I have a 2000 ford ranger xlt 4x4 w/ 4.0 engine.when i try to engage the 4 wheel drive the 4 wheel low and 4 wheel high light blinks back and forth for a couple of seconds.also it sounds like some kind of clicking noise coming from the switch.but it wont go into low or high. thanks for any help you can give. Thus problem started all at once before that 4x4 worked fine. Anything would be helpful Thanks- Kevin-

Ford Ranger Questions - 4 wheel drive relay clicking under ...

www.cargurus.com > Questions > Ford > Ranger
CarGurusJun 5, 2013 - 4 wheel drive relay clicking under dash - i put my truch in 4x4 the other day and ... and watch it move (or not move) while selecting 4x4 high, low and so forth.... MY 1999 Ford Ranger 4x4 will not go in 4 wheel drive 5 answers.

check the rods are not bent at transfer case try putting it into gear with a shifter from underneath ,if no go must be internal also try backing up if possible.

Normally 4 wheel drive HIGH is engaged on the fly or as you are moving more than 10 km per hour or 10 miles per hour but 4 wheel drive LOW is engaged at around 3 to 5 mph. no more or you could ruin the transfer case. Try going from 2 high to 4 high by switching back and forth and then try 2 high to 4 low when idling along. What usually happens is the mechanics under the car freeze up or rust up and you have to switch back and forth to free it up.

Be sure to put the truck in neutral, while engine is running, while you disengage from 4 wheel drive (low) to 4 wheel drive (high) and then finally to 2 wheel drive. It is critical to shift transmission into neutral when switching out of 4WD Low, as indicated in your owner's manual. Hopefully, this will help to FixYa problem!

If your lights are working correctly on the dash and not just blinking,Double check the hubs are locked in if not automatic ones.

Check your rear end to see if you have a sensor like in this video, if so it could solve some issues. The video describes items all going out around the same time. Its based on a 2 wheel drive but who knows you might have the same sensor in the same location. This is a shot in the dark, but who knows it might help or point you in the right direction.

Check your operator's manual. Make sure any and all fuses that have anything to do with the affected items are not blown and are working properly. If you can; check for loose fuse connections or wires. Hope this helps. God bless!

check the hubs for vacuum leaksthe lines should follw the abs sensor wires

the transfer case is sticking from non use, change the lube in the case ( Ford ATF) and drive it for awhile it should be ok then.

The 4x4 system has a controller,or computer,called the Body Control Module and there will be stored trouble codes.To work on a system that's electronically controlled,you have to get the codes from the system.Every trouble code has a diagnostic route to follow to resolve the faulty component.I have read about Explorers having faulty door open/closed sensors.These set a code in the Body Control Module,and in the process,the BCM inhibits 4x4 operation,causing a no 4 wheel drive complaint.There is also an electric motor on the transfer case that can fail electrically or mechanically,along with speed sensors and fork position sensors that can give trouble.