1989 Nissan 300zx none turbo

Randy Ford

Asked by Mar 03, 2016 at 10:10 AM about the 1989 Nissan 300ZX 2 Dr GS

Question type: General

My 1989 Nissan 300zx None Turbo T-top
Auto Keeping rinning hot, I Chang heater
value with new heater value, it had a leek in
heater hose fix that. And still running hot.
Water boiling inside the water pump, I'm
seeing lil smoke coming  from side engine
gotta focus hard to see it.  The fans work
fine. But I have no a.c. so its not that. It's
cold outside and its running hot. please help
me with my car problems. I don't know what

4 Answers


Could be a couple of things, as you are hearing coolant boiling in the water pump I would be suspicious of it not flowing, it could be the impellers are corroded especially in a rig that old, the next would be the thermostat not opening fully, and finally the radiator is restricted.

Randy Ford

So what I should do what do I need or what do I need to buy to fic this issues problem of my car?


If your comfortable working your own rig I would start with the thermostat and the water pump as that is where you hear the noise. You should always replace the thermostat anytime you do any cooling system repairs.


mine had the same problem clutch was not working for the fan converted to electric

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