Engine knock on startup

iZZY · **January 10, 2011, 06:09:15**

My 2.0 manual cw has a slight engine knock for a second or less when I start the car when it's warm. Strange. Tried premium petrol to see if that was the issue but problem persisted. Anyone else had something similar? A trip back to the dealer might be in order.

Dazzler · **Reply #1: January 10, 2011, 07:43:12**

Hi izzy..

I'm guessing you are still running on the original oil seeing as you have only had your car about 2 months.. See what the dealer says but I would be tempted to do an interim oil change with some really good oil (something fully synthetic 5W-30 or 5W-40) and see if that makes a difference ...

Shambles · **Reply #2: January 10, 2011, 07:58:00**

Hi iZZY

I'd certainly go back to the dealer; an engine knocking sound is not something to be ignored. How long has this been happening?

(PS Dazz I think he's had the i30 longer than 2 months

)

2i30s · **Reply #3: January 10, 2011, 08:05:10**

his first post was on 29/9/10,says i picked up my new car a few weeks ago.

but it shouldn't knock.

Shambles · **Reply #4: January 10, 2011, 08:23:12**

Quote from: 2i30s on January 10, 2011, 08:05:10

his first post was on 29/9/10

No it wasn't

Dazzler · **Reply #5: January 10, 2011, 08:30:04**

His first post was 29/10/09, I .. was thinking we were in 2010

2i30s · **Reply #6: January 10, 2011, 08:30:18**

Quote from: Shambles on January 10, 2011, 08:23:12

Quote from: 2i30s on January 10, 2011, 08:05:10
his first post was on 29/9/10

No it wasn't

29/10/09. i arsed it about.

2i30s · **Reply #7: January 10, 2011, 08:32:22**

but surely hes had an oil change or two in that time.

paul · **Reply #8: January 10, 2011, 08:33:07**

i had knocking on start up----- was the wife trying to get in

2i30s · **Reply #9: January 10, 2011, 08:37:58**

Quote from: paul on January 10, 2011, 08:33:07

i had knocking on start up----- was the wife trying to get in

Lorian · **Reply #10: January 10, 2011, 10:18:48**

Based on the very small description It could be anything. About the only thing we can rule out is a cat caught in timing belt (they make a different noise). Trip to the dealer definitley in order.

**Reply #11: January 10, 2011, 14:07:56**

Quote from: iZZY on January 10, 2011, 06:09:15

My 2.0 manual cw has a slight engine knock for a second or less when I start the car when it's warm. Strange. Tried premium petrol to see if that was the issue but problem persisted. Anyone else had something similar? A trip back to the dealer might be in order.

A "knock" at start would perhaps suggest a lack of oil flow... but when warm? No, unless your oil is water-thin when warm.
I think something else... let's know what your dealer says. Perhaps a cat... although as Lorian says, slightly different noise.

eye30 · **Reply #12: January 10, 2011, 17:41:19**

Is the oil at correct level?

Dazzler · **Reply #13: January 10, 2011, 19:51:41**

Quote from: eye30 on January 10, 2011, 17:41:19

Is the oil at correct level?

Good question Lester.. Why didn't I say that

eye30 · **Reply #14: January 10, 2011, 20:04:25**

Quote from: Dazzler on January 10, 2011, 19:51:41

Quote from: eye30 on January 10, 2011, 17:41:19
Is the oil at correct level?

Good question Lester.. Why didn't I say that

rustynutz · **Reply #15: January 11, 2011, 03:46:25**

Quote from: paul on January 10, 2011, 08:33:07

i had knocking on start up----- was the wife trying to get in

Did the knocking go away?

paul · **Reply #16: January 11, 2011, 08:08:51**

No Rusty, it got louder then turned into a whining for about an hour,

Dazzler · **Reply #17: January 12, 2011, 10:18:17**

Quote from: paul on January 11, 2011, 08:08:51

No Rusty, it got louder then turned into a whining for about an hour,

That is a common problem .. with no known fix

paul · **Reply #18: January 13, 2011, 08:03:37**

Quote from: Dazzler on January 12, 2011, 10:18:17

[quote ]

That is a common problem .. with no known fix

There is the trade-in option for a new model, but i find after they are run-in they all perform the same,
did tell her if the noise didn't stop i would post a picture of the scratch she put in my new i30.
if it had been me that did it, i wouldn't hear the last of it! :-\

Dazzler · **Reply #19: January 13, 2011, 08:38:45**

They they all end up doing the whining when they get a bit of mileage on them (and a wedding ring on their finger..)

Surferdude · **Reply #20: January 13, 2011, 09:35:48**

Hmmm?

A bit off topic guys.

But do we know if the engine knock has been resolved?

Dazzler · **Reply #21: January 13, 2011, 09:41:14**

Quote from: surferdude on January 13, 2011, 09:35:48

But do we know if the engine knock has been resolved?

Hopefully we will get an update soon...

rustynutz · **Reply #22: January 13, 2011, 09:43:14**

Quote from: Dazzler on January 13, 2011, 08:38:45

They they all end up doing the whining when they get a bit of mileage on them (and a wedding ring on their finger..)

Don't you mean the "suffer-ring"?

paul · **Reply #23: January 13, 2011, 11:15:42**

nice one Rusty

And yes Mr Dazzler, sir, mate,
I bet that's not your real name

Myowni30 · **Reply #24: January 13, 2011, 15:55:06**

That sounds to me like a typical sound you can get if the exhaust is out of alignment.

Surferdude · **Reply #25: January 13, 2011, 20:44:14**

Quote from: Myowni30 on January 13, 2011, 15:55:06

That sounds to me like a typical sound you can get if the exhaust is out of alignment.

Well done. Wen't back and re-read the first post. It could well be exactly that.