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1987 blazer grinding when shifting into 4wd lo


black9label9
12-03-2008, 04:37 PM
I have a 1987 s10 blazer 2.8L. I have the shift lever for the 4x4 on the floor. (not push button) When i shift into 4wd hi the light comes on but does not engage the 4wd. then i try shifting lower to neutral, then to 4wd lo and hear a grinding noise then it feels/sounds like it shifted into 4wd. but still does not engage the front axle. I was wondering if anyone could help me please.
Thank you
rich

MT-2500
12-03-2008, 05:29 PM
Does front drive shaft engage in 4W?
If so check front actuator for engaging front axel?
Got good vacuum to actuator?

This link may help.
http://www.automotiveforums.com/vbulletin/showthread.php?t=572914

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