1998 GMC Jimmy "axle actuator" Questions

...to the front axle actator. You can put the truck on jackstands (all 4 wheels) and check to see if the front drive shaft engages. If so, then it's probably the vacuum actuator or the axle

...at this point, vacuum is sent to the front axle actuator, shifting the front axle into drive mode. The actuator is mounted under the battery tray, and a cable goes to the front axle. ...

axle. When to actuator gets a vacuum draw on it this pulls the cable and engages the four wheel drive. A problem sometimes is the cable it held on by clips and they pop off there is one at each end of

...axle wont lock in when in 4 wheel drive there is a actuator under the battery that pulls a cable to the front axle when in 4 wheel drive see if you have vacuum to the actuator if not look on the ...

...axle actuator. On my Blazer which I'd bet is very similar.. There was a vacuum diaphragm under the battery which operated a cable to "lock in" front axle. make sure you have vacuum supply when asking ...

...Actuator - Located under the battery tray - This is what engages or disengages the front driveshaft. Front Axle Switch - Located on the front axle - This is what tells the TCCM when the front axle is ...

...engage at the front axle my 4wd doesn't engage at the front axle on my 2001 jimmy i had the same problem i fixed by changing the actuator on the front diff  very simple and ...

...and hear it shift but back wheels spin sounds like the front axle actuator might be bad. you can remove it and then switch into 4x4 and see if it moves the actuator. if it doesnt move then it is

...actuator pump and its moving but now i have a rattling noise in my front drivers side wheel and its my 4wd axle jumping around where it meets the wheel do i have a blown bearing or something up at my ...

...axle. Its sounds **** you are haveing a problem with the vacuum actuator that moves the gear in and out of 4 wheel drive mode. Its located under the battery tray. You need to remove the battery and ...