1992 Toyota Corolla overheathing/cylinder head blown

1992 TOYOTA COROLLA
1.6L • 4 CYL • FWD • AUTOMATIC
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ORLY_REVADAVIA
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Running conditionis good but when i turn on the ac it will run for about 1hour then suddenlythe engine will shut off.and i observe that sparkplug turns rusties i clean it up weekly.do you think cylindet head is blown..plshelp...thanks a lot...
Jun 8, 2015 at 2:24 PM
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KHLOW2008
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When engine stalled, are you able to restart? What is the idling speed? Does it fluctuate when A/C is turned on or off?
Which part of the spark plug becomes rusty?
Jun 11, 2015 at 8:37 AM