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Hi readers,
i drive a 2006 Mazda 2 1.5. It has about 165000km on it. I do an oil and filter change every 10000km. In the morning when i start the engine, i can hear a slight ticking sound from the engine. The ticking is more pronounced when i start driving especially when i accelerate harder. The ticking goes off when the engine is warmed up after driving for about 5 minutes. When the car is left alone for about four hours and when i start driving again, the ticking sound could be heard again and it goes away after about 5 minutes.
I watched a ETCG video and saw somewhere that it might either be the lifters or the intake manifold. Anyone able to give me which way to go about fixing it?
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The engine may be getting a bit worn at that mileage. An important note is to make sure you use the correct viscosity oil as stated by the manufacturer. You might also consider a high mileage oil to help keep your seals from leaking. The noise may be nothing to worry about. Engines with hydraulic lifters tend to develop noise over time. If it is the lifters, you’ll have to replace the cam and lifters as a set. You can’t replace one without the other. More info on finding noises here.
http://www.ericthecarguy.com/faq/diagnosing-noises-in-your-car
Good luck and keep us posted on your progress.
Those engines are known for piston and cylinder wall wear especially at higher mileage. I wouldn’t worry too much about it as long as the noise goes away when the engine is warm.
You might consider changing the oil a little more often, 10000Kl is pushing it a bit unless you’re running synthetic oil.
Don’t scare him
OP, it’s regular rocker arms noise. Metal expands and noise goes away, as engine warms up. I am not sure, but if you have adjustable rockers, it’s time for valve job. Long due. If not, then you’d be better off doing more frequent oil changes.
Hope, you have hydraulic lifters, not tappets, like Toyota. Expensive adjustment.
If you do have hydraulic lifters, you need to de-sludge your engine. That clears small oil passages in lifters. Seafoam in oil for 500 miles, then oil change.Not a mazda guy but don’t rule out exhaust leaks. Probably way off but have scene those kick people in the butte thinking it was internal engine noise.
I’m quite sure my car has hydraulic lifters. I checked the users’ manual and it did mention something about valve adjustment. I’m using syntactic oil. Maybe the viscosity is incorrect. Manual did mention to use 5w30 and i’m using 5w40. That might have cause the sound to surface as well.
Just a question, will exhaust leak cause the sound when cold and sound goes away when engine is hot? I’m pretty sure the sound is coming from the engine block. Although i did hear a little squeaking sound coming from my cat convertor when i put it to drive. I’m hoping that isn’t breaking down as well.
I also read somewhere that hydraulic lifters can be removed and cleaned. Reason being they are gummed up with gunk thus not moving like they were supposed to.
[quote=”yanbros” post=108761]I’m quite sure my car has hydraulic lifters. I checked the users’ manual and it did mention something about valve adjustment. I’m using syntactic oil. Maybe the viscosity is incorrect. Manual did mention to use 5w30 and i’m using 5w40. That might have cause the sound to surface as well.
Just a question, will exhaust leak cause the sound when cold and sound goes away when engine is hot? I’m pretty sure the sound is coming from the engine block. Although i did hear a little squeaking sound coming from my cat convertor when i put it to drive. I’m hoping that isn’t breaking down as well.[/quote]
It’s never a good idea to go outside of the manufacturers recommendations for oil viscosity. What can happen is increased top end wear as a result of the oil taking longer to get to the top end of the engine during start up. We hear about it all the time here on the forum. I even made a video addressing these issues.
No, you really can’t recondition lifters. If they’re worn out, they should be replaced along with the cam shaft as the cam and lifters are a matched set. If you install one without the other damage will result.
My advice is to switch to the correct viscosity oil and don’t worry about it. Older engines can make a ton of noise before it becomes a real issue.
The car is starting to eat oil and drink coolant. No visible leaks, nor blue nor white smoke. Time for an engine rebuild? Mileage is now about 185K Km. I haven’t fix the ticking noise as well.
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