1989 Jaguar XJ6 Charcoal Canister Leak

Suggested Repair

Trace the purge line from the charcoal canister to the intake manifold and look for a collapse or break. Check that the vacuum thermal valves on the thermostat housing open when the engine is warm. If the venting system is not working, tank fuel vapor can condense into liquid in the canister.

Conversation Summary

Owner of a 1989 Jaguar XJ6 reports gasoline leaking from the charcoal canister and suspects fuel is being returned to the wrong tank or a tank selector switch fault. The expert says the canister purge control system is likely not functioning and advises tracing the purge line to the intake manifold for collapse or breaks and checking that vacuum thermal valves on the thermostat housing open when the engine is warm.