Question about Nissan Maxima

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My gauges are going haywire. the fuel and temp are immediately rising to the full/overheating zones. the tach is fluctuationg between 0-10 and the odometer registers 999999. however, the auto isn't overheating.

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  • michael banks Aug 30, 2010

    1998 nissan maxima gxe, v6

  • michael banks Aug 30, 2010

    i have a 98 nissan maxima V6. my instrument gauges are going haywire such as; the fuel and temp gauges rise to the top of their maximum reading. the tachometer rapidly fluctuates between 0-10. the mileage odometer blanks out and gives me a false reading of 99999. currently i have 151,000 miles. and the car isn't overheating. what could be the problem?

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Hello! I'll need the year, make, model and engine size...Guru..Saailer

Posted on Aug 30, 2010

  • David Burbee
    David Burbee Aug 30, 2010

    Hello! The Combination Meter, in the instrument panel, has lost its ground input...Pin #16 on the connector plug is the ground feed (Black wire) to the gauges that are effected...It could be open any where along its path...I do not know if you have experience in this area, but it's a tough fix...If you have a multimeter there are a few tests you can perform...Set meter on lowest ohm scale, X10 is good...Place one probe on the negative post of battery and the other on bare metal chassis...Record reading...Move that probe to the engine block...record reading...Both should be very near a dead short (zero ohms)...

    Guru..........Saailer

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The speed sensor is bad can give a weird reading. If you disconnect the odometer, then see if other gauges get effected. After disconnecting the odometer cable, the other gauges continue the problem then there is a problem with the instrument. If you don't see problem after disconnecting the odometer cable then there is a problem with the speed sensor.
How do you know the car is not overheating if your temperature gauge is not reading correctly. If you disconnect the coolant sensor on top of block engine, what is the display? The coolant sensor is the most common part to be replace first if you don't have high temp reading after remove the sensor wire. Good luck.

Posted on Aug 30, 2010

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Posted on Jan 02, 2017

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