Question about 1999 Dodge Ram 2500 4WD
Any time your dealing with a 4x4 system the best start is at you front axle. Its primarily a vacuum leak so check to see if the 2 vac lines are hooked up (its good to check the electric connections.). When your 4 wheel drive is engaged and the motors running you should have vacuum at one or both of thee lines depending on if your in 4 hi or low .
If no vacuum at axle check the Vacum switchs(the plug with 4 vac lines) on top of the transfer case it will have 2 feed lines(grey & green) they conect in to the into the vacum harness on back of motor (passanger side). A vacum schematic is normally located on the raditor core support (right under the hood next to hood release)
Hope this helps
Posted on Feb 07, 2010
My 96 dodge ram 1500 5.2 4wd is not working. I did put a new engine in it but I was told it's a vac leak but I don't know what vac line to check. Please help me the snow is coming
Posted on Jan 21, 2012
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Posted on Jan 02, 2017
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