Bogging out in 4 high - Page 2 -
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post #16 of 17 Old 08-16-2011, 08:17 PM
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1990 CJ7 
Join Date: Nov 2008
Location: Ga
Posts: 5,145
As mentioned earlier, plug the vac line going to the vac switch on the transfer case. You aren't using it (the vac disconnect) anymore, but may be creating a large vac leak when selecting 4 X 4 in the transfer case and the vac switch is still plumbed to the engine..

418 miles on 19 gallons of gas. Can't beat the BBD !
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post #17 of 17 Old 08-17-2011, 02:25 PM
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1990 YJ Wrangler 
Join Date: Jul 2011
Location: Coshocton
Posts: 61
I agree with Old4X.....I pulled the entire vacuum line harness out when I switched to the Posi-Lock and plugged the main vacuum line from the engine to the 4 wheel vac system.
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