Question about 2005 Chevrolet Blazer
I own a 2005 chevrolet blazer 2 door 4.3, front diff not engaging when button pushed, no lights are flashing or indicating a problem? what can it be, is there something i can try ?
Hi: Chances are your vacuum actuator is the problem. It is located just below the battery tray. You probably will find it is not getting vacuum and thus is not engaging the front diff. The vacuum line has a hole in it, it could possibly be off by the actuator or the vacuum canister (located in the RF fender), or the actuator has a hole in the diaphragm. If the battery has ever been over charged or leaked the acid drips straight down causing the problem. Of 5 vehicles I have encountered the problem and solution has been the same, no vacuum. You could have a relay problem, (not likely) relays located by right passenger kick area,
Posted on Jan 08, 2009
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Posted on Jan 02, 2017
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