Question about 2005 Nissan 350Z

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350z idle rpm goes down whe cooling fan is turned on

My 350Z idle RPM drops and the goes up and down when the cooling fan is turned on, any help?

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Posted on Jan 02, 2017

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SOURCE: 2005 350z headlight upgrade to 08 xenon headlights

Do you know if the 08 bumper even fits?

Posted on Jun 17, 2008

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SOURCE: when should timing chain be replaced on nissan 350z

It is a timing chain, and 100,000 miles is a good time to change it.

Posted on Feb 17, 2009

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SOURCE: 04 350z convertible

check for voltage to the top motor and the relater fuzes and relay.

Posted on Mar 13, 2009

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SOURCE: diagram for 04 nissan 350Z roadster

one under the hood and one at the drivers kick panel

Posted on Mar 30, 2009

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SOURCE: nissan 350z.2004.overheating problems./changed fan

I am not aware that there are indeed two thermostats on the 350Z. I would be more suspicious of the water pump causing the overheating problem. Is the water pump leaking? Leaking is a sure sign that the water pump is defective, but I have seen water pumps that were not leaking, but were still faulty because they were partially clogged up. Anyway, hope this helps and best wishes.

Posted on Aug 05, 2009

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2005 350z touring overheats while in stop and go . recently ran just to High range while idle on very cold day. Coolant change and power wash radiator did not cure problem

Here's something that's a very common cause of overheating, and it's easy to check.

How to test the thermostat in most vehicles;
Make sure the heater is off, start the engine and let it run for 6 to 8 minutes, ( this will allow the
engine to reach, " normal operating temperature "), from the inside of the vehicle turn the heater
temperature on high and turn the fan speed on high.
1. Listen very closely for a click sound from the engine, ( most thermostats make a click when
they open )
2. Watch your temperature guage, it should begin to lower as the coolant starts to circulate.
3. Usually within a few minutes the radiator fan will kick.

What the thermostat does;
It seperates your coolant into two parts. The first part is in your engine, the second part is in your
radiator and the coolant reservior. When the coolant in the engine reaches the temperature rating
on the thermostat the thermostat opens to allow the two parts of coolant to change places. Now
the cooled coolant in the radiator and reservior flows into the engine while the heated coolant flows
from the engine into the radiator and reservior to be air cooled by the radiator fan.

I really hope this helps you.

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Fan wont stop running after turning off 2004 nissan 350z

there is an after run module controlled by a fan switch that will run the fan if the engine compartment is hot.the switch could be shorted,or the module is bad.the fan normally runs for a few minutes then turns off.

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2003 nissan 350z will start but dies within seconds it goes to idle at 1000rpms and when gas peddle is pushed it dies

most likely a fuel pump issue. spray some break clean in the intake ande see if you can rev it up as your spraying, If you can you havea weak fuel pump

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