2nd Gen Durango 2004 - 2009

Overheating bad

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Old 08-18-2011 | 08:59 PM
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Default Overheating bad

I have a 04' Durango that is overheating alot when going uphill, even if the A/C is shut off. I replaced the water Pump about 2 years ago and had the Dealer totally flush the cooling system. I need help badly!!!!!!!!!!!!!!
 
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Old 08-18-2011 | 10:32 PM
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https://dodgeforum.com/forum/dodge-d...s-section.html

ill move it for you, but this section will get you no help because im the only one who checks it. (thats why there is only one other thread here)
 
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Old 08-19-2011 | 02:05 AM
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Have the clutch and electric fans been checked?
 
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Old 08-19-2011 | 07:42 PM
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I had them check back when the water pump was changed.
 
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Old 08-20-2011 | 02:55 AM
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I am assuming you had the coolant level rechecked recently, and the thermostat replaced during all of this?

After the flush and refill, was the coolant system "burped" properly, to let out any air bubbles that have become trapped in it during the refill?
 
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Old 08-20-2011 | 07:24 PM
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If I remember correctly, I did not have the thermastat replaced. Would a bad thermostat cause it to overheat while driving on a upgrade? It does not overheat while driving on level roads.
 
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Old 08-21-2011 | 01:29 AM
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Probably not the thermostat then, but was the "burping" procedure done? Air pockets trapped in the system would cause it to not work at 100%, which could cause it to overheat under load (like towing or going up a hill).
 
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Old 08-21-2011 | 01:16 PM
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Does anyone know the steps to "burping" the cooling system? I would like to do this soon as I have a trip planned over the Labor day weekend and I need the Durango to be able to go!!!!!!!!
 
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Old 08-22-2011 | 06:45 PM
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The process is pretty standard for the most part, but there is a hex plug on top of the engine end of the upper radiator hose that needs to come out.

Remove the radiator cap and have engine idling with all heater(s) on full blast.

As the air purges out, the coolant level in the radiator will drop. Top off as needed and watch the hex bleeder hole. When nothing but pure coolant is escaping, time to close that off.

It also helps to run the rpms up to 1.5-2K several times to help move the air through the system and out. This process can take 20-45 minutes depending on ambient temps and how much air is in the system.

Don
 
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Old 08-22-2011 | 06:55 PM
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It also helps to park the vehicle on a slight incline while you perform the procedure, with the engine slightly higher than the rear.
 


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