I am glad that things are getting better for you! I was thinking about your problem the past couple of days and I was wondering about your throttle position sensor. This is another idle thought ( pun intended ( sorry )). If your throttle position sensor is getting dirty it could be giving bad readin...

Just for kicks, before you start in on more part swapping, pull the IACV again and see if it has refrozen. I just remembered that when I cleaned mine, the first time I sprayed it out it seemed to move freely at first, but all I really did was loosen the gunk up and it re-hardened when it dried. To r...

Okay, I tried to clean up the area as best as I could and started it up and ran it for a bit. I saw a very small seep of oil start from what I think is the mating between the oil pump and the motor? oil_leak.jpg I am thinking that the oil leak is originating from behind the oil pump. Perhaps the oil...

MAF cleaner should work fine for cleaning your IACV. As for the Engine Coolant temperature sensor. Those can cause a lot of problems as well. When they start to go you may notice things like the fan going non-stop and hard starts. They are easier to diagnose because they should throw a code on your ...

Thanks to both of you for the advice! I did replace my dipstick and dipstick tube o-rings when I did my PCV system this past summer, so hopefully it is not leaking from there. I will check the other locations mentioned after I give it a good cleaning so that I can look for fresh drips without oil co...

Hey no problem. I was having one second thought, you should probably use throttle body cleaner for it instead of Carb cleaner just to be safe. I don't know if the IACV has a coating like throttle bodies do, but throttle body cleaner will work just as well, and won't remove any protective coatings if...

Perhaps your idle air control valve is gunked up? It controls the air going into your intake when your foot is off of the accelerator and the throttle is closed. It is pretty easy to get to and remove to check . It sits in front of your vacuum tree and it has a hose going into it from the tube that ...

I've been noticing a small oil leak that is originating on the passenger side of my 1993 850. When I drive it and park it overnight there will be a small patch of oil on the ground ranging in size between the size of a quarter to the size of a silver dollar. If I run it for 10 minutes or so and look...

Okay, I'm back to say that my entire attempt to fix this problem has been a HUGE red herring. I can say that I have now fixed the problem and it has been over a month , and the problem appears to be gone for good. Here is what happened: So, as I posted earlier in the thread, I thought that the issue...

Wow!! not an easy problem to find. Awesome troubleshooting. Without the help of this forum, I doubt I can keep my car running this long. Some of these guys, can tell you what's wrong with your car standing 20 feet away from it!! So your problem is solved. When I find my issue, I'll post it also. Go...