Coolant Leak & Engine Overheating on Buick Rendezvous

Problem Description and Possible Solution

A coolant leak may develop from the water pump. The engine may overheat as a result of the coolant loss. A leaking water pump should be replaced.

Problem Data
RepairPal Verified
Average mileage: 132,796 (74,000–203,563)
Engine affected: 3.4L V6
4 model years affected: 2002, 2003, 2004, 2005
29 people reported this problem
Viewing 1 - 13 of 13 comments
My car over heats after about 30 min of driving it. My husband changed the electrical radiator fans, thermostat, and the temperature sensor. The radiator seems good and we had changed the water pump about 3 months. Checked the gaskets and they are not blown, we do not see the milky oil and t does not throw white smoke through muffler. What can the problem be.? I'm close on giving up and just trading it or selling it.
Over heating when in stop and go traffic. Once on freeway, it will go back down to regular temp. Fan not turning on as should. does the fan run by a fuse?
I noticed what looks like water, puddling on the ground beneath the motor.. Also there is no heat inside.. The Buick Rendezvous is not over heating but just dripping water on the ground...
I took my car to a Buick dealer three times for the overheating and they ended up putting in a new thermostat and still had problems now have coolant loss all over the driveway and have to take it back after over $550 for a thermostat I never needed in the first place
I can not find out it still runs hot. I changed the water pump thermostate. And intake hose and head gasket dont know
Ac/h hasn't been working for a while. They blow but no cold or hot air. Driving to Missouri and about halfway there, my husband decided to add more coolant bc it looked low. It leaked everywhere and within an hour the car overheated. It was literally pouring out,but the reservoir remains full. Will update with diagnosis and how it was fixed later.
I Lareece Gantt are having all the exact problems list below! I have been trying to get help and everybody keep giving me the run around in Greenville SC!!!!!
During some recent rain there was some brown stuff all over the car that I thought was just dirt but later my vehicle started running hot. That is when I found a small hose was busted and it was replace. Now there is another leak underneath and it is running very rough. I took it to a mechanic and now I have to replace the water pump. I have had to replace almost everything on this vehicle and something always breaks down.
I have had numerous overheating problems and I have discovered that the water pump is leaking. It is not yet resolved.