What is going on with the idle??

[explorer blues]

I have a 1993 Ford Explorer. When you go down a hill the RPM's go down like it is idling? Someone told me the transmission is getting ready to go? We just bought this and I am really worried. Also, if you drive on bad lockouts will it hurt anything or will they break? I don't want to get in an accident but they are clicking at least that is what I think is clicking? Im know it needs new u joints and how serious is this?? Thanks for all your help, I have had this for 4 weeks and have not drove it because of the noises it makes!! Any help will be appreciated!!

 

[bchess]

My Explorer had that clicking sound in the Drive trane just before my tranny gave out. usually when coasting down a hill. The last time going down a big hill it just became disengaged I rolled down the hill and up the other side. The engine would rev in drive but not move. I tried to put it in to park, but had a grinding sound. I shut the engine off, put car in to park and restarted the car it work. The problem now is that it won't shift from third to fourth. I dropped the pan and didn't find any metal parts, my next move is to change out the valve body. I've been reading this site and others for 3 weeks now. a lot of good information here but it will take some time to find it all. GOOD LUCK let me know how it comes out>

 

[TPLYNCH]

The idle dropping as you coast, especially down a hill is normal. Clicking from the autohubs is normal when they are overgreased (they shouldn't be greased) or are shot.