what is causing the overheating in the 2002 rendezvous? on 2002 Buick Rendezvous

new thermostat,water pump,hoses,radiator is fine,flushed every-thing out.still runs hot.don't dare to drive it.read on google about others having the same problems with this model

by in Greenville, MI on August 06, 2014
1 answer
ANSWER by on August 27, 2014
not sure if this helps you or not since your saying you flushed it, was this done by a professional or yourself? I was experiencing overheating. I replaced the thermostat, overheating persisted. I took it to buick and had a diagnostic done for 120. they told me I had air in the system, they bled it, and the overheating subsided. I asked them how air got into the system, since the overheating happened before I opened the cooling system to install new thermostat. That they shrugged shoulders about, but I guess it did not matter since bleeding air out of the cooling system solved the issue
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