Hi.

I have recently noticed that my Azera makes a "knocking" sound right after starting the engine.
It just about a dozen of fast short knocks one after another and it is gone after 2 seconds (like a diesel engine started on low temp. ;-))
It appears more often when the engine is rather cold.

Thanx for any advice.

You could have the V6 timing chain tensioner problem. It's a free fix in the US, don't know about Poland.

Thanx a lot.

I will check now if this is just because my Azera is driven rarely or it is tensioners problem, which I hope not because Hyundai will not fix it for free in Poland ;-)))

It's a common problem. Sorry to hear you have no warranty, it's a big, difficult, and expensive fix. Notice how you check for the problem with a stethoscope.

Is this something that needs to be fixed fast and can do more damage if left like that?

From what I've read, it would probably last a good long time without replacement as it does get oil within seconds of the engine start...

I have same problem in my 2008 3.8 hyundai Azera , the car doing only 77000 km (48000 mile)

engine knocking -- cold start

listen to the sound in my azera

http://www.youtube.com/watch?v=YIgWJOYmSpA

That sounds horrible.

David <><

I don't really know how long it will last like that. I don't think it's a real good idea to leave it like that, since if it fails completely and the timing chain breaks, etc, it will ruin your engine.

Well, my engine makes a different sound and is completly gone after about 2 seconds.

That's right, the tensioner sound is supposed to go away very quickly and not come back until it cools off. The other guys sound is different.

so, do have any idea about my problem ???

last week i went to the local dealer, the mechanic told me the sound comes from the pistons , and you have to rebuilt the engine,
(the car is out of the warranty ) , and it will cost you about 1600$ ( the price only for the parts)

and i told him , i did not buy a new car to rebuilt it ...........

This post has been edited by jeep2222: Oct 11 2009, 07:25 PM

No, I don't know what it is. But it doesn't sound like the tensioner thing. Tensioner thing is supposed to go away within a few seconds.

Check out your other videos and maybe you'll see why your car is running like garbage.

I baby my cars.

This post has been edited by TheWidowsSon: Oct 11 2009, 08:55 PM

Ha, I saw the original post before you edited it. I figured it was a "car abuse" problem, but I didn't want to offend anyone.

Yeah, don't beat the snot outta your car dude. It's bad.

The presentation in the video does sound like "piston slap."

On the i'net:

Piston slap is nothing new to piston driven internal combustion engines and compressors. It is the secondary (sideways or perpendicular) movement of a piston against the side of a cylinder bore where the primary movement of a piston is intended to be parallel (up and down) to the cylinder bore. All piston driven internal combustion engines and compressors have a certain amount of piston slap.


Excessive piston slap occurs when the clearance between the piston and the cylinder bore is too great. The piston to cylinder bore clearance becomes too great either through wear, mismatched pistons and cylinder bores at manufacturing or, a combination of both. The audible noise associated with excessive piston slap is due to the perpendicular impact of the piston against the wall of the cylinder bore. Audible piston slap is typically loudest when the engine is first started up. The pistons then expand with heat reducing the piston to cylinder bore clearance thus, reducing the perpendicular impact of the piston against the cylinder wall and its resulting noise.

i know a lot of azera (3.3) owners they did not face any problem at all.........

also i know the (3.3) lass power than (3.8) but much better quality... At Least That's What dealer Said to me....

The only reason makes me go for (3.8) :

is the price between them is about 266 $

(19466$) for 3.8 and (19200$) for 3.3 ----all of them GLS model

also the gas price is very cheap in k.s.a

* regular -91 octane (0.45 $) for 1 gallon
* Premium- 95 octan (0.6 $ ) for 1 gallon

also the cheapest one is diesel (0.252 $) for 1 gallon

i can fill up the whole tank about 9$ (i am using 91)

thank you
that mean i have to rebuilt the engine or what ???

It probably means you need the cylinder bored out and oversized pistons put in. In short, you'd probably be better off finding a replacement used motor. But being you live in KSA, that's probably not an option.

i did that for 20-30 times of the last 2 years---not every day
and I Think it is ok. i did abuse my 2000 jeep cherokee for 8 years when i was teen age and nothing like that happen at all........

now i am 25 years old , and i know how to use the car very well...........

This post has been edited by jeep2222: Oct 11 2009, 10:45 PM