1999 Chevrolet Blazer
Problem for Chevrolet 1999 Blazer

Shifts into 4 lo without warning




By jakubielski on Oct 31, 2009

" "
I start the truck, put it into reverse, and the 4 lo light starts blinking, when I go thru neutral to drive it engages into 4 lo and I cannot get it out of 4 lo.

Solution #1

posted on Oct 31, 2009
Not Rated)

mic0707

Rank: Guru  Chevrolet Cars  Expert
Rating: 87%, 134 votes
Sounds like you have a faulty transfer case control module which is located on the passenger side under the dash area right at the kick panel,there isnt any real test for this TCCM except replace with known good one.
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