One problem related to crankcase (pcv) has been reported for the 1999 Dodge Durango. The most recently reported issues are listed below.
Purchased used oct 13, 01 41,626 miles oil change Dec 12, 01 46,722 mies. Oil change Feb 23, 02 50,310 miles. May 15, 02- replaced oil send unit, cleaned / adjusted the rear brakes, system check /reprogramed enignine controller. Ext day oil guage light / fluctuating 0-110. 3 days later oil change , pcv valve replaced, 55,669 miles. July 12, 02 engine blew #2 rod busted . Warrenty company denied repairs due to sludge in engine. Proved 3 oil changes in 6 months I owned vehicle engine & battery cables replaced . August 14, 02 after engine repair drove car to gas station ,turned e off, filled with gas, wouldn't turn over. Car engaged, ticking noise, service dept said normal. Purchased battery. Sept 13, 02 check gauge light on, temperature gauge fluctuate 0-260, oil temp gauge to 110. Told no coolant, told looking for leaks. Told coolant topped off sept 16, 02 oil temp light fluctuated toward 110 mark. Checked oil - quart low. Added quart. Sept17 , 02 green fluid leaking, vehicle towed to dealership. Water pump/ by pass hose replaced. Drove off the lot found air cond not working, compressor not connected sept 22, 2002 engine rev / tachometer stick at 4-5 check transmission / oil levels. Oil 2 quarts low. Oct 10,02 tachometer reved car would not engage . Sensor in transmission out. Replaced sensor. Left shop , at 60 mph could feel vibration by gas pedal, engine would rev, tachometer would jump. Unable to dup the prolbem. Vehicle hooked to computer no abnormal readings 10/22/02 replaced upper ball joints, tie rods, and shaft, front end alignment. 12/02 purchased 2 tires. 6/03 replaced alternator purchased 2 tires front end alignment . 11/03 replaced starter /battery cables 12/26 dealer service department , engine reving, tachometer jumping, crunch in the front end, car not going into reverse. Replace lower ball joints /4 tires due to uneven wear.