Noise from engine bay when not running

RoyMacDonald · Jan 1st, 2015, 23:29

A couple of times since having the car I've heard a noise from the engine bay when I've stopped and got out. Sounds like a very loud fan. Runs for about 5 minuets then stops. Hard to believe it's the radiator fan running so long this weather. Anyone else hear this noise? It's a D2 by the way.

Marc01 · Jan 2nd, 2015, 09:17

Probably related to the DPF cleaning cycle.

OldCroc · Jan 3rd, 2015, 07:51

I understand that the DPF cleaning cycle uses extra fuel which causes the engine to get hotter so the ambient temp probably has little effect. If you switch off during this cycle or shortly after it has finished the engine cooling fan may still be on. Do you do many short trips, traffic etc? as this may cause more DPF cleaning cycles and hoyyer engine. You may also experience the engine running a bit rough during a cycle.
With no temp gauge (what were Volvo thinking here?) it can be hard to tell.

RoyMacDonald · Jan 3rd, 2015, 20:13

Quote:

Originally Posted by OldCroc

I understand that the DPF cleaning cycle uses extra fuel which causes the engine to get hotter so the ambient temp probably has little effect. If you switch off during this cycle or shortly after it has finished the engine cooling fan may still be on. Do you do many short trips, traffic etc? as this may cause more DPF cleaning cycles and hoyyer engine. You may also experience the engine running a bit rough during a cycle.
With no temp gauge (what were Volvo thinking here?) it can be hard to tell.

Not many short trips.

Jan 1st, 2015, 23:29	#1
RoyMacDonald VOC Member Last Online: Feb 1st, 2023 11:27 Join Date: May 2007 Location: Rye, East Sussex View Photos By: RoyMacDonald	Noise from engine bay when not running A couple of times since having the car I've heard a noise from the engine bay when I've stopped and got out. Sounds like a very loud fan. Runs for about 5 minuets then stops. Hard to believe it's the radiator fan running so long this weather. Anyone else hear this noise? It's a D2 by the way. __________________ 1984 245 SE 1986 345 SE Auto 1991 940 TD Auto 2003 XC90 D5 SE AWD Geartronic2002 V70 D5 SE Auto 2014 V40 D2 SE Tiptronic Cross Country 2017 V40 D2 Cross Country Geartronic Pro 2015 XC60 D5 Polestar SE Lux Nav AWD Geartronic

Jan 3rd, 2015, 07:51	#3
OldCroc Member Last Online: Dec 23rd, 2016 21:32 Join Date: Dec 2013 Location: Lincoln	I understand that the DPF cleaning cycle uses extra fuel which causes the engine to get hotter so the ambient temp probably has little effect. If you switch off during this cycle or shortly after it has finished the engine cooling fan may still be on. Do you do many short trips, traffic etc? as this may cause more DPF cleaning cycles and hoyyer engine. You may also experience the engine running a bit rough during a cycle. With no temp gauge (what were Volvo thinking here?) it can be hard to tell. __________________ V40 D2 ES - Titanium Grey, Powershift, Winter Pack, Reversing Sensors

Jan 2nd, 2015, 09:17	#2
Marc01 Member Last Online: May 29th, 2017 20:11 Join Date: Sep 2014 Location: Oxford	Probably related to the DPF cleaning cycle.

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