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, email@example.com (Kevin) wrote:
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.