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Bleeding coolant system on Dodge?
I recently changed the thermostat on my 04 Durango 4.7L. I have never bled a coolant system before. I know I got to get the air out, I've done brakes before, ect. My question is, do I start to bleed it with the engine off and the bleeder out and then just wait untill coolant comes out? People say to do it while its running but wont the pressure squirt it out? Just wondering on the exact procedure so I do it right and don't get burned lol. Hopefully I didn't sound too stupid, any help appreciated.
3 Answers
- 1 decade agoFavorite Answer
Start with the engine cool, and open the radiator cap. Do it slowly just in case there is still any pressure in there. Take the cap off and start the engine. Slowly fill the radiator and wait until the air bubbles come out the top and the coolant level goes down. Then fill some more. Continue this process until the radiator is full and no more air is coming out. It will take a little bit of time, because as the engine warms and the thermostat opens, more coolant will start to circulate. Just be careful, and wear eye protection in case you get a big bubble and it splashes on you.
- CARL G HLv 71 decade ago
most newer cars dont have a coolant bleeder. if you have a small nut on the top of the thermostat housing this would be the bleeder. you simply loosen it till coolant flows out and tighten it. otherwise you run the motor adding coolant till the system no longer wants any and its purged.
Source(s): 32 year mechanic
