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Om352a question?? Help please

1229 Views 4 Replies 4 Participants Last post by  dvorocks
I have a om352a in my motorhome... I start it and the tempature rises pretty fast.. Usually goes up to 250f within the first 10 mns..well that's what the the temp gauage reads ... I changed the thermastat. Same thing happens... I ran it with no thermastat and for the first time the radiator got warm...
My best guess is the temp sensor is bad or maybe the gauge
Any ideas?
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