Hi, new to this forum, but long time Mazda owner 87 rx7 turboII, 93 rx7, 2012 cx9, and now a 2019 cx9 with 24000miles on it. The car seems great, drives really smooth, no codes or anything, but at idle it makes a very noticeable ticking sound that I can hear with the hood open or closed. I know that fuel injectors make a ticking sound but do not think this is what it is. Is this a common sound from this engine? I was thinking it may have been the valve lifters, I opened the oil fill cap to see if I could hear the noise more prominently. When I removed the cap air was just puffing out of the oil fill hole in the valve cover. I was surprised at the force, it was actually blowing some oil out. Anyway, I was wondering if these two things were normal for this engine? Thanks
2019 CX-9 engine ticking sound at idle
- Thread starter jfirko
- Start date
Oh, also, the sound seems to be coming more from the driver's side of the engine.
Does this sound suddenly stop/go away or is it constant as long as the engine is running?
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- 2016 Mazda CX-9
The new CX-9 is a direct injection turbo 4-cylinder. Usually, 4-cylinder engines have a ticking sound when they’re idle. It happens to my CX-9 as well. You’ll notice that when the car is in drive, or when the vehicle is moving, the ticking sound either slightly decreases or goes away.
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- Mazda
It may be difficult even than because to the untrained ear a Skyactiv engine is basically noisy, and most of those sounds are perfectly normal. Here is an example of the different normal sound from a Skyactiv 2.5 engine with less than 25k miles.
