Did I just melt my engine? (Diagnostic Help) - JeepForum.com
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  • 1 Post By K.Greenhorn
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post #1 of 5 Old 09-29-2019, 05:37 PM Thread Starter
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Did I just melt my engine? (Diagnostic Help)

Hey, strangers.
This seems like a pretty solid community, I'm learning from reading but wanted to ask a very pertinent question. My '94 XJ broke down on the freeway a while ago. The radiator blew going up a hill, I threw more coolant in and pushed it till it died two more times and wouldn't start. I got around to replacing the radiator, filled the new system with coolant, charged the battery... but when I go to start it seizes. Could I get some help diagnosing? I might have melted part of the engine. If it's not obvious... I'm a total greenhorn at this.

Thanks in advance!

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post #2 of 5 Old 09-29-2019, 05:49 PM
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Take out the spark plugs and turn the engine over by hand via a socket on the crank pulley. See if you bent or warped something inside causing a bind. Then investigate deeper if need be.

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post #3 of 5 Old 09-29-2019, 05:52 PM
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You overheated the engine to the point of dying multiple times and now it seizes when you try to crank it over. As a result, diagnosis is now going to consist of pulling the engine apart to inspect and measure things to see what is damaged and if it's repairable. Next time call a tow truck or a cab.
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post #4 of 5 Old 10-05-2019, 12:03 PM Thread Starter
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Thank you! Time to pay life some tuition.
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post #5 of 5 Old 10-12-2019, 05:54 PM
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Spun crank bearing(s) would be my remote diagnostic scientific wild azz guess

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