SO I have been driving my sisters pontiac (purge) and well I am a car murderer. I tried starting it, finally getting it not to die, and the lifters are knocking hardcore... well there IS oil in the engine.. It's a matter of the oil pump working, or a head gasket. changed the oil, no antifreeze in it though... BUT I was forced to drive the TDI and the gauge worked twice during deliveries... But if you pop the hood you can smell the sweet coolant smell... I looked over the wires, I can't see any evidence of the coolant traveling on the wires... ( the coolant runs (if it leaks) along the wires, not inside the casing right?) It had leaked ONCE before. I think I may have a hose leak that messed my sensor up. Either way, I am fixing the sensors soon. (days off!!) But to be safe I think I may drop into a radiator shop. Plus my coolant reservoir is at the min level now. So its disappearing. (not on the ground) don't know if I can say it's cause its migrating 8(