Allpar Forums banner
1 - 1 of 1 Posts

Super Moderator
1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
23,913 Posts
I have seen it happen although one would think that radiator cap would be rated to relieve pressure and blow-off at ~15 psi.
I have also seen the ATF cooler fittings blow out of the plastic radiator.
I would borrow a cooling system pressure tester and pump the system up to 15 psi and try to wiggle the upper hose to make sure it is secure.
Plastic radiator nipples seem to be 'slippery' sometimes. Maybe a new upper hose will 'grip' it better. Watch for any further 'hot, pressure build up' signs of a head gasket leak.
1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.