Trendeman
New Member
- Joined
- January 27, 2013
- Messages
- 6
- Reaction score
- 0
- City, State
- Nashville, TN
- Year, Model & Trim Level
- 1999 Explorer Sport
I have a 2007 Explorer 4WD, 4.0 with 260,000 miles on it. When I start it in the morning and put it in reverse, I get a fairly loud whirring sound. I put it back in park (sound stops) and then back in reverse and it goes into reverse as it is supposed to. After backing 20-30 feet, I hear a "thunk" and the vehicle operates normally the rest of the day. I took the vehicle into a transmission shop and had diagnostics run and the transmission fluid changed. All diagnostic tests were clean and there was no metal or other debris in the pan. Although the mechanic heard the whir and thunk, he could offer no explanation of cause. After having the fluid changed, everything went away and operated normally. Until today. I drove to Atlanta on the interstate (about 130 miles each way) and when I would let my foot off of the gas, it would feel like the transmission disengaged, RPMs dropped, and I would get that loud whirring sound. It reengaged and the sound disappeared when I accelerated again. It does this with overdrive engaged and disengaged. Took it to another transmission shop and their solution was to replace the transmission. Hate to do this with it operating smoothly and normally (no slippage, shifts through all gears...) in all other ways. Any ideas out there?