what would cause front wheel s to not engage they lock up in rear end in 4 lo but not in the front had it scaned and came back encoder motor and changed that ans still nothing what was cause that for the front not to engage is there a shift motor under the battery cause i check all the fuses and relays and they r all good
what else can be the problem need help bad [:@]

 

depending of what ur pushin(repost with veh. info) there might be an actuator under the battery, but next time give us the info(4.3,2.8?; tbi,cpi?; year)

 

SORRY ITS A 99 ZR2 WITH A 4 BUTTTON ON THE DASH IM NOT SURE WHAT IS GOING ON WITH IT AT ALL


THANKS FOR ALL THE HELP GUYS THIS THING IS A MONEY PIT AND ALL THE FREE ADVICE IS GOOD

 

If your's has 4 buttons (1 says "auto") it has an electrically controlled solenoid mounted on the top center of the firewall above the distributor...that controls the front axle engaugement (routes engine vacuum to the front axle actuator under the battery tray). Does the 4Hi button continuously blink when you press it? If so then your front axle is not engauging....and your t-case is funtioning properly. First check the vacuum hoses to and from the solenoid....if o.k. check the cable from the actuator (again under the battery tray) to the front axle....I have seen MANY cases where the positive battery post leaks battery acid onto the cable and siezes it up....look straight down from the battery positive bolt if you recently changed a leaking battery.