sassynstl

Hi I posted in powertrain area but think that may be wrong? Any advice is appreciated. Hi. Need Advice. I have a 2004 Explorer with 43K miles. I bought it "used" in 05 with 11K on it from a dealer. It is now out of warranty, and..... I've had the rear end clunk from reverse repaired twice, two transmission rebuilds and the "fluid" changed from the original to the compatible. Three rear end builts total. Something has been repaired a couple of times that the 4WD wants to engage from reverse, forget what that was. Any number of any problems. ALL of these issues are BACK. New added problems.... Engine vibration in Idle (feels like it's going to die, but never has) Transmission is slipping from 1st to 2nd. Front wheels are spinning from stop (never heard of this one before) Finally to my question... Is it worth repairing this thing again, or should I just trade it in and be done with it?