disappearing coolant

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  #1  
Old 06-18-05, 05:27 PM
rtta51
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disappearing coolant

I have a 2001 Dodge ram 1500 thats been loosing coolant from the overflow tank since i bought truck new. Where is it going? The truck runs great, just passed emissions test. has new radiator cap. No leaks, no steam from exhaust. I'm stumped, anyone have any thoughts on this?
 
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Old 06-18-05, 06:24 PM
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Has to be a leak somewhere. Start with a pressure test, then a chemical CO test (checks for exhaust gas), and if nothing is evident from those, add UV dye.
 
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Old 06-18-05, 06:48 PM
rtta51
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thanks for the reply PMG

Can you tell me what the co gas test involves? is it something I could afford?
 
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Old 06-18-05, 06:56 PM
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How much water have you lost so far? Do you fill a quart a day?

Are you over filling the overflow tank? Note that it has a line on the tank to show max fill when cold. If you top off the tank, you will lose the extra water each time you drive.
 
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Old 06-18-05, 06:57 PM
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You can probably get all three done at just about any shop for under $30.
 
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Old 06-18-05, 07:29 PM
rtta51
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coolant loss

The overflow tank goes dry every 30 days approx. its not overfilled. may have to take to shop. truck has served me well.
 
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Old 06-18-05, 08:14 PM
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Once a month. Hmmmm, you may have a small pin hole leak. Tough to spot unless you open the hood often after you park with hot engine and inspect with a flashlight. Easier to spot when spewing because it evaporates minutes later.

A good place to look is the top of the radiator where the heat is the highest. A small crack in the plastic will dry up and leave no sign of a leak within minutes of shutting off the engine.
 

Last edited by Lugnut; 06-18-05 at 08:38 PM.
  #8  
Old 06-19-05, 05:05 AM
rtta51
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coolant loss

thanks lugnut, I just ordered a dye leak detector. should help
 
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