my vehicle is still over heating after we changed the water pump, radiator cap, thermostate and flushed he radiator, also bleed the air but it still gets more air in it and still over heating

Asked by Oct 24, 2013 at 06:17 PM about the 2002 Buick Rendezvous CX

Question type: Maintenance & Repair

i have changed the water pump, thermostate and radiator cap also flushed the radiator and
bleed the air out but the vehicle is still gettting air in it and still over heating, what seems
to be wrong with it?

5 Answers

75

WHAT I FOUND WAS COMMON ON THOS IS THE CYLINDER HEAD GASKET FAILS/LEAKS THAT WILL CAUSE THE VEHICLE TO OVER HEAT

3 of 3 people found this helpful.
10

So I need new heads?

1 of 1 people found this helpful.
75

No the most you will need is gaskets and the heads might need to be machined down a bit because they aaare most likely aluminum heads and they like to warp

4 of 4 people found this helpful.
105

the same thing is happening to us!!!! But you need to take half the engine apart to replace the gasket- is there ANY way around such an expensive repair? Sorry I don't have an answer- but we have the exact same problem- Buick 2002 Century- jerk mechanic sold us this car- put lots of "gunk" to seal the coolant and make the car test drive well, then fall apart afterwards. Is there ANY other explanation for this? What if you keep bleeding it to get the air out? Could that help milk the car along so you don't have to junk it? How do you know for sure a head gasket is gone? I was told coolant would be mixing with the oil- it isn't in our case- is that true?

4 of 4 people found this helpful.
940

Remove at least two spark plugs and observe if there is any coolant on the sparks. If no, then this is not an headgasket issue,

3 of 3 people found this helpful.

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