Question about 1993 Jeep Grand Cherokee

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Radiator over heated in my 1993 sport jeep

1993 jeep over heated.. after cooled off won't start
jeep was running fine. hose to radiator had a hole in it at connection so cut hose 2 inches from top and re hooked... wouldn't start and had to be towed. now what?

no previous problems.. only indicator light that came on said *add washer fluid...

now when I turn on gen...ind. lite comes on and won't turn over

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Depending upon how severe the overheat was, you have several possible failures: 1. Coolant leaking from hose sprayed on essential wiring components which may have had marginal but not yet critical problems to begin with ie: a battery connection (at either end of the cable) that was corroded or not really tight & clean). Adding wet antifreeze at that point would cause a break in the connection. Coolant spraying on the ignition coil can cause "tracking" from the high tension post to ground, causing no-spark condition (coolant inside distributor cap will essentially do the same thing, same goes for ignition wires) Bottom line: check and clean all electrical connections where antifreeze may have gotten to. 2. Antifreeze can cause alternator problems. Usually causing diodes to fail... generally, this will not cause an immediate problem though.(but, ecm does get info from alternator so those connections should be checked as well. 3. Overheat, if severe, can cause cylinder head gasket to fail, sometimes resulting in coolant filling one or more cylinders. "hydrolock" can prevent the engine from turning., Or, engine may have just plain "seized up" as a result of severe overheat. in which case, it's junk! I'd start by checking electrical stuff: did you have the flashers on while fixing problem? You may have just simply run the battery down!!!

Posted on Dec 29, 2008

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  • Master
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Well when the motor gets too hot it warps the heads and messes up the motor. it could be possible that it vapor locked. if you have a big enough breaker bar put it on one of the nuts to the crank and try to turn the motor. if it doesnt turn then you will need a new motor.

Posted on Dec 29, 2008

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