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Unread 11-01-2008, 08:39 AM   #1
Mikerp97
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1991 YJ Wrangler 
 
Join Date: May 2008
Location: New Jersey
Posts: 129
97 wrangler blows cool air for heat

I've replaced 192' with 180' thermostat, did not work, heater core supply hose gets hot, return is not so hot so I thought core was clogged but I am able to blow air thru supply line almost as easy as thru a new core, I don't want to replace core only to find out it is something else, could it be water pump not moving water hard enough? how can I test for this?, I do not have an overheating problem

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91 jeep wrangler sport 2.5L 4" rough country lift, 3 inch body lift, 35x14-15 ground hog tires, smittybilt XRC-8 winch, dana 30 front, ford 8.8 rear welded
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