ToySUV: White Smoke / Rear window / Engine noise

[Bob4795@xxxxxxx]

I have a few questions for anyone out there with their ears on and experience 
with 4-runners.  I have a 1987 4-runner with 226,000 miles on it (beautiful), 
and I'm having a few problems.  

When the weather's cold, I get a lot of white smoke out the exhaust for about 
the first 5 minutes of running the car.  I also get some water out of the 
exhaust as well.  Any ideas?  

My rear window will inttermittently roll up and down (mostly won't work).  I 
think the motor is good because when it does work, it is full power.  I have 
checked the controller (side panel of the car behind the driver's seat) and 
it seems good.  Past that, all I can think of is a shortened out wire.  Any 
ideas?

Most of all, my problem is a engine noise problem.  When I get the engine up 
to about 2,300 rpms, the engine gets this almost harmnoic vibration, metal on 
metal noise going on.  you don't hear it when it idles.  I talked with one 
person who thinks it's the valves, and that I need to change the valve stem 
seals, and that will fix it.  Does anyone have any experience with a problem 
like this on their toyota?

Thanks a million,
-Bobby Latham
bob4795@aol.com