HI. HAVE A 1995 GMC JIMMY SLT 4X4. FOUR WHEEL HI DOSEN'T WORK. REPLACED THE VACUUM BALL SWITCH, ON THE TRANSFER CASE, WHICH WAS STUCK IN, CHECKED THEVACUUM CONTROL UNDER THE BATTERY FOR SERVICABILITY, & FOUND IT OKAY.REPLACED TRANS CONTROL MODULE UNDER DASH AS RECOMENDED BY SHOP.STILL NOT WORKING. AFTER CLEARING FAULT CODE & PUSHING HI 4X4 BUTTON, JUST GET A GRIND UNDER VEH, AND IT SOME TIMES SHIFTS INTO 4X4 LOW. FAULT CODE READS A#2. WHICH IS THE TRANSFER CASE SHIFT MOTOR/SWITCH ASSEMBLY. COULD THIS BE THE PROBLEM AT THIS POINT. THANKS --RAY
Optional Information:
1995 GMC JIMMY S15 4.3
Already Tried:
CHANGED TRANSFER CASE VACUUM SWITCH, 4X4 SHIFT CONTROL MODUAL UNDER DASH,CHECKED VACUUM, CABLE TO FROBT DIFF, WHICH IS LOCATED UNDER DASH, CLEARED CODES BY TAKING OUT COURTESY FUSE AS REQUIED & CYCLING IGN. SWITCH 5 TIMES.
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