they used a hot oil actuater that year and it fails badly.
replace it with the upgraded motor driven actuater.
100 +bucks and is a 1/2 hour replacement.
You wrote on Wed, 15 Feb 2006 22:52:26 -0700:
PG> I've got a key that sticks on my keyboard so I apologize for the
PG> misspelling in advance. I've got a 99 Silverado and every so often
PG> that I engage the 4wd it seems to
PG> notworthyofgasburningpigs disengage spontaneously. I've replaced the
PG> actuator but still am having problems. Any suggestions
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