Mitsubishi Repair: 4 wheel light indicator blinking, montero sport, wheel speed

Question
the 4x4 indicator light on my 2000 montero sport LS starts blinking since i replaced the sparkplugs. What is the cause of the problem?

Answer
Lowell,
There are a number of things that can cause the light to blink, but I've never experienced this after a spark plug change.  The light usually blinks when the transfer case encounters a problem engaging or disengaging the 4-wheel drive.  Sometimes a bad wheel speed sensor (in the anti-lock braking system) can cause the light to blink.  Again, this has nothing to do with the spark plugs.  If the light continues to blink and you're having a problem getting into or out of 4-wheel drive, take your truck to a transmission shop or the dealership to inspect it further.
Good luck!