2003 Ram 1500

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07-17-2018, 10:42 PM

Jadams505

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2003 Ram 1500

I just changed the t-stat and refilled with coolant. I have bled the line for quite some time and still getting air. No leaks. How long should it take to get all the air out?

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07-17-2018, 10:54 PM

Ramman18

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Put the cap on and drive it. Air should work out. I've never seen a mechanic do anything more than that and neither have I.

BTW, your truck is considered 3rd gen (2002-09) so you may want to post there for more info for your particular year.

What engine do you have?

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07-17-2018, 11:16 PM

Jadams505

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Thanks Ramman18! Its a 4.7L V8. The only reason I ask is because recently towing my trailer the radcap blew off. I don’t know if it was due to a faulty cap or because the t-stat was stuck open.. I haven’t pulled anything since but ran it and no issues. I have read some threads talking about a head leaking into the cooling system causing pressure. Didn’t know if excessive bubbles would be a sign of that or not..

And I have no clue how this ended up in the 2nd gen thread lol

Thanks you again for your thoughts!

Last edited by Jadams505; 07-18-2018 at 12:07 AM. Reason: wrong gen

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07-17-2018, 11:57 PM

MoparFanatic21

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Quote:

Originally Posted by Jadams505

Thanks Ramman18! Its a 4.7L V8. The only reason I ask is because recently towing my trailer the radcap blew off. I don’t know if it was due to a faulty cap or because the t-stat was stuck open.. I haven’t pulled anything since but ran it and no issues. I have read some threads talking about a head leaking into the cooling system causing pressure. Didn’t know if excessive bubbles would be a sign of that or not..

And I have no clue how this ended up in the 3rd gen thread lol

Thanks you again for your thoughts!

You are in the 2nd gen section (94-01) your truck is a 3rd gen (02-08). The bubbles really isn't a way to tell. Any smoke coming from the exhaust? You can have the coolant tested to see if it is a head gasket (really cheap to do). If it's bad enough sometimes you can pull the plugs and see antifreeze on the plug. Or if you have a scope can look into the cylinder

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