Rat like noise at Idle from the engine bay

sinceday1 · 02-06-2012, 10:21 PM

I went out to start my car up after a long standstill and I noticed a rat like noise coming from the engine bay.
It only seems to be there at idle and it's not consistent. It makes the noise at non-rhythmical pattern.

I tried to catch the noise on my phone cam but it's hard to notice due to other mechanical noises.

Does anybody have any idea what it could be?

(it was 3degree Celsius outside, my car has been parked for a week)

sinceday1 · 02-06-2012, 10:22 PM

and no. there wasn't a rat living in there.

TreeSemdyZee · 02-07-2012, 06:03 AM

Did you try pushing in the clutch to see if it goes away?

sinceday1 · 02-07-2012, 08:01 AM

I will give that a try.
It sounds like it's associated with some sort of rotating mass though.. not too sure.

mantella87 · 02-07-2012, 08:05 AM

It's probably a belt.

erkthejerk73 · 02-07-2012, 10:04 AM

+1 to the belt

vividracing · 02-07-2012, 11:23 AM

Is it like a squeaky sound? If so, I'd say belt as well.

sinceday1 · 02-07-2012, 11:52 AM

yeah. It's squeaky.. It's not consistent though. I figured it's belt as well but it concerned me because it's got a non-rhythmic pattern.

I'll have it checked out when snow clears... winter sucks.

02-06-2012, 10:21 PM	#1 (permalink)
sinceday1 Track Member Join Date: Oct 2009 Location: Canada Posts: 514 Drives: 09 Nissan 370Z M6 Rep Power: 16	Rat like noise at Idle from the engine bay I went out to start my car up after a long standstill and I noticed a rat like noise coming from the engine bay. It only seems to be there at idle and it's not consistent. It makes the noise at non-rhythmical pattern. I tried to catch the noise on my phone cam but it's hard to notice due to other mechanical noises. Does anybody have any idea what it could be? (it was 3degree Celsius outside, my car has been parked for a week)

02-07-2012, 11:23 AM	#7 (permalink)
vividracing The370Z.com Sponsor Join Date: Jun 2009 Location: Gilbert, AZ Age: 37 Posts: 7,306 Drives: 350Z,370Z,GTR Rep Power: 38	Is it like a squeaky sound? If so, I'd say belt as well. __________________ Rocky @ Vivid ♦ 480.966.3040 x236 ♦ Rocky@vividracing.com Email, PM, or call me directly for aggressive The370Z.com member pricing!!!

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02-06-2012, 10:22 PM	#2 (permalink)
sinceday1 Track Member Join Date: Oct 2009 Location: Canada Posts: 514 Drives: 09 Nissan 370Z M6 Rep Power: 16	and no. there wasn't a rat living in there.

02-07-2012, 06:03 AM	#3 (permalink)
TreeSemdyZee Premium Member Join Date: Dec 2009 Location: Kentuck-IANA Age: 59 Posts: 4,880 Drives: '09 370 & ‘14 Juke Rep Power: 27408	Did you try pushing in the clutch to see if it goes away?

02-07-2012, 08:01 AM	#4 (permalink)
sinceday1 Track Member Join Date: Oct 2009 Location: Canada Posts: 514 Drives: 09 Nissan 370Z M6 Rep Power: 16	I will give that a try. It sounds like it's associated with some sort of rotating mass though.. not too sure.

02-07-2012, 08:05 AM	#5 (permalink)
mantella87 Track Member Join Date: Jun 2011 Location: Sacramento, CA Posts: 590 Drives: 2011 Z34 MT Rep Power: 14	It's probably a belt.

02-07-2012, 10:04 AM	#6 (permalink)
erkthejerk73 Track Member Join Date: Mar 2011 Location: cincinnati Posts: 927 Drives: 13 F150 FX4 eb Rep Power: 15	+1 to the belt

02-07-2012, 11:52 AM	#8 (permalink)
sinceday1 Track Member Join Date: Oct 2009 Location: Canada Posts: 514 Drives: 09 Nissan 370Z M6 Rep Power: 16	yeah. It's squeaky.. It's not consistent though. I figured it's belt as well but it concerned me because it's got a non-rhythmic pattern. I'll have it checked out when snow clears... winter sucks.