Ticking Noise From Engine Due to Sticking Valve Lash Adjusters on Mazda Mazda6

A loud ticking noise (hydraulic valve lifter noise) may be heard from the top of the engine, particularly when the engine is still cold. The noise may occur more frequently on higher mileage vehicles; Hydraulic valve lash adjusters may need to be replaced to correct this issue. Following the maintenance schedule for oil changes will also help prevent a recurrence of the noise.

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Average mileage: 99,677 (25,000–200,000)
Engines affected: 2.3L 4 Cylinder, 2.5L 4 Cylinder, 3.0L V6
6 model years affected: 2003, 2004, 2005, 2006, more2008, 2014
50 people reported this problem
25 people shared problem details
2006 Mazda Mazda6- 2.3L 4 Cylinder79,000
I have been told I need a new engine. So it sits in my driveway for now. It needed an oil change before I went on vaca came home and my sister used it. The next day it sounded so loud like putting a card in the spokes on a bike. I am trying to figure out if it really is the engine??
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2003 Mazda Mazda6- 2.3L 4 Cylinder96,000
Loud ticking from my 2.3 L, didn't notice it until I switched to full synthetic oil, wonder if that it the culprit?
2006 Mazda Mazda6- 3.0L V6110,000
Ticking Noise From Valve
2005 Mazda Mazda6- 2.3L 4 Cylinder93,365
Loud top end ticking noise when engine warms up. Diagnosed the problem, valve lifters. We are going to replace all eight of them, along with spark plugs.
2004 Mazda Mazda6- 3.0L V6150,000
Overheating
2004 Mazda Mazda6- 2.3L 4 Cylinder98,000
I've just started to hear a tapping "ticking" noise from the top end of my 2.3 liter. I have decided to fix it all myself. upon removing the spark plugs, I discovered the culprit of my oil consumption, a blown head gasket! In the coming days and possibly weeks (don't have a ton of free time to work on it) I will proceed to remove the cylinder head from the car and plan to replace the head gasket and the hydraulic bucket valve lifters in the process. Hell, I might even have the head ported and polished!! This problem has been explained to me as having faulty/dirty valve lifters - we shall see.
2006 Mazda Mazda6- 2.3L 4 Cylinder65,000
VERY loud ticking from engine at all times.
2005 Mazda Mazda6- 3.0L V6120,000
Ticking noise/ smoke from engine
2003 Mazda Mazda6- 2.3L 4 Cylinder129,000
ticking noise from back of engine comes and gos sound like popcorn cooking at times
2014 Mazda Mazda6- 2.3L 4 Cylinder27,000
My car is actually a 2015 but it does not give me that option
2005 Mazda Mazda6- 2.3L 4 Cylinder120,000
Have same ticking issue. Gets louder when accelerating. Hope its Hydraulics problem about to work on it tonight. Will take pics and post how long it takes plus steps I took.
2003 Mazda Mazda6- 3.0L V6
noisy the house when it first starts seems to be until I get some oil to the top of the engine maybe about 30 seconds. after that it runs quiet and fine seems to run good otherwise
2003 Mazda Mazda6- 3.0L V6
noisy the house when it first starts seems to be until I get some oil to the top of the engine maybe about 30 seconds. after that it runs quiet and fine seems to run good otherwise
2005 Mazda Mazda6- 3.0L V6120,000
Ticking noise from engine. Car idles and stalls after 5-10 minutes. Car has to sit for 20-30 minutes before it starts again. No check engine light or code is found for issue.
2004 Mazda Mazda6- 2.3L 4 Cylinder149,720
I'm hearing the ticking noise just put some seafoam in my gas tank
2008 Mazda Mazda6- 2.3L 4 Cylinder100,000
There's a loud ticking noise of the top of the engine.
check intake manifold runner control. use stethescope on engine and intake, if louder on intake then that's the problem. Or disconnect IMRC valve and if it goes away then that's it.
i believe that tapping noise is coming from a lack of oil pressure i rebuild my motor new oil pump and timming chain kit i bet it will fix your problem. or take it to the dealer and pay with your arm lol your timming is bad .
2005 Mazda Mazda6- 2.3L 4 Cylinder145,000
loud ticking from engine, is not continuous seems to go away under acceleration. i'm going to pull valve cover and inspect. i know the mazda pickup motor used from 88 to 93 2.2l had a hyd. lifter in end of rocker arm and they would wear out a hole in the end of lifter. i figured they learned something from those motors, but maybe not. thanks for info.
2008 Mazda Mazda6- 2.3L 4 Cylinder42,000
My engine has made a ticking noise (louder when cold) since I bought it at 42,000 miles, and I have kept the oil regularly changed. I've narrowed the problem down to this.
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