Question about Plymouth Neon
Verify plug was not loose and try to reinstall when engine cold. Look at plug for electrode damage/melt/discoloration.
Most logical cause is a loose plug
Had car been running funny or hot prior to "blow out"?
The car would blow a head gasket before it blew a plug unless previously the plug was cross threaded and severe damage to threads in aluminum head weakened plug holding.
Typically a good cylinder can compress 130psi
Posted on Aug 06, 2008
At your local parts store ask them to supply you with the proper heli-coil kit so you can put new threads in it. generally cost around 25.00 bucks
Posted on Apr 15, 2009
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