My 2004 Chevy Blazer won’t switch to 4lo or 4hi

Asked by Jessica Feb 18, 2019 at 03:06 PM about the 2004 Chevrolet Blazer LS 4-Door 4WD

Question type: Maintenance & Repair

When I push the button to switch into
4wd, the button will blink for an
extremely long time and then just
switch back to 2. I asked a friend to
check what was under the hood and
he said everything checked out, I’m
thinking it’s an electrical issue. I
would like to just buy a piece and
replace it myself. Any thoughts?

1 Answer
50

shoichiro answered 5 years ago

can reset the ecu, disconnect the battery for ten minutes, then reconnect. must be in neutral to engage 4 low.

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