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ISSPro trans temp guage erratically

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Old Dec 26, 2009 | 03:35 PM
  #1  
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kirkharrod
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From: Frankfort, KY
ISSPro trans temp guage erratically

My ISSPro trans temp gauge is fluctuating between 160-280 very erratically. Stock gauge is normal and not fluctuating. Which is correct? Would the fluid jump 100 degrees in seconds? The fluid was about a pint low but no burned smell.

Thanks!
 
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Old Dec 26, 2009 | 03:46 PM
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From: Frankfort, KY
NOt pulling anything, no radiator block
 
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Old Dec 26, 2009 | 03:59 PM
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No, it's probably electrical. Check the connection, if it's single wire connection, verify that you didn't use tape on sensor's threads. That's where it gets its ground. If all that's good, could be a bad sensor.
 
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Old Dec 26, 2009 | 04:28 PM
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Thanks! There was a loose wire at the "junction box" thing under the dash. I tightened it and will check it when I take it back out later.
 
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Old Dec 27, 2009 | 09:25 PM
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I have had the same problem about once a year. Every time (exept for once) the wire connection by the sensor in the tranny would get moisture inside and cause some corrosion. After the 3rd time I shrink wrapped it. The one time I mentioned above was a wire that came loose in the junction box under the dash - just like you mentioned.
 
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Old Dec 28, 2009 | 06:30 AM
  #6  
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From: Frankfort, KY
Originally Posted by white Buffalo
I have had the same problem about once a year. Every time (exept for once) the wire connection by the sensor in the tranny would get moisture inside and cause some corrosion. After the 3rd time I shrink wrapped it. The one time I mentioned above was a wire that came loose in the junction box under the dash - just like you mentioned.
I think this might be what is going on. I am going to take the sender out this afternoon and check it out. Thanks!
 
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Old Dec 28, 2009 | 11:15 AM
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Mike F250
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Club FTE Silver Member

Same here on the yearly cleaning. Usually mid winter. I figured next time I'll cut the plug out and solder, shrink tube the connection. Hope I would never have to remove the sender...
 
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