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Unread 06-29-2016, 09:34 PM   #1
medic83
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Default Overheating problems

So a few years back I was driving and my temp gauge went to hot. I pulled over and it went down right away. I replaced the thermostat and the prob went away. Fast forward to last month and it started happening again. Only more frequently. Sitting in traffic mainly. I get going and it go's down. I have 160k miles and decided to do the thermostat, water pump, fan clutch, new serpentine belt. Of course.....it's still happening. I'm wondering if it's a bad radiator. Any ideas? It only happens at traffic or idle.
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Unread 06-30-2016, 06:16 AM   #2
caturi
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If youve been thru mud your radiator could be cloged..
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Unread 06-30-2016, 10:42 AM   #3
medic83
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Quote:
Originally Posted by caturi View Post
If youve been thru mud your radiator could be cloged..
Haven't been thru mud in a very long time. This is an aftermarket radiator as I broke the drain plug off when originally doing the swap in the front so I put in a new one. I haven't been thru mud since the stock one.
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Unread 06-30-2016, 12:51 PM   #4
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Pretty obvious but did you check the coolant levels and also see if it has a burnt smell? Also, check the radiator cap for tightness, hoses for leaks.
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Unread 07-01-2016, 12:37 AM   #5
gm350reratliff
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May be a silly question but did you verify it is overheating and not just a sensor problem?

If it is, could be corroded/clogged radiator (some aftermarket units corrode very easily), bad fan clutch, broken/damaged water pump impeller.
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