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Message: [QUOTE="getstuk, post: 1167858, member: 12375"] When the hubs are in auto, 4x4 does not engage. I thought it would be a vacuum problem after research on this forum but[B] my defroster does NOT kick on when I put it into 4x4 high[/B] (just went out and tested multiple times). I'm thinking about going to Autozone and getting a vacuum pump tool to apply vacuum manually, but I feel like I might be wasting my time if the problem does not appear to be a vacuum leak. Edit: Just read about a $40 kit to redo your hubs, if it's not a vacuum problem... It sounds like it may be the solenoid or the vacuum pump itself...now that I think of it, that tool will help as it will show the pulse on the PSI gauge if it's giving me a pulse or not. Any recommendations? Going to call around to see if I can rent this tool somewhere... [/QUOTE]

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