Why does my Grand Cherokee continue to overheat?

Asked by GuruM9SGR May 11, 2020 at 01:20 AM about the 1999 Jeep Cherokee

Question type: Maintenance & Repair

Replaced the water pump,  thermostat,  JB weld on a small hole at the bottom
of the radiator.  Still continues to overheat bad. No pressure on the hoses when
idling, but when hot both are very hard. Hoses don not collapse, and the electric
fan works. Please help. All out of ideas.

1 Answer


Sounds like there is air still in the system try bleeding air from system like this. Remove cap from overflow tank add anti freeze to full mark leave cap off and start vehicle and let idle you may notice level in tank start to rise this is normal once thermostat starts to open level in tank will drop add more anti freeze to full mark then put cap back on. All air should be removed and no more over heating.

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