Question about 1999 Nissan Frontier

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Engine overheating after waterpump replaced

Water seems to be circulating

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  • Ed Garner Jan 13, 2013

    Belts are tight. Upper hose gets hot, lower hose stays cool.



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  • 316 Answers

My first suggestion would be to check the belt on the water pump to make sure it is tight.

Posted on Jan 13, 2013

  • Ed Garner Jan 13, 2013

    Belts are tight. Upper hose gets hot, lower hose stays cool.



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Posted on Jan 02, 2017

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SOURCE: my pulsar in overheating

Make sure the fans are coming on or it will over heat. If the fans come and the gauge is reading hot check the thermostat. Follow the top radiator hose to the engine block it probably has 2 bolts holding the thermostat housing on.

Posted on Apr 17, 2010

Testimonial: "we actually found out the fans wouldn't come on without the AC switch on it didnt have a thermostat so might have been modified by the previous owner "

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SOURCE: redid the cooling system complete

your engine has 2 bypass hoses coming off the air intake that wrap to the rear of the engine one may be blown but if you replace one might as well replace both the are only 5-6 bucks and have to be ordered from the dealership if that doesnt work id start looking to replace heater core before you start getting puddles in your floor board

Posted on Feb 19, 2011

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SOURCE: no water circulation leading to overheating

How do you know that there is no water circulation?
You need to check the thermostat, the solution in the coolant cant be just plain water, it should be 50/50 and make sure that there is no deposits built up in the radiator. Also check the water pump to be sure that the fins are not worn out.

Posted on Sep 10, 2012

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