[tripletdaddy]

Thanks Rod. I reread the code reader manual with fresh eyes and realized I hadn't done the pedal and steering wheel at the right time, (unfortunately, there is no prompt to do those things, just following the directions correctly as to when to do them) so like you said, that's why those two codes came up. That leaves the other two codes. I'll clear the codes and try again. I'll also test the sensors to see if they are within spec for voltage and resistance.

I looked at that tool you linked to. It's very brief on its use and how it works. It doesn't mention the test fluid you mentioned. How did you know that? You have one of these to know the fluid is needed I guess? Couldn't you just use the fluid without the fancy tool? Right off I didn't see this fluid in that site.

I was hoping to avoid pulling both heads if it came to that if only one is leaking. Or would that be a big mistake? Wouldn't checking plugs and the O2 sensors provide an indication of that? I know a plug will be unusually clean if water is getting to it. I would expect doing a compression test on all of the cylinders would indicate which one or ones are bad.

Any chance Ford will do my heads as part of that head gasket debacle/recall? Unfortunately, I believe that has expired but one can still hope if it means I don't have to do it.

Airjer, any other indications besides the exhaust smell, I can look into to verify that I am getting exhaust into the coolant system? Would there be "smoke" coming out of the system? Is the brown scum in the overflow tank related to this? Would my theory of coolant getting into the cylinder be the cause of the short lived rough idle at start up and then clear soon after?