TwinTurbo.NET: Nissan 300ZX forum - Re: Coolant temp gauge needle moves erratically.
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Subject Re: Coolant temp gauge needle moves erratically.
     
Posted by 90coupeconversion on June 30, 2008 at 10:12 PM
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In Reply To Coolant temp gauge needle moves erratically. posted by jkcizbck on June 29, 2008 at 06:56 PM
     
Message I had the same problem a couple of months ago. Coolant temp pigtail was loose. As I accelerated it would jump eratically(from fan airflow shaking loose). I replaced both the pigtail(set of 2 from dealer) and the sensor itself(since mine was almost 19 yrs old). Make shure that the coolant lecel is prpoer, air on coolant temp sensor can do this also.

     
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