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aznfreak
11-07-2009, 06:39 PM
I have an 1999.5 audi a4 1.8t...I just started having problems with my engine, it has only 125,000 on...timing belt was replaced around 90,000miles. When I start the car, there's a ticking noise that comes from the top of the engine. at idle or when warmed it still has the ticking noise. When I accelerate the ticking gets louder as the rpm goes up. Please help.

walky_talky20
11-07-2009, 07:01 PM
Could be low oil pressure. I'd put a gauge on it and check it out. Usual causes for head noise are the lifters and the cam chain tensioner. If the noise is from the rear of the valve cover, it is probably the tensioner. But either can be noisy due to low oil pressure.

jrock
11-07-2009, 07:02 PM
Cant remember if it is the cam chain tensioner or the oil pump but its a common thing on a4's. I would recommend searching it but mine has been doing it since I bought the car 40k miles ago and still no issues.

RockyMountainB5
11-07-2009, 07:04 PM
Could be low oil pressure. I'd put a gauge on it and check it out. Usual causes for head noise are the lifters and the cam chain tensioner. If the noise is from the rear of the valve cover, it is probably the tensioner. But either can be noisy due to low oil pressure.

I second this.
My cam chain tensioner is currently going bad, and it ticks like a mofo while the engine is on. LOUDLY. The noise is obviously coming from the rear of the engine block, right on top. Take a long screwdriver, touch it to the top-rear of the engine block, and put it to your ear. If the ticking gets worse, you need a new cam chain tensioner! gratz, $1500 repair. [=(]

erikas3
11-07-2009, 07:24 PM
Interested in this topic as well since my motor is pretty noisy. But a $1500 repair?? You can't be serious. Aren't the tensioners like 150$ on ECS?

stevejones19
11-07-2009, 07:34 PM
Mine was ticking the other day too, Checked my oil and found i was DANGEROUSLY low. For some reason my light didn't come on. But i through a 2 quarts in there and no more ticking.

RockyMountainB5
11-07-2009, 07:34 PM
Interested in this topic as well since my motor is pretty noisy. But a $1500 repair?? You can't be serious. Aren't the tensioners like 150$ on ECS?

Unfortunately not - go check out the cam tensioners on ECS's site. Or anyones site, for that matter.
The aftermarket tensioner is $450, the OEM tensioner is like $600!!!!
Plus, you SHOULD replace your valve cover gaskets, the cam chain itself, you need the cam tensioner GASKET, and the special tool to take tension off the cam chain. So if you do it yourself, the parts alone are $700 for the cheap stuff.
If you get this done at a shop (i know i cant do this repair) it costs at least $500 for the labor. [:(]

erikas3
11-07-2009, 07:49 PM
Unfortunately not - go check out the cam tensioners on ECS's site. Or anyones site, for that matter.
The aftermarket tensioner is $450, the OEM tensioner is like $600!!!!
Plus, you SHOULD replace your valve cover gaskets, the cam chain itself, you need the cam tensioner GASKET, and the special tool to take tension off the cam chain. So if you do it yourself, the parts alone are $700 for the cheap stuff.
If you get this done at a shop (i know i cant do this repair) it costs at least $500 for the labor. [:(]
You are right. Now I am really hoping this is not the problem with my car. If it is, then I'm sure as hell not fixing it [down]

walky_talky20
11-07-2009, 08:05 PM
Yes, the "non-vvt" chain tensioners for the AEB and ATW engines are about $200. The "vvt" tensioner for the AWM engine is $400+.

$200 isn't bad, but the install is a bit involved. You must removed the intake camshaft in order to change it.

aznfreak
11-07-2009, 09:04 PM
Could be low oil pressure. I'd put a gauge on it and check it out. Usual causes for head noise are the lifters and the cam chain tensioner. If the noise is from the rear of the valve cover, it is probably the tensioner. But either can be noisy due to low oil pressure.

if i have low oil pressure wouldnt my low oil pressure indicator be on

sittinherebored
11-07-2009, 09:09 PM
change your oil and i bet it will go away. if not, then its probably the above^

walky_talky20
11-07-2009, 09:28 PM
if i have low oil pressure wouldnt my low oil pressure indicator be on

Not necessarily. I believe the low oil pressure warning sounds if the pressure is below 14 psi and the revs are above 2k. The car should have around 20 psi at idle and at around 40-50 psi at 2,000 rpms. Obviously the oil pressure can be below spec without tripping the warning.

Seerlah
11-07-2009, 09:35 PM
People may not agree with my advise, but you can do an oil change and use Lucas Heavy Duty Oil Stabiliser to it. It may fix the issue. Also, what motor oil do you use?

walky_talky20
11-07-2009, 10:05 PM
Yes, other than oil pressure, too thin of motor oil can cause top end noise as well. If you are using 5w-30 or 10w-30, try using 5w-40 or 10w-40.

Seerlah
11-07-2009, 10:09 PM
Not just visocity/weight, but the quality of the motor oil. That is why I stick with 100% synthetic motor oil (Amsoil).

RockyMountainB5
11-08-2009, 08:22 AM
Yes, other than oil pressure, too thin of motor oil can cause top end noise as well. If you are using 5w-30 or 10w-30, try using 5w-40 or 10w-40.

This sounds like a good idea - but what if we live in VERY cold climates? It gets down to 0 degrees Farenheit regularly at night here, and some days it is a max of 30 - wouldnt using heavier oil be a problem for winter?

aznfreak
11-08-2009, 12:28 PM
I switched over to 10w-40 synthetic...it's still ticking...does it take time to get better or is it instant? thanks

Seerlah
11-08-2009, 12:43 PM
As I mentioned, try Lucas Heavy Duty Oil Stabiliser. What brand oil are you using?

Here is a List of Audi Approved Motor Oils (http://www.audiusa.com/etc/medialib/cms4imp/audi2/aoa/company/aoa-specific.Par.0023.File.pdf). I use an oil not on that list. Since you are in Albany, I would suggest 5w30 for the winter season and 5w40 for the summer season.

aznfreak
11-08-2009, 12:53 PM
As I mentioned, try Lucas Heavy Duty Oil Stabiliser. What brand oil are you using?

Here is a List of Audi Approved Motor Oils (http://www.audiusa.com/etc/medialib/cms4imp/audi2/aoa/company/aoa-specific.Par.0023.File.pdf). I use an oil not on that list. Since you are in Albany, I would suggest 5w30 for the winter season and 5w40 for the summer season.

castrol....how stabilizer would I use?

Seerlah
11-08-2009, 01:01 PM
It should say on the bottle. But you are supposed to use 20% of the amount of oil used. So, a little less than 1 quart and fill the rest with motor oil to the fill line. Instructions will be on the bottle.

aznfreak
11-08-2009, 06:13 PM
dammit, drove it for 20min with the stabilizer oil in it and didn't make it any quieter...

Seerlah
11-08-2009, 06:16 PM
You did do a full oil change when you added the Lucas "Heavy Duty" Oil Stabilizer, correct?

aznfreak
11-08-2009, 06:22 PM
yep...

Seerlah
11-08-2009, 07:28 PM
I would say keep it in there till the next oil change, because it really can't do anything but help your issue. I would give it maybe 50 miles or so before you cancel the Lucas Stabilizer. If the ticking is still there after some mileage, doing an engine flush can raise your oil pressure (plus clean sludge at the same time). I was planning on flushing my engine with Amsoil Engine flush when spring time comes around. If that doesn't do it, time to start replacing internal parts.