Ticking noise when idleing

blau iii · 12-19-2016, 12:55 PM

I was just at the ATM and noticed a strange ticking noise. It went away if I revved it a bit. No noticable performance issues. 2008 335i with about 77k miles. Recently did the walnut blasting. Have not done the belt of WP/t-stat.. no codes.

Thoughts?

Boston335iGuy · 12-19-2016, 01:01 PM

I have similar noise , did my water pump and thermostat, ticking could still be heard

blau iii · 12-19-2016, 01:02 PM

Quote:

Originally Posted by Boston335iGuy

I have similar noise , did my water pump and thermostat, ticking could still be heard

good to know.. have you done your belt? i know i'm on borrowed time but glad to know its not the sound of the WP dying.

ucdbiendog · 12-19-2016, 01:08 PM

fuel injectors do make a clicking sound that is normal

titium · 12-19-2016, 01:27 PM

fuel pressure relief valve. is the ticking is louder then the normal injector noise and very metallic sounding?

afaik it doesn't affect performance.

NoQuarter · 12-19-2016, 01:28 PM

Quote:

Originally Posted by ucdbiendog

fuel injectors do make a clicking sound that is normal

Agreed. You guys are hearing the noise from your fuel injectors.

Remove the engine cover and the sounds will be even louder.

The ticking goes away when you rev the engine because the RPMS go faster so the clicking becomes a single noise because you can no longer discern the slower pulses. And because the engine gets louder.

musa · 12-19-2016, 02:11 PM

Quote:

Originally Posted by titium

fuel pressure relief valve. is the ticking is louder then the normal injector noise and very metallic sounding?

afaik it doesn't affect performance.

Fuel pressure relief valve? Interesting. Is this something that can be replaced? Where is it in http://www.realoem.com engine diagram? Or is it a component integrated into the fuel rail?

musa · 12-19-2016, 02:19 PM

Quote:

Originally Posted by musa

Fuel pressure relief valve? Interesting. Is this something that can be replaced? Where is it in http://www.realoem.com engine diagram? Or is it a component integrated into the fuel rail?

Ok, so that is integrated into the HPFP. Here's another thread about that noise together with it's recording.
http://www.bimmerfest.com/forums/sho...d.php?t=715155

titium · 12-19-2016, 03:13 PM

Quote:

Originally Posted by musa

Quote:

Originally Posted by musa

Fuel pressure relief valve? Interesting. Is this something that can be replaced? Where is it in http://www.realoem.com engine diagram? Or is it a component integrated into the fuel rail?

Ok, so that is integrated into the HPFP. Here's another thread about that noise together with it's recording.
http://www.bimmerfest.com/forums/sho...d.php?t=715155

seperate from the hpfp I'm pretty sure connected to it though

STR8-6IX · 12-20-2016, 05:34 PM

change your oil

Boston335iGuy · 12-22-2016, 05:20 PM

Haven't had my belt done recently, changed oil 3k miles ago...it's not a metal sound at all

Glad that sound is normal!

Miller335 · 12-22-2016, 07:36 PM

Mine has a slight ticking noise at idle since I bought it at 23k miles.
Its only on a cold start, doesn't tick right away(usually after 30 seconds after cold start), it goes away at some point as engine warms up and its only at idle if I rev the engine it goes away.

I feel its one or two of the injectors.

Jaronbwall · 12-22-2016, 08:14 PM

Injectors. Totally normal. My car does the same as did my previous 335i.
Someone mentioned taking the engine cover off. It's crazy loud when driving.

MJ80. · 12-22-2016, 10:19 PM

I had a new ticking that started directly after an pil change, walnut blast and spark plug change... Its quite loud any ideas ? it is present at idle and rises with RPM, thought i cant hear it as the RPM rises because of the noise from exhaust.

12-19-2016, 12:55 PM	#1
blau iii Lieutenant 128 Rep 451 Posts Drives: 2008 335i schwartz on scwartz Join Date: Jul 2015 Location: Pittsburgh iTrader: (0)	Ticking noise when idleing I was just at the ATM and noticed a strange ticking noise. It went away if I revved it a bit. No noticable performance issues. 2008 335i with about 77k miles. Recently did the walnut blasting. Have not done the belt of WP/t-stat.. no codes. Thoughts?
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12-19-2016, 01:01 PM	#2
Boston335iGuy Private First Class 25 Rep 156 Posts Drives: 2011 AW 335i m sport coral red Join Date: Oct 2016 Location: Boston iTrader: (0)	I have similar noise , did my water pump and thermostat, ticking could still be heard
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12-19-2016, 01:08 PM	#4
ucdbiendog Captain 91 Rep 610 Posts Drives: 2008 335xi E90 Join Date: Mar 2008 Location: Reno, NV iTrader: (0)	fuel injectors do make a clicking sound that is normal
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12-19-2016, 01:27 PM	#5
titium Major 327 Rep 960 Posts Drives: 2009 BMW 135i Join Date: Jun 2015 Location: Sydney iTrader: (0)	fuel pressure relief valve. is the ticking is louder then the normal injector noise and very metallic sounding? afaik it doesn't affect performance.
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12-20-2016, 05:34 PM	#10
STR8-6IX Banned 536 Rep 2,825 Posts Drives: RWD 528i N52 Join Date: Nov 2016 Location: Toronto iTrader: (0)	change your oil
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12-22-2016, 05:20 PM	#11
Boston335iGuy Private First Class 25 Rep 156 Posts Drives: 2011 AW 335i m sport coral red Join Date: Oct 2016 Location: Boston iTrader: (0)	Haven't had my belt done recently, changed oil 3k miles ago...it's not a metal sound at all Glad that sound is normal!
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12-22-2016, 07:36 PM	#12
Miller335 Colonel 291 Rep 2,189 Posts Drives: 2007 E92 Join Date: Oct 2013 Location: Portland, OR iTrader: (0)	Mine has a slight ticking noise at idle since I bought it at 23k miles. Its only on a cold start, doesn't tick right away(usually after 30 seconds after cold start), it goes away at some point as engine warms up and its only at idle if I rev the engine it goes away. I feel its one or two of the injectors. __________________ 2007 E92 335 6MT w/335is clutch FBO MHD E60 Wedge map 49k miles
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12-22-2016, 08:14 PM	#13
Jaronbwall Driving cars and riding bikes really fast 285 Rep 1,002 Posts Drives: 2009 335i Join Date: Sep 2014 Location: Indianapolis iTrader: (0)	Injectors. Totally normal. My car does the same as did my previous 335i. Someone mentioned taking the engine cover off. It's crazy loud when driving. __________________ 335i, sport pkg, 3 pedals, Blacked out, LED markers, OZ Ultraleggera wheels, Firestone Indy 500s, x-pipe, vibrant 1792, PE mod MHD stage 2+, BMS DPs, ARM charge pipe, Tial BOV, ARM FMIC, dual cone, CSF radiator, M3 control arms, sways, HAWK pads. https://www.strava.com/athletes/8309149 Follow me on Strava
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12-22-2016, 10:19 PM	#14
MJ80. Major 204 Rep 1,103 Posts Drives: E92 335i DCT Individual Join Date: Oct 2013 Location: Gold Coast, Australia. iTrader: (0)	I had a new ticking that started directly after an pil change, walnut blast and spark plug change... Its quite loud any ideas ? it is present at idle and rises with RPM, thought i cant hear it as the RPM rises because of the noise from exhaust.
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