making a half a$$ed attempt to find the coolant disappearing act. If I drive it for 45 minutes (Anderson to Fishers or Noblesville) I will lose 4 to 5 inches of coolant from the radiator. no noticeable leaks. no puddles on the driveway after driving. so I figure maybe the radiator cap is weak. new radiator cap didn't really change things. Also noticed that the level in the reservoir never changed. so while the radiator might be down a few inches, the reservoir still was at full cold.
decided that the 28 year old rubber line from the radiator cap to the reservoir might be the culprit. unhooked it and snaked it down to the underside so that the reservoir could drain into a cup. got maybe a few teaspoons. yanked the hose off the reservoir itself and it drained just fine all over my driveway. washed the coolant off the driveway and went and got a new hose. so for 15 bucks for a radiator cap and 13 bucks for 3 foot of hose, I hope that is the issue.
it was getting dark, so it is now back together and I will see tomorrow if the problem is gone.
AJ