My 2007 Buick Rendevouz is overheating. I changed the temperature sensor, replaced the thermostat and water pump and flushed the coolant and replaced the antifreeze. The temperature gauge is still hot

Asked by Aug 04, 2015 at 05:06 AM about the 2007 Buick Rendezvous CXL FWD

Question type: Maintenance & Repair

What else can be done to correct the overheating of the engine/

6 Answers

21,700

Is the radiator fan coming on ? When you say that you changed the temperature sensor was that the coolent temperature sensor for the radiator fan to come on or the temperature sensor for the temperature gauge ? And also is the vehicle actually over heating or do you think it is because the temperature gauge says it is over heating ?

5 people found this helpful.
30

Do you smell antifreeze inside the cab check out the heater core

10

I have the same problem with my 2007 Rendezvous. Replaced entire cooling system per a mechanic. Including heater core, radiator, water pump, hoses, coolant. Still runs hot. I guess the next step will be the intake gasket. That seems to be the most common repair. If that does not work, then I will move on to the head gaskets. Some mechanics just don't get it.

10

Forgot to add thermostat, and temperature switch.

1 people found this helpful.
10

Changed intake gasket because of coolant channel. No change. Next adventure would have been replace head gaskets and check for cracked head/block. Did NOT go that route. Drove Rendezvous to local Toyota dealer and traded in on 2017 RAV4 SE loaded. Should be good for at least 7-8 years. Thank everyone for their time and help. Hated to lose that car, but once you reach a point of no return, it is hard to invest more money into a money pit.

10

buick rendezvous are poorly designed for hot air flow the engine basically cooks in its own heat but if you cut a 2 foot by 1 inch hole out of the rubber rain gutter near the windshield it will solve your problems for the most part make sure not to cut infront of the air vents I did this and it worked hasn't over heated yet.

1 people found this helpful.

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