2001 Chevy Blazer switching from 2 wd to 4WD

Tiny
JERRY HANDWERKER
  • MEMBER
  • 2001 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 120,000 MILES
I have a problem with the switching from 2w to 4wd it is a puch butten the lights aer flashing and will not stop
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Saturday, July 11th, 2009 AT 1:32 PM

3 Replies

Tiny
M1ABRAMS
  • MEMBER
More than likely you have a bad computer which is at your front transfer case. When it freezes your lights will flash or you may get stuck in 4wd high and not come out.
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Sunday, August 9th, 2009 AT 8:20 AM
Tiny
MOONDOG_67_2000
  • MEMBER
Before thinking your onboard computer for the trasfer is screwed, you may want to check to see if the actuator is just shorting out from a trans leak. If so, if you are a do it yourselfer, fix the leak and clean the actuator with mineral spirits or a parts cleaner. You should be back in 4 wheel drive in no time.
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Sunday, August 16th, 2009 AT 3:59 PM
Tiny
TUNEUP1200
  • MEMBER
You will need: small screwdriver, q-tips, and rubbing alcohol.
Pop out the 4WD button assembly from the dash. Unplug the the two wire connectors. Hold the button assembly in your hand face down. Make sure you are in a place that, if you were to drop something small you can find it easily, but lets just hope you're careful. With a small screwdriver, pry the back of the assembly from the front. Remember to keep the face down in your hands at all times. You see those blue boots with metal contacts on them? These are the things that will fall out easily. Take your time, remember where these boots are located they will pop out easily. In fact, have someone handy with a camera to take a picture of it before going further. Now with a q-tip dipped in alcohol gently clean the metal contacts in the blue boots. Then, with the q-tip and alcohol, clean the whole face of the board that the blue boots come in contact with, paying close attention to the white circle patterns on the board. They may not look dirty but it doesnt take much to make this assembly act nutty. When done cleaning and parts a fully dry, re-assemble and give it a try.
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Saturday, September 12th, 2009 AT 4:45 AM

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