Have automatic hubs on 4 wd 1999 Ford Ranger. Problem started by not engaging into 4 wd when selected. Now, selecting 4 wd does not even get the light indicating 4 wd. Then, after selector is turned back to 2 wd, the 4 wd high and 4 wd low lights will flash a few times and then go off. Tried replacing the motor for locking hubs, but did not solve problem.

SOURCE: I have a 1999 Ford

its most likely one hub isnt locking . you need to take the hub apart and clean and inspect for broken parts(some time the hub will get 1/2 engaged and you would put power to it and will break the hub ) make sure your hub isnt broken then reassemble with light grease and try the hub. if broken new are very expensive. there are alot of used one in the salvage yards just give them a call they would love to help you at a fraction of the cost. tech rating 4

SOURCE: 4 wheel drive

there is a way to do that.....all you have to do is go get the manual locking hubs and switch it over...not that hard....did it to a early 90s f150....pretty easy.

SOURCE: 4W will not turn on ford ranger 1999 4x4

that clicking sound you no longer hear is a relay switch behind dashboard ....aftermarket one's sold at all chain auto parts stores

SOURCE: not sure if the hubs are engaging?

Well, the best way is to place the vehicle on a hoist and raise all 4 wheels off the ground and put it in 4WD and see if all the wheels start turning.

Another way is to make a really sharp (slow) turn while the unit is in 4 wheel high or 4 wheel low on dry pavement. You should be able to feel the driveline wrap-up caused by the front wheels trying to grab during the hard turn.

4 Low should be easily distinguishable from 4 High as well as 2 Whl when you accelerate and it feels like the transmision is stuck in low gear and the engine starts screaming for mercy at high RPM and you are only doing 30 MPH.

Testimonial: "thanx i was able to get in in 4low,it just takes a few seconds as it goes from 4h then to 4l. I f I had the manual it probably would have told me that"

SOURCE: 1995 ford F-250 diesel 4x4 automatic hubs won't engage.

you need new hubs in the front