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pominwa Profile
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Date Registered: 08-2017
TOTAL POSTS: 11
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Engine noise?


Hi,
Having bought my 03 2.5 petrol auto exxy, I've noticed the engine sounds a bit agricultural- almost like a diesel! Is this how they all sound or have I potentially bought a lemon?
Any advice will be appreciated.

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2003 2.5 exy 272,000kms
21/Aug/2017, 3:08 pm Link to this post Send Email PM   Send Private Message Blog
 
Wiz Au Profile
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Date Registered: 06-2017
Location: Canberra, ACT
TOTAL POSTS: 126
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Re: Engine noise?


Mine sounds a little "rattly" when cold but nice and quiet when warm. (208,000kms.)

What's your mechanical ability like and do you own a set of feeler gauges? First place I would start with is valve clearances.

Does the noise change with engine temperature or the same all the time?

Last edited by Wiz Au, 22/Aug/2017, 12:04 pm


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2004 T30 series II, Ti for now.
JRR50 Pathfinder, QD32ETi Turbo Diesel, with 'lots o fruit'.
Eventually looking for a white or silver 2011-2013 T31 TL (Diesel) to "pimp out".
21/Aug/2017, 3:15 pm Link to this post Send Email PM   Send Private Message Blog
 
pominwa Profile
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Date Registered: 08-2017
TOTAL POSTS: 11
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Re: Engine noise?


Thanks for replying.
Yeah I'm pretty handy with the spanners, I forgot to add it's only on accelerating until I get up to speed then it's fine.

Last edited by pominwa, 21/Aug/2017, 6:21 pm


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2003 2.5 exy 272,000kms
21/Aug/2017, 4:48 pm Link to this post Send Email PM   Send Private Message Blog
 
Revhead Kev Profile
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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5167
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Re: Engine noise?


What fuel are you running and which grade of oil ?
Being an 03, how many kms has it done ?

---
Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
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22/Aug/2017, 11:17 am Link to this post Send Email PM   Send Private Message Blog
 
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Date Registered: 06-2017
Location: Canberra, ACT
TOTAL POSTS: 126
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Re: Engine noise?


quote:

pominwa wrote:

Thanks for replying.
Yeah I'm pretty handy with the spanners, I forgot to add it's only on accelerating until I get up to speed then it's fine.



Makes me think a single injector not feeding in enough fuel then if it's only when accelerating/open throttle but still drives sorta OK?

Is it possible for you to say if it feels like it's only 1 cylinder, or all of them when you accelerate? This is hard to do if you're not familiar with various engines and how they sound when running well, and running poorly. I think even in this day and age of OBDII and computer diagnostics, sometimes the old "ear' and experience is just as good if not better diagnostic tool.


---
2004 T30 series II, Ti for now.
JRR50 Pathfinder, QD32ETi Turbo Diesel, with 'lots o fruit'.
Eventually looking for a white or silver 2011-2013 T31 TL (Diesel) to "pimp out".
22/Aug/2017, 12:09 pm Link to this post Send Email PM   Send Private Message Blog
 
pominwa Profile
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Date Registered: 08-2017
TOTAL POSTS: 11
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Re: Engine noise?


I put 98 fuel in as my Falcon ran very smoothly on it and oil I haven't got a clue.
It's done around the same mileage as the Starship Enterprise at 270,000 ks but it has full service history.
And yes, funnily enough I think it feels like it's running on 3 cylinders when accelerating.
Maybe I'm just used to driving a Falcon? 🤔

---
2003 2.5 exy 272,000kms
22/Aug/2017, 7:43 pm Link to this post Send Email PM   Send Private Message Blog
 
Revhead Kev Profile
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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5167
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Re: Engine noise?


Once our engines get over the 120k mark they usually like to be run on 10W40 rather than the usual 5W30. This seems to quieten them down and also stop slight oil consumption.
Sometimes at the extreme end like your 270k, the timing chain tensioner may need replacing and the "rattle" you hear on acceleration could be from it being too loose under heavy load.

---
Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog
23/Aug/2017, 8:42 am Link to this post Send Email PM   Send Private Message Blog
 
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Date Registered: 08-2017
TOTAL POSTS: 11
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Re:


I just checked the engine oil and it's showing that it's over the bump on the dipstick-the one above the full mark, would too much oil cause these symptoms? The dealer I bought it off did an oil change so I presume he overfilled it.


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2003 2.5 exy 272,000kms
23/Aug/2017, 2:16 pm Link to this post Send Email PM   Send Private Message Blog
 
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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5167
Reply | QUOTE
Re: Engine noise?


No, too much oil won't cause your noise.
Generally it will either be loose timing chain from too thin an oil grade (our chain tensioner is hydraulic with spring assist) or worn timing chain guides or valve buckets which have worn and therefore too much clearance (tappet noise).
Higher grade oil will help

---
Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog
24/Aug/2017, 10:53 am Link to this post Send Email PM   Send Private Message Blog
 
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Date Registered: 08-2017
TOTAL POSTS: 11
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Re: Engine noise?


Well I'm going to change the oil on Saturday and put in 10w40 as suggested and see how it goes, funnily enough the sluggishness has gone, maybe it was old fuel in the lines?
Thanks for your answers people 😎

---
2003 2.5 exy 272,000kms
24/Aug/2017, 3:36 pm Link to this post Send Email PM   Send Private Message Blog
 


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