How do I tell if my car is EGR or not?

So I've had this crazy noise that sounds like a the acc. belt slipping. I changed the belt and it has not gone away. I also replaced the tensioner pulley and it is still there. My last hope is the idler pulley, and I was wondering if anyone has had any negative experience with pulleys found on ebay ...

Excellent write up! I have this exact same problem. You may have saved me some money since I was looking in to a new head unit.

Thanks for confirming that Lee. I can now place it last on my list of things to do on this car.

The low oil level light has been turning on every so often on my 93 850 GLT for the past month. However, the oil level is always fine when I check it. I am wondering what makes the light turn on? Is it just something in the pan measuring the level or is it reading the actual oil pressure. If its the...

I can't see it but at least I know where to look. Thanks again Lee!

For the past couple of months the ABS will kick in when not needed. This typically happens when the car is still cold or within 5 minutes of driving it. I was told this is probably due to a dirty ABS sensor. I was wondering if there is an easy, inexpensive fixt for this? Thanks!

Thanks!

Thanks vegasjetskier, but I was wondering about the accessory belt tensioner. Sorry! should have been more specific!

I was wondering if anyone has the torque specs for the automatic tensioner. I found the pdf that shows how to take it apart for lubrication, but I am wondering how tight I should put everything back together. Thanks!