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Wierd Temp Reading

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Old Jun 16, 2003 | 12:12 PM
  #1  
Glutamine83's Avatar
Glutamine83
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Default Wierd Temp Reading

It was a hot one in manitoba with the mercury pushing 30C +
I was driving the vette down a long stretch of highway and I notice the temp gauge reading 240!!!!! i'm thinking, holy smokes, this is crazy, luckily I had a mechanic friend who lived a few miles away, so I boogy down there and tell him to get the temperature gun out to check the temps....

we check the upper rad hose from intake to the rad, 200F, we check at the connection to the intake, ~200F, we check another hose, ~200F, then we check where the temp sensor is (put the gun on the sensor) 240F....???
i have headers and the temp sensor is about 2inches from the header tube
any ideas on remedying this situation, it is always reading over 220F, even though the water isn't that hot
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Old Jun 16, 2003 | 12:17 PM
  #2  
norvalwilhelm's Avatar
norvalwilhelm
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Joined: Nov 2000
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From: Waterloo ontario Canada
Default Re: Wierd Temp Reading (Glutamine83)

Could be the sensor is shot. It is water cooled so the header heat shouldn't bother it. Price a new sending unit and replace it.
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Old Jun 16, 2003 | 12:19 PM
  #3  
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Glutamine83
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Default Re: Wierd Temp Reading (norvalwilhelm)

is a temp gun, placed on the edge of a hose accurate??? or does the hose shield the heat?
:grouphug:
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Old Jun 16, 2003 | 01:18 PM
  #4  
Ki m Le's Avatar
Ki m Le
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Joined: Sep 1999
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From: MI
Default Re: Wierd Temp Reading (Glutamine83)

What type of temp gun is it? How did it register the temp? (Direct contact?). The tem sender would be more accurate, because the water temp in the heads is where we wan to monitor.
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