TwinTurbo.NET: Nissan 300ZX forum - don't rely on the stock gauge, it's not linear
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Subject don't rely on the stock gauge, it's not linear
     
Posted by Ahmed (Chicago) on August 07, 2012 at 11:52 AM
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In Reply To Engine overheating. need help posted by tian2bing on August 07, 2012 at 05:50 AM
     
Message first you need to measure the actual temps with Nissan Datascan or get a handheld temp gauge...it should be around 175-190...if you are getting above 200, then you have an issue

it could be (most likely):

1) thermostat
2) water pump
3) fan clutch (this is what caused my overheating)


in a properly cooling car, the aux fan shouldn't have to come on at all, so that's prob not the problem. start with what I mentioned. if you search, there is a way to test the fan clutch with the 'spin test'

     
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