Coolant Loss/ Overheat Question
Have a 98 XLT 5.0 with 168K. Last couple months noticed coolant loss with no visible leaks and light smell of burned coolant. Nothing in oil. Nothing from exhaust either. Would top off radiator and vehicle would run great.
Driving home from work temp gauge pegged to hot with check gauge light on.
Pulled over and smelled strong odor of burned coolant. Overflow empty. Let cool, opened radiator and filled with water. Started vehicle, temp gauge was still pegged and moved slightly off when idled for 5 minutes. Drove vehicle for 5 minutes in neighborhood nothing changed. Temp gauge still pegged. Let cool, noticed smell, empty overflow and radiator.
Vehicle never showed signs of complete overheat.
What can be done to troubleshoot where coolant loss is coming from as well as if headgasket needs replacement? thanks for your help. Roger