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1983 - 2012 Ranger & B-Series All Ford Ranger and Mazda B-Series models

Temperature Gauge Intermittent

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Old Oct 30, 2012 | 07:52 AM
  #1  
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daniele
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Temperature Gauge Intermittent

I have a 99 Ranger that the temp gauge is intermittent. I had a thread a couple of months back about my engine running too cool. I noticed the temp gauge issue after a coolant flush so I tried burping the truck as suggested on this forum. It seemed to work, but now I noticed that after driving 20-30mins. that the gauge indication will drop as if the engine hasn't been running and is cold. Sometimes it will come back up after a while.
I tried a new temp sensor, but I have the same results.
The wiring that I can see looks fine.
Does anyone have any suggestions?
 
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Old Oct 31, 2012 | 08:17 AM
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Randomally sticking open thermostat belongs on your suspect list.
 
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Old Oct 31, 2012 | 08:49 AM
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Thanks. I have been putting off changing that because it's not so easy on my truck.
 
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