I need some help troubleshooting my 94 blazer's 4wd. I have tested
everything all the way to the differential. I have the push button and
when I push 4 hi the transfer case shifts and the front drive shaft is
engaged. I get vacuum through the switch on the transfer case to the
actuator under the battery and the cable appears to move. I get some
noise from the differential when all 4 tires are off the ground but
they fronts never lock in. What is supposed to happen in that
differential that is not working and what do I do next to get it
working. I have tested the actuator by turning the 4 hi on and it
sucks the bladder in I then pulled the vacuum line off and put my
finger over it this help so the bladder has to be good. I don't know
how to test if the cable is good.
any help is greatly appreciated
According to my Haynes manual (looking at the blow-up diagram of the
front diff), the cable attaches to a shift fork in the front diff,
which slides a gear towards the driver's side of the diff. The gear
slides into a sleeve of sorts, with teeth to mate with the gear. This
engages the front axle. Not sure HOW exactly that happens, just
explaining what the diagram shows. I have a 94 Jimmy, so my book
would cover your truck as well. Beyond that, I can't help ya, mine
has worked VERY well this year, even handling some freezing rain that
brought out the chains for the salt/sand trucks.
On 17 Dec 2003 05:27:20 -0800, firstname.lastname@example.org (Kevin) wrote:
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