Question about 2003 GMC Sierra 2500HD
2003 GMC 2500HD. when i switch to 4wd on the fly and speed i get a loud clunk and a grinding noise. not sure if it is the transfer case motor or the front end actuator.
Yeah i get the same thing when im hitting the whoops at 80 miles an hour.What is the deal with this.
Posted on Jan 23, 2009
You are going waaayyy too fast to shift into 4x4 high. I found that going about 3 miles an hour helps it mesh perfectly. That might be too slow for what your doing, but does work without the clunk.
Posted on Jan 30, 2009
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