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Q:

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

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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
(2) Answers
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