Is the exhaust on a 1991 Jaguar XJ6 liquid cooled as I have coolant in the exhaust system?

The exhaust system on a 1991 Jaguar XJ6 is not liquid-cooled; it operates using exhaust gases. If you found coolant in the exhaust, it likely indicates a head gasket failure, a cracked engine block, or a failing cylinder head. These issues can allow coolant to leak into the combustion chamber, resulting in coolant being expelled through the exhaust. It's essential to address this problem promptly to avoid further engine damage.