Question about 1987 Ford Ranger
4 wheel on a ford ranger xlt won't lock in
Ok, you may have provided that information when you wrote in but all I saw was "4wheel on ford ranger xlt won't lock in", so I had to find out what you were talking about because that could mean a number of things.
I can help you to a point but to try and describe the complete diagnostic routine is to complex for this venue.
If the light comes on when you press the 4wd high button you are getting power to the switch.
The next component to check is the Electronic Control Module that is locate to the right of the drivers side speaker. You have to remove the speaker completely to access the connectors.
The good news is that it has a self diagnostic feature built into it and will tell you if it is bad.
The module has 3 connectors, you need to disconnect the 2 flat connectors. 1 is a 5 pin and the other an 8 pin. Do not disconnect the square 8 pin that has 2 rows of 4 pins stacked over top each other.
Locate the indicator light and switch on the module, turn the ignition switch to run and flip the switch on the control module.
If the light flashes about 1 flash a second the control module is good.
If you see a steady or almost steady light the module is bad and needs to be replaced. Good luck.
Posted on Jan 09, 2009
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Posted on Jan 02, 2017
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