Not a new topic but new problem with overheating

[cbravnmls01]

So this is what it all comes down to... I have a 2001 LS V8 which, I love. I have been to h$ll and back again with this car it seems. Here is the problem...

About 5 months ago, my car would overheat for what I felt was no really good reason. OR so I thought. I had what sounded to be bubbling coolant in the degas bottle. So naturally I figured FML I have to do head gaskets.

THIS WAS NOT SO! Thanks to the fine people on this wonderful forum, I learned a great deal about the 1st gen problems with overheating and some other problems I had. To me, this forum is better than any service a dealer could take on. Because this is what forums are about. The passion we all have and share with this beautiful car.

I continue...

So I replaced the degas bottle per everyone on this forum who ever had a overheating issue. I did indeed find several cracks on the factory bottle. SO I replaced the degas bottle, bled, and car ran ok except for the fact I could drive as far and as long as I wanted to with the temp gauge going just a hair past half all the way to 3/4. The temp would fluctuate like clockwork. Til today...

I have bled several times and now I have bubbling and steam coming out of both the bleeding port and degas bottle. Car will be fine temp wise idling, blows no heat, and overheats after going maybe a few blocks. I guess my question is simply this...

DO I NEED TO REPLACE MY DEGAS BOTTLE AGAIN?!

 

[dNyce LS]

Highly doubt that lol. Did u bleed it properly? Its kinda different from other cars bleeding procedure. And did u fill up the 'engine fill' (I think that's what my instructions called it) for the coolant, under the engine cover? I jus did mine and it doesn't overheat (thank heaven). First time I ever bled a coolant system too

 

[joegr]

1st make sure you bleed via the tech article on it on this site.

Check the hydraulic cooling fan to make sure it can switch to high speed. Turn the AC on and the fan should go to high speed and have very good airflow. Also, check for dirt between the condenser and the radiator.

If you all that checks out, then the next step is to do a pressure test on the cooling system. If it doesn't hold pressure, then you need to find the leaks. Start by looking at the plastic parts of the cooling system, including those in the middle of the hoses.

If you pass the pressure test, then the things to look at would be the thermostat and the water pump.

 

[cbravnmls01]

replaced the degas bottle for the second time. And now, my car blows heat for the first time in two years. Thank you to all.