Question about 1989 Nissan Maxima

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Where can i find the heater core in a 1989 nissan maxima

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They are usually behind the glove box under the dash.

Posted on Dec 08, 2008

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SOURCE: 1989 nissan maxima

no it only has the two

Posted on Jul 10, 2008

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SOURCE: no heat just cold air how do i fix this

There are several things it could be as you didn't give enough detail.

  1. The water hoses to the heater core or the heater core itself may be plugged
  2. The accessory relay that is turned on by the ignition switch may not be passing power on to the heater system-get the wiring diagram and trace the power with a VOM or tracer light.  There is also a fusable link that is between the battery and the power to the accessory relay that may be blown and blocking the power..
  3. The control valve that permits hot water to go from the engine to the heater core may not be energized or opening-or plugged.

Posted on Feb 10, 2009

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1990 nissan maxima. have replaced thermostat, but cant get any heat, or defrost. flushed out core.and replaced all fluids.

Check the hoses to the inside heater core for kinks. Check heater (not radiator) core for being plugged. Check heater valve to see if it lets coolant through when turned on.

Oct 16, 2014 | 1990 Nissan Maxima

1 Answer

02 maxima blows no heat. Only one hose going to core is warm. Have new t-stat and new radiator. I'm having trouble locating blend door. Still don't know if that's the problem.

If only one hose going to the core is hot, then the heater core valve is bad. It's what stops or allows hot coolant into the core. Only one hose being hot means coolant is not traveling through the heater core. Have that valve checked out.

Jan 12, 2011 | 2002 Nissan Maxima

1 Answer

I flushed radiator and replaced thermostat and barely blows warm heat in my 90 maxima Why?

I would venture a guess that your heater core is plugged up. Neither of your remedies is going to fix a plugged heater core.

Nov 23, 2010 | 1997 Nissan Maxima

2 Answers

No heat. New heater core,thermostat and water pump. I can hold the heater control valve open by hand and still no heat.

Check the temp control cable in side the car,it opens the temp door,it is most likely the problem.

Jan 28, 2010 | 1989 Nissan Maxima

1 Answer

I have a 1989 Nissan Maxima and water is leaking somewhere into the car my floor is always wet...wat do i do?

It sounds like the heater has sprung a leak. As a temporary fix you could completely take off one of the hoses leading to the heater. Then disconnect the other hose from the heater, take that end and connect it to where you disconnected the other end of the other hose (probably on or near the water pump or the radiator). That would leave no water going to the heater.

Nov 22, 2009 | 1989 Nissan Maxima

2 Answers

No heat just cold air how do i fix this

no heat or air could be a fuse issue

Jan 09, 2009 | 1989 Nissan Maxima

1 Answer

No heat just cold air

Make sure that the water level is correct at the radiator, first thing...

Jan 09, 2009 | 1989 Nissan Maxima

1 Answer

Install block heater on 1996 Nissan maxima 3 liter

It is no a job for a do it yourselfer. I recommend taking it to a qualified repair shop. The heater core is mounted under the dash in the evaperator/heater case and it is a very involved job to disassemble and reassemble the correct way. Sorry.

Dec 24, 2008 | 2007 Nissan Maxima 3.5 Sl Sedan

1 Answer


Could be a blocked heater core (the part inside the dash that the hot water runs thru), or the heater blend door motor not operating (the part that allows the air from the heater into the vents), or a broken blend door shaft, or something similar. Most of these would require a workshop to attend to them, although you could try flushing out the heater core, by removing those hoses you spoke about from the pipes they go onto at the firewall and directing water at a reasonable pressure (not high pressure like a steam cleaner) into one of the pipes to see if you get a whole lot of crud come out. This may or may not fix the problem and I recammend you take it to a garage and if cost is an issue just tell them you want it diagnosed, and to advise on a price to repair. Give them an upper limit on what you expect to pay for diagnosis as well.

Oct 21, 2008 | 1989 Nissan Maxima

1 Answer

1989 maxima no heat in vehicle

Put your hand on the heater hoses as close to the fire wall as possible find out if both hoses are hot.Do this when the vehicle is cold allow car to heat up with heater open and running.If both equaly hot then heater core at fault.If different check water supply to cold hose.

Oct 13, 2008 | 1989 Nissan Maxima

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