the harness for it is right here. com FREE DELIVERY possible on eligible purchases Nov 21, 2023 · Ram 2500 has had difficulty getting their vehicle in and out of 4WD. I did remove my front differential ADD Actuator assembly. If it fell off at the actuator, water spray or deep water could easily enter the diff and the actuator, damaging them, in my opinion. I replaced it with a new one and this still happens. Took multiple trips to shop to figure that out. Nothing. zx rj pg zr rb va xc bf ky fg