One problem related to constant velocity joint has been reported for the 2002 Mercury Mountaineer. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Mercury Mountaineer based on all problems reported for the 2002 Mountaineer.
01/18/07 when truck shifts gears it vibrates. Solution: flush automatic transmission fluid. (also changed oil) helped for a few months but problem is back. ($198. 95) 5/29/07 air bag light stays on. Solution: replaced drivers side pretensioner. (also changed oil). $273. 19 6/26/07 heard very loud clunking noise. Solution: replaced front differential (internal damage to clutches), both rear axle seals (because of leakage) $1580. 23 11/07/07 truck makes loud noise from the rear and seems to jump while turning. Solution: front end alignment and replace seals in rear. $482. 97 still have the loud noise and jumping. 12/13/07 take truck to different place with same problem. Solution: replace left front hub bearing. $401. 73. 02/18/08 still have same problem with loud noise and jumping. Solution: left rear hub bearing, drums in rear, and now mechanic tells me I need clutch packs in rear to solve problem. Tells me I should take it back to the dealer. ??? $380. 00. Now I can add all of this up 198. 95+273. 19+1580. 23+482. 97+401. 73+380. 00=$3017. 07 to finally get my truck fixed---------priceless!!!!!!!!!.