SmokinJoe wrote:
So far the shop says they can't find the leak. I've had to add distilled water several times now recently, but haven't quite used up a gallon yet. I'll talk to them tomorrow about the EGR cooler. They're into the transmission now, however I have not heard what is going on with that yet. Maybe tomorrow.
As far as the timing belt goes, I've got plenty of space (not covered), and alot of tools, but don't have any specialty tools if needed. We could make it a party though. I'm in the Conroe area...not to far from you. I'll probably push it out to 100,000 or so.
I'm hoping for a new TC this time around, as future plans call for a GDE tune.
If they don't find your coolant leak, it may be time for a bit of experimentation on you part. If it's not an actual line or heat exchanger somewhere, it could be as simple as the cap on the coolant resevoir being bad.
You could get one of those antifreeze testers. These work by density. Since water and antifreeze have different densities, "it knows" the composition of you coolant mixture. Take and record measurements over time. If the temperature range the tester reads remains constant, i.e. density is constant, you have a fluid leak...worst case a seeping head gasket. If that reading changes over time, it would suggest you're boiling off the more volatile fraction of your coolant...water boil-off will be proportionally faster than the ethylene glycol.