Noise While Accelerating

**totalB5** · 01-07-2009 12:40 AM

Hey everyone,

Got a little problem that has been going on for a while now.

Everytime I put my foot on the gas pedal, I always hear some kind of noise possibly from the front suspension or engine (not too sure where it's coming from but I narrowed it down to those two).
The noise also gets louder as the RPM gets higher, but once I release the gas pedal, the noise suddenly stops.

Could it be the front axles going bad?

Thank you in advance for any tips and info I could get.

**Spykce** · 01-07-2009 06:54 AM

What kind of sound? Is your car an automatic or manual? 1.8 or V6?

**97a41.8t** · 01-18-2009 04:02 PM

Valve tap? Low Oil to lifters? I have the same noise, its just on acceleration too.

**luchoA4** · 01-19-2009 12:25 PM

Hey there!
I have the same noise at 1st. And 2nd. And when I shift 3rd. The noise is gone is the exact same thing that happens to you. I just did some work on it (well not me actually) replaced: water pump, timming belt, (not that it matters but the important things I replaced both front axles and the 3 motor mounts so I thought I was done with the noise, but guess what, is still there, so 4 sure is not the axles I have to take it to the shop again this week so if I find what is it I let u know or if u do plz let me know

**390wheel** · 01-19-2009 08:52 PM

is it diesel engine like noise??

**luchoA4** · 01-22-2009 02:59 AM

u know, is more like if something was loose over there, but im pretty sure there's not, cuz my mechanic did a lot of work on it, and the noise was there b4 he got his hands on the car, and it was there after, and he changed, axles, timing belt, rotors... so idk

**mwebb** · 01-25-2009 06:53 AM

im having the same issue but only in 1st gear. GOTTA love when ur gas car sounds like a diesel

**ZeRo_R17** · 02-13-2009 07:30 PM

dang i have the same problem...i think...does it sound like a knocking noise( clack clack clack clack) that increases as you accelerate and when you stop it quiets down but still there its like towards the back of the block??? one of my buddies say that it could be rod knock but im not to sure...but i went to you tube and typed in rod knock and heard some videos and it came out just like we hear...clack clack clack...lol...its just a suggestion

**totalB5** · 02-14-2009 12:38 AM

I think my problem comes from the axles. Haven't replaced them but I narrowed it down. I'll update once I replace those axles.

ZeRo_R17 are you talking about this kind of sound: http://www.youtube.com/watch?v=x9LJP1mw0es
Because that sound is happening during idle and when it comes to my case, the sound is there only when the car is in motion.

**Jibberific** · 02-14-2009 01:11 AM

cam chain tensioner maybe?

**spyder101** · 02-14-2009 09:15 AM

I have the same noise as well. I put a stethoscope up to the turbo and that was where the rattle was the loudest. I have a new turbo laying around so, I'm going to install it anyways just because the car has 142k miles on it. While I'm there I'm also going to make sure that the exhaust manifold bolts are tight beacuse, they will start to loosen up at the back section as well. I'll let you guys know how it turns out.

**spyder101** · 02-18-2009 06:52 PM

Alright, I took the turbo out and found that the wastegate flap was loose, which created the ratlle. Replaced the turbo and no more noise.

**down_n_dapper** · 08-06-2013 12:08 AM

MAAASIVE BUMP

anyone find the issue? mine seems to make a rattle noise under acceleration only in 1st and second, would love to know what the issue is!

**disturbed_audi** · 08-06-2013 06:24 PM

Originally Posted by ZeRo_R17

dang i have the same problem...i think...does it sound like a knocking noise( clack clack clack clack) that increases as you accelerate and when you stop it quiets down but still there its like towards the back of the block??? one of my buddies say that it could be rod knock but im not to sure...but i went to you tube and typed in rod knock and heard some videos and it came out just like we hear...clack clack clack...lol...its just a suggestion

oil pick up tube is clogged I done a ton of searching about this late last year. the 1.8t are extremely prone to sludging up clogging your pick up tube.. you either need to change or clean your oil pick up drop subframe oil pan and clean/change ..

**AnotherMonday** · 08-06-2013 11:23 PM

Forgive my noobiness, but does the 2.8 have a pick up tube? Similar sounds here...

**Believer** · 08-07-2013 07:46 AM

Originally Posted by AnotherMonday

Forgive my noobiness, but does the 2.8 have a pick up tube? Similar sounds here...

I'm fairly certain every car will have some variation of a pick up tube. The pickup tube is where oil from your oil pan is pulled into the oiling system.

**disturbed_audi** · 08-07-2013 03:38 PM

Originally Posted by Believer

I'm fairly certain every car will have some variation of a pick up tube. The pickup tube is where oil from your oil pan is pulled into the oiling system.

yeah i'm with believer I don't have a 2.8 but you have to have some sort of pick up tube if i'm not mistaken I believe you have two. if you have a chain on metal sound at low and high oil pressures its one of two things pick up screen slugged or your cam chain tensioner and/or chain is on its way out. and I am 100% certain that 2.8's have two cam chain tensioners and chains.
easiest way to tell if its the pickup tube is to hook a oil pressure gauge up and check your oil pressure.

EDIT: found a general idea of what pressure you should be running compliments of walky_talky

Generally, the 1.8T's top end will start getting noisier once the oil pressure gets below 20psi or so.

Just checked my oil pressure after my drive home to be sure:
Idle: 26 psi
2k: 55 psi
3k: 70 psi
4k: 80 psi
5k: 95 psi