Radiator stop leak
I just.had pinhole in radiator. Put stop leak
in made my temp gauge go.crazy. yesterday
it over heated. How do I correct this
Power flush the cooling system, replace the thermostat, replace the leaking radiator, you may have to replace some of the cooling system sensors and senders, but you won't know that until you get all cleaned out and running.
Radiator "stop-leak" is almost never a good idea.
When your radiator leaks, replace it or bring it to a shop to be rebuilt, they are easy enough to pull out and reinstall. Now you will have to flush the entire system several times to get everything out. Also, remove the heater hoses and thoroughly flush clean water through the heater core. I'd flush the engine also for several minutes. As someone suggested, change the thermostat and sensors. And do not use plain water in the new radiator, use a 50/50 mixture - or you will overheat again.
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