I posted over on SaabCentral and I am not getting the response traffic I was hoping for, so I am here and probably will stay here since I really like how things are done here.
For reference, my car is a 2001 9-5 Aero Auto with 135k miles.
Anyways, I'll start with a quick story about my issues I'm having.
I was parked at DFW and get into my car (after it sat there for 5 days) and attempted to start it. It hesitated and gave up after being started for 2 seconds. I tried again and it did start, but it was very rough and stayed around 2000 rpms. I got out of the car and noticed a little white smoke coming out of the exhaust and could smell the fantastic sweetness of coolant burning. After about 30 seconds, everything died down and all was good. I drove the 110 miles down to Waco without problems, and performance was good, and I parked it at the house. Two days later I started it and it did not start the first time and was kind of a hard slam when attempted. I tried starting again and it repeated what it did in DFW. Quite a bit of white smoke, high rpms and unsteady idle for about 45 seconds and was good again. I stopped it and rolled it into the garage and had a look and saw no coolant in the oil and I have no oil in the coolant.
I began removing things, and last night I pulled the intake tube, throttle body, and cobra pipe off. I had a look at each and noticed a few things. There is 0 movement in the turbo besides for the rotational movement it should have. The turbo is clean on the intake side and the fins look very good. I also noticed there was a little oil residue in the intake pipe going to the throttle body. It is not enough to drip out or anything, but my rag had some black residue when I wiped the inside. I figured this is because I have a lot of black residue buildup on the cobra pipe which I'm assuming comes from the banjo bolt. Am I thinking correctly on this? Also, the throttle body has some buildup and black residue. The good thing is that I removed these items and the O ring on the bottom of the throttle body is completely flat (I have a new one), and the O ring from the intake tube to the throttle body was broken and had over a half inch of no ring for air to leak through.
So now to some questions.
Before I order all of my parts this morning, does this sound like a head gasket issue?
Can the turbo ever be the cause of coolant smoke out of the exhaust?
I removed the chain tensioner and measured it to be half an inch or a little over 12mm, so should I roll in a new chain since I have it apart, or should I wait until the 15mm like the WIS says? (for reference, I drive my car around 3k miles a year, so it might take a while)
Does anyone have a parts list for everything I should replace when replacing the head gasket?
When I replace the head gasket, I plan to send the head to a shop here that will check it and mill it if necessary. Do I need to remove the cam shafts and/or the lifters or anything?
Here are pictures for reference:
Does this like like 12mm?
Sorry for the blurry picture, but the turbo is clean and no movement.
Notice Cylinder 1 and 4 spark plugs are kind of orange, and 2 and 3 are dark and dry looking.