Noise at idle

tomred · 11-30-2018, 08:13 AM

Hi all,
I have noticed a developing noise at idle. It can best be described as similar to a failing heater fan noise. I have had plenty of classic cars with this noise.
It’s there at idle but with a little rev it goes but comes back at idle. It is a automatic with 60k on it. It happens in gear and if I put it into N it sometimes goes away. As soon as I move off it’s gone until next time I stop.
It was quieter than it is now.

Any ideas

dts3 · 11-30-2018, 09:44 AM

Quote:

Originally Posted by tomred

Hi all,
I have noticed a developing noise at idle. It can best be described as similar to a failing heater fan noise. I have had plenty of classic cars with this noise.
It’s there at idle but with a little rev it goes but comes back at idle. It is a automatic with 60k on it. It happens in gear and if I put it into N it sometimes goes away. As soon as I move off it’s gone until next time I stop.
It was quieter than it is now.

Any ideas

I'm not sure what a failing heater fan sounds like, can you describe it a little more?

barncobob · 11-30-2018, 05:08 PM

water pump? could undo the drive belt for a very short time to see if noise is still there. could be PS pump also.:}

11-30-2018, 08:13 AM	#1 (permalink)
tomred Base Member Join Date: Apr 2017 Location: Dubai Posts: 24 Drives: 2013 370Z Roadster Rep Power: 8	Noise at idle Hi all, I have noticed a developing noise at idle. It can best be described as similar to a failing heater fan noise. I have had plenty of classic cars with this noise. It’s there at idle but with a little rev it goes but comes back at idle. It is a automatic with 60k on it. It happens in gear and if I put it into N it sometimes goes away. As soon as I move off it’s gone until next time I stop. It was quieter than it is now. Any ideas

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11-30-2018, 05:08 PM	#3 (permalink)
barncobob A True Z Fanatic Join Date: Sep 2015 Location: hangtown, CA Posts: 1,164 Drives: 16 370Z auto Rep Power: 590	water pump? could undo the drive belt for a very short time to see if noise is still there. could be PS pump also.:}