1998 Nissan Maxima temperature gage rises and falls

Tiny
K3BRIMSTONES
  • MEMBER
  • 1998 NISSAN MAXIMA
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 143,000 MILES
This car is a salvage title and was sitting at the buyers parkway for a while. The car runs smooth and fine. But from the second day after I bought it, the temperature gage rises and falls along with the acceleration. No oil/coolant leaks can be seen and I had thermostat changed today but it did no good. One mechanic said the engine is bad and needs to be replaced. I don't want to believe that. Please help and thank you for your time.
Tuesday, November 4th, 2008 AT 1:25 AM

1 Reply

Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
Try replacing your temp sending unit. It could be just that.

To refute what the technician says about the engine being bad, perform a compression test on all cylinders. If they are within less than 20% difference, the engine is good.
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Thursday, November 6th, 2008 AT 8:59 PM

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