Nissan Repair Questions? Ask a Mechanic for Answers ASAP
hi the most likely cause of this problem is a loose connection on the engine temp sensor located in the top radiator hose housing the weld on the tip of the sensor come loose and cause the gauge to only work sometimes. you should check and replace the temp sensor . let me know if you have more questions .
The wire connection was dirty and nearly disconnected, thanks for the great lead.