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Old 08-08-2016, 08:26 PM   #1
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Tow truck over heating

Ok traveling toward Seattle right now just a bit east of Denver. I'm pulling my 02 Salem 28.5 with my 03 2500 HD Silverado. Over heats & dies this is after a new Thermostat & water pump
Stuck on RV spot in Hudson Co.
What's wrong...?

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Old 08-08-2016, 08:28 PM   #2
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Radiator partially plugged.

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Old 08-08-2016, 08:46 PM   #3
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Just because the thermostat and water pump are new doesn't mean they are GOOD. I've seen thermostats installed upside down and because the people doing the work didn't know how to properly refill the radiator step by step. Instead, they partially refilled it and sent the owner on his way.
Still, it wouldn't hurt to have the radiator flushed especially if you haven't been changing the coolant regularly. I personally flush mine every other year and add new coolant.
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Old 08-08-2016, 08:48 PM   #4
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Ohhh I totally forgot about the need to properly burp a Duramax cooling system.
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Old 08-09-2016, 01:18 AM   #5
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Tow truck over heating

Cooling stack is likely plugged up with 13 years of bugs and other road grime...
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Old 08-09-2016, 04:26 AM   #6
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Fan clutch

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Old 08-09-2016, 12:40 PM   #7
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Turn heater on, start truck without radiator cap on, let warm up, and add as necessary...
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Old 08-09-2016, 01:49 PM   #8
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13 years on an original radiator pulling heavy in the mountains is asking for trouble...
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Old 08-09-2016, 01:51 PM   #9
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If it has a cap on the radiator start up the truck when it reaches about 197 you should see the water moving in the radiator. If the stat is open the water should be moving if it is not could be the thermostat.(doubt it has a defective thermostat)
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Old 08-09-2016, 02:25 PM   #10
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Remove cap whn cold, let it idle and look foe bubbles= combustion getting into coolant. Gasket, crack in cyl head or block. Just an idea

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heating, truck

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