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Old 02-12-2020, 04:01 PM   #17
Gunner41
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Join Date: May 2011
Location: San Jose, Ca
Posts: 93
Re: 3500 overheating

Thank you all. I found the problem thanks to starting back from basics. It was a twofold issue. 1. The thermostat (while being new) was junk and would not open when I tested it in boiling water. 2. Heater core was blown out but wouldn't leak into the cab. I still have one issue ongoing with my A/C auxiliary fan but the truck wont go past 195-197 so cooling has been resolved (for the most part). Thank everybody for your continued help.
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