My Dodge Ram 1500 1995 4x4 wont engage it is a lever on the floor but the front tires dont engage i dont know if there is a way to manually lock the 4 wheel dive in or what i dont know where to look to find the porblem either

If the actuator is not working and you need to engage your 4x4 to get home, you can manually lock in your 4x4 system using the front axle's manual locking hubs (assuming your vehicle has manual locking hubs). Here are the steps to manually lock in your 4x4 system:

1. Locate the manual locking hubs on the front wheels of your vehicle. They are typically located at the center of the wheel hub, and will have a dial or lever that you can turn or pull to engage the hub.
2. Make sure your vehicle is in neutral, with the parking brake engaged.
3. Turn the dial or lever on each manual locking hub to the "lock" position. This will physically engage the front axle, allowing power to be transferred to the front wheels.
4. Engage your 4x4 by shifting the transfer case lever into the appropriate 4x4 mode (4-Hi or 4-Lo).
5. Test your 4x4 by driving slowly in a straight line. If you hear any grinding or feel any vibrations, stop immediately and check your manual locking hubs and 4x4 system.

It's important to note that driving in 4x4 mode on dry pavement can cause damage to your drivetrain, so be sure to disengage your 4x4 system and unlock your manual locking hubs once you're back on solid ground.

Your question says Dec 2018 so I don't know if you've had it repaired yet but I'd like to help. The 4x4 in your truck is not electronic but it has a light to tell you when it is engaged. Assuming the transfer case lever feels like it shifts okay when you go from 2wd-hi to 4wd hi, what you want to do is, 1)put the vehicle in park, leave truck in 2wd, key on engine off and parking brake on if it works. 2) Crawl under the truck from the passenger side and look at the front axle from the middle of the truck. There is a square, aluminum piece mounted to the axle with 2 vacuum lines going to it and an electrical connector hooked to it. 3) Unplug the electrical connector and jumper the 2 wires inside the harness while someone looks at your 4x4 light on the dash. The light should turn on. If it does then either the vacuum lines are rusted, plugged, unhooked, or the vacuum canister on the axle is bad.(Both are common) To test the vacuum canister you must have a vacuum hand pump tester or start the engine and feel the vacuum lines. One of them should have good suction at idle. They are bonded together but you can use the one with good vacuum by pushing it onto each vacuum nipple, one at a time to see if the axle engages. Remember to plug the electrical connector back in so you can see if the light comes on. That vacuum canister engages a slide lock to hook the inner axle to the outer axle. To see if it's working just jack the right front tire a couple inches off the ground and try to spin the tire. When it engages the front driveshaft will start to spin from spinning the tire. The truck being in 2wd and in park will stay put. DON"T LET ANYONE PUT IT IN GEAR WHILE YOU ARE UNDER IT!!! They also sell electronic axle actuator kits to eliminate the vacuum issue
Hope this helps.

Make sure you ate in neutral and that your hubs are not locked depending on the year, you will have do check the front tires for your hub locks.

does it have manual hubs to lock ? if so lock them in 4wd.
if it has electric auto hublockers, check fuses.

if the actuateor is vacumed,you might have have a hose that came off or it has a split in it somewhere,check that.or if you have posilock hubs one or both may be wore out or lacking grease,they are easy to remove,just a hex wrench and snapring pliers is all you need,remove and inspect for obvious sighns of wear.

Any time your dealing with a 4x4 system the best start is at you front axle. Its primarily a vacuum leak so check to see if the 2 vac lines are hooked up (its good to check the electric connections.). When your 4 wheel drive is engaged and the motors running you should have vacuum at one or both of thee lines depending on if your in 4 hi or low .
If no vacuum at axle check the Vacum switchs(the plug with 4 vac lines) on top of the transfer case it will have 2 feed lines(grey & green) they conect in to the into the vacum harness on back of motor (passanger side). A vacum schematic is normally located on the raditor core support (right under the hood next to hood release)
Hope this helps

Do you have automatic locking hubs? Do you need to turn hubs on wheels in order to have 4 wheel drive work? If all you do to get in 4wd is move shifter, then you have automatic locking hubs. The clicking indicates that the hubs are not fully disingaging. To check, block rear wheels, jack front up, and turn tire. the axle should not be turning...if it is, hub is still ingaged....time for new hubs.....if hubs are bad, and you want to save money, you can purchase a set of manual hubs made by (WARN)...its more than half the cost, but you will have to turn hubs to lock and unlock manually. Note...you still need to use the gear selector to put and take out 4wd.

chances are that your one of your auto locks have when out on you you can replace them with the manual locking type if you dont mind getting out and locking the hubs in. and a plus to manual locks is that they are much much stronger

shift into 4wd and move truck a couple of feet.
if light is still off, park truck block the wheels set the park brake jack right front wheel and try to hand spin the wheel if wheel doesn't turn 4x4 is functioning properly but there is a wiring problem use an ohmmeter to check the 4x4 switch wiring fuse and bulb
if wheel turns freely the front axle or transfer case is not engaged
attempt to hand spin the front driveshft if the driveshaft will spin the transfer case is not engaged check the transfer case shift linkage, problem is in linkage or transfer case internals
if the driveshaft will not spin the transfer case is engaged properly
with trnsmission in neutral or park start engine measure vacuum on the two vac lines at front axle shift motor . one line should have approx 20" vacuum. other line should have none
if no vacuum measured look for vac leak or bad vac switch
if both lines have vac look for a bad vac swithc or ruptured cad actuator diaphragm
if one line has 20" +- VAC
move transfer case lever to 2wd measure vac again lines should have swapped vac signals
if no vac switch bad or 4wd shift likage needs adjusting
if yes vac motor bad or stuck or shift fork stuck
remove vac shift motor from the axle attach vac lines to shift motor engage disengage 4wd
does shift motor plunger move at least 1/2 inch
no shift motor bad
yes check axle shift fork and vac motor for binging

1998 dodge ram quad..front end wont lock in or the lights come on to tell you its in 4x4..***** little