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82 Overheating in traffic

Old 09-07-2012, 11:09 AM
  #16  
MikeinBloomfield
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Guys--

Thanks for all the awesome replies. I am going to try a new fan clutch assembly, provided by one of the members here (at no charge! This place is the best) as kind of a "last resort." If that doesn't work, I think I'll know the problem is elsewhere.

Also, I am also going to replace the belt. Could a loose belt be part of the problem? Just a thought.

James, the temp gauge thing is interesting. The antifreeze was not boiling when I opened the hood. No steam anywhere. Also, the overflow tank was pretty full. How can I check if its accurate? Is there a sender I can replace?

I'll check my warning lights, but they do all seem to come on when I turn the key. The oil pressure gauge is something I keep an eye on, and judging by how it goes up and down depending on throttle, I think its working.
Old 09-07-2012, 11:18 AM
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MikeinBloomfield
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Sorry, so just one more question: My electric fan (in front of the radiator) should turn on when the gauge hits the 2/3 mark? I'm not sure I've ever seen it working, but I never did a check just for that, either. If it doesn't I need a new temperature switch (or fan motor)?
Old 09-07-2012, 11:24 AM
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Brad W
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I use to have the same issue. I tried everything. New fan, both electric and the belt fan.
Here is what I did and it seams to have fixed the problem.
1) Completely drain the block.
2) add one gallon antifreeze
3) add three gallons distilled water
4) add one bottle water wetter.

I did that and in the texas heat it keeps the temp at the normal range even sitting in traffic.

Brad
Old 09-07-2012, 12:05 PM
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G8RB8
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I'll reiterate. Do this ^^^ first. It's cheap and easy. The problem is most people assume antifreeze is a good coolant and more is better. It's a lousy coolant and you should use as little as possible. Down here I run about 15% with water wetter, pump lube, and corrosion inhibitor added separately.
Old 09-07-2012, 12:09 PM
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MikeinBloomfield
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Thanks guys, great advice.

Mike
Old 09-07-2012, 12:46 PM
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Lizard928
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To test the viscous fan.
Get the car to temp with the hood open. Have someone else turn off the motor while you watch the fan. If the fan spins more than 2-3 rotations after the motor is turned off, it's totally fried. A new one will stop pretty much with the engine.


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