Author Topic: 2013 2.2 Diesel on just over 100k with ticking/clacking engine noise on low revs  (Read 652 times)

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Offline drax

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hi everyone,
ive had a good look through and few seem to report this issue we have.

as per title, our 2.2 Diesel has a kind of ticking/clacking engine noise on low revs but if you boot it or just give it reasonable revs it sounds fine, just low down revs its pretty noisy and getting louder by the week.

i took it to a mazda specialist breifly for a quick free diag and they guessed injectors or oil problems but they'd need longer and lots of £££ to diag so im trying to hold off for now. my mechanic says he advises we change the oil for a thicker varient and do a service.

it had a full service a year ago and recently i tested swapping wth new oil and a bosch filter - which cured the noise for a few days, but then it came back. i then quickly swapped the oil filter with a genuine mazda filter and the noise went away for over a week before yet again coming back.

that's where i stand at the moment, any possible advice appreciated :)

Offline hanix

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Piston slap, low oil pressure at low revs. Most low oil pressure warnings don't come on till it's about 5psi which is a tad low. I think your mechanic suspects low oil pressure. Be careful about using heavier grade oils as you could interfere with the valve gear. I have just remembered a similar noise at low revs that turned out to be a bad bearing in the service belt tensioner, although that was on a Ford Car.
« Last Edit: September 10, 2019, 06:53:56 PM by hanix »

Offline drax

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Piston slap, low oil pressure at low revs. Most low oil pressure warnings don't come on till it's about 5psi which is a tad low. I think your mechanic suspects low oil pressure. Be careful about using heavier grade oils as you could interfere with the valve gear. I have just remembered a similar noise at low revs that turned out to be a bad bearing in the service belt tensioner, although that was on a Ford Car.
thank you for that bud! apologies i havnt replied sooner, hectic times!

i had a local mazda specialist look at it but the noise wasnt apparent for them at the time sadly but they suspect a dodgy injector. the noise is now getting worse as the weather warms up (doesnt do it as much when the weather is very cold) plus at low revs 20-40mph it's beginning to stutter slightly too unless your gunning it or doing 60/70+ so ill need to take it back to them for another look

Offline speedy mazda

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Have you had the sump dropped before to check for carbon buildup on the oil pickup strainer?,a common problem with them.It should not cost much to have the sump dropped and to check for any carbon or metal debris in the sump.when I bought my car the oil was not that clean even after an oil change so the dealer said about using an engine flush chemical.I had heard a lot of bad things about them but he said they had used before no problems,oil was so much cleaner afterwards.Perhaps not good to use on an old diesel with lots of carbon buildup as it may loosen big lumps that block things up.
I don’t think I would use thicker grade of oil you need a good quality oil of the recommended spec.Another thing those engines suffer is  stretched or worn timing chains.

Offline drax

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Have you had the sump dropped before to check for carbon buildup on the oil pickup strainer?,a common problem with them.It should not cost much to have the sump dropped and to check for any carbon or metal debris in the sump.when I bought my car the oil was not that clean even after an oil change so the dealer said about using an engine flush chemical.I had heard a lot of bad things about them but he said they had used before no problems,oil was so much cleaner afterwards.Perhaps not good to use on an old diesel with lots of carbon buildup as it may loosen big lumps that block things up.
I don’t think I would use thicker grade of oil you need a good quality oil of the recommended spec.Another thing those engines suffer is  stretched or worn timing chains.
thank you for this reply bud, that's a good shout regarding the oil pickup strainer, i'll get that checked! stretched or worn timing chain was a thought early on last year and my mechanic tried to take a look but it's buried away - he said from what he could see that nothing looked wrong with regards to this.

funnily enough i went to drive to the shop at lunchtime in work yesterday and the mazda cut out on me and wouldnt restart until the 3rd go - it cut out on me for the first time ever on the way to work as well but i put it down to me in the wrong gear or something, so it's not going anywhere until the mechanic is free to take a look and im borrowing a work vehicle for now luckily.

Offline speedy mazda

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Have you checked that there isn’t any outstanding recalls for you car as some people on here have had the timing chain done on a recall or under warranty.Your mechanic doesn’t seem very knowledgable suggesting thicker grade oil, and can’t check the timing chain.

Offline Willpower

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Your mechanic doesn’t seem very knowledgable suggesting thicker grade oil, and can’t check the timing chain.

I'd agree with that. Time to find someone a bit more knowledgeable and competent.
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Offline Jazman23

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I'd have the timing chain stretch checked as I've heard similar issues can be caused my a stretched change and as Speedy Mazda said, the 2.2D engines have a habit of stretching chains.

Frustratingly if your Mazda hasn't been recalled for a new chain before then Mazda will no longer change it under warranty if the car is over 6 years old. Even though a stretched chain can cause engine failure it's not classed as a Safety issue and only safety recalls are still done for free. That's what JCT600 in Leeds told me anyway.
Just had to have my chain changed by them for just shy of £1100

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