Tinny noise on power, 1.2 clio

[Louis]

Hi guys,
Noticed this morning on my (new to me) clio that when accelerating there is a tinny noise coming from the near side. It seemed to get louder the longer my journey was. There is no noise if i just sit at speed or accelerate slowly, but its noticeable on setting of/ 2nd. Is this something to be worried about? My engine seems to sound okay when idling, can record it tonight if i get chance.

Cheers,
Louis

 

[fairm010]

Where are you in the world mate?

 

[Louis]

I'm from Huddersfield

 

[fairm010]

Oh, no where near me then!

@dann2707 is nearby, perhaps he might take a look. Without a video or something it is hard to say.

I had a tinny noise which turned out to be a fucked cat. Get down and listen to the car near the gearstick underneath in the center.

 

[Louis]

Okay, I'm taking it home back to York next weekend so i'll get my brother to get it on the ramps to have a look and a listen. Was just worrying about belts and the like especially as i'll still have to travel places.

 

[fairm010]

Do you have a record of the last belt change?

Tbh, the belts in these go on and on and on and on and on. Mine had covered 60k miles / 12 years on its original belt before I had it done.

Record a video of both the engine bay and under the car near the gear stick and get them up here.

 

[Louis]

I don't have any evidence no, but i have a fair bit of other service history where they have spent thousands on the car in the past so i don't seem them not doing this if it would come up that it was needed? It had a gold service 700ish miles ago! I could give the PO a call and ask about the belts? I have their address and contact details. I'll be sure to record a video then, the cars only done 81,200. Cheers

 

[Louis]

Right just recorded it. Here's the video. When i pressed the gas there was a noise under the bonnet which i tried to get my camera to. Hard doing it on your own! Please let me know what this is as it's kind of worrying when i just bought the car... You can also hear a kind of "slipping" noise coming from the engine bay when blipping the throttle towards the end. Sorry for the lack of light!

Thank you,
Louis

 

[fairm010]

Yeah something definitely isn't right there. Does it only happen when revving? It's hard to tell from your video.

 

[Louis]

Yeah only when revving, nothing else. Sorry yeah it's dark! Only got back to uni when it was dark, will get a better video tomorrow. You get the gist though. The thing is, its only just happened this morning! Strange...

 

[Louis]

Its actually more of a "rasping" noise if that's best to describe it.

 

[fairm010]

Check for leaves in your caf hose?

At a loss mate, without a decent video. Perhaps someone else can shed some light.

 

[Louis]

Which one is my caf hose mate?

 

[fairm010]

Cold air feed, into your air filter.

 

[Louis]

Okay, ill go have a nosey now. It's dark and cold though which isn't fun.. I'll try get under it tomorrow to check if my exhaust is blowing or anything

 

[Louis]

Well i've had chance to record it again so here we go...

There was a strange "eggy" type smell under the bonnet but the car did barely even get to temperature so may have just been that.
I did find this under my oil cap though, but am i right in thinking its down to me making only small journeys in the clio and nothing else major? I've not lost any coolant or oil. I did notice this down the side of my engine though, so maybe a small drip of coolant from somewhere? Hoses do have rusty clamps on, worth doing a coolant change?
Anyway, let me know!

 

[fairm010]

White foamy stuff is nothing to worry about, I get it too. Its by not letting the engine get to temperature and too short journeys. Try to take the car on a good blast once a week.

Not sure on engine noise though tbh mate, as I have a different engine to you!

 

[Louis]

Well i've not gone above 40 in it in the past 200 ish miles. So that's probably why too... Lot of stop start in huddersfield! Hopefully someone else is able to help. Thanks though mate you've helped a fair bit already!

 

[Hodgins]

From the videos it sounds like a blowing exhaust, i know the little flexi section on the cats on these like to rust (like mine!)
But hard to tell

Also it looks like your thermostat maybe leaking

 

[Louis]

I'll get under it tomorrow and have a look. Would the thermostat leaking just be small then? Hence no loss in coolant? It gets upto temp okay usually.

 

[Hodgins]

You can have a look from under the bonnet at the flexi, look over the back of the engine between the coolant bottle and engine and you'll spot it, just have a feel round there see if you can feel it blowing, watch your hand as itll be hot lol

It may not be the thermostat, but my car had a small amount of coolant puddling on top of the gearbox and it lost a small amount over a week, and it turned out the thermostat housing was cracked, cheap part and relatively easy to change so i wouldnt worry

 

[Louis]

Gave it a run back to york today and im happy to say that the build up of "cream" under the oil cap has gone! Must've been all those short journeys... Got 38.7 mpg now which is better than the 23 I was getting. Had a look today and think it is the flexi which is blowing. How much of a job is this to replace and how much would it set me back? Is not getting it done going to negatively affect the car at all? I also have an MOT in a month.

 

[Hodgins]

Ahh good, i used to get concerned at mayo in the cap, but i do 350 mile a week in mine on a run so havent seen it in a while

The flexi is part of the cat (borrowed the pic below off google)

Its one olive joint clamp which will no doubt be rusted beyond use, so its best to relace, and two nuts to bolt it to the manifold flange,
Shouldnt take long at all, just will be fighting with rusty bolts and it'll prob be hard work to remove the lambda sensor

Either a second hand one, or they're around £70-80 for a new pattern part

 

[Louis]

Oh right okay, pricey then! Don't know if 'll be able to afford that for a few weeks now! I'll have a better look underneath tomorrow. Is there any negatives with running it with it blowing for a bit?

 

[Hodgins]

A second hand one can be had for sub £50 maybe cheaper in a scrappys or by keeping an eye out,

no major adverse effects really, itll just sound a little blowy, and maybe have a slight impact on mpg.

 

[Louis]

Oh okay, that's more reasonable then! Thanks for the help mate I'll get it up tomorrow and make sure it's definitely that. Just typical it goes less than 50 miles into me owning the car! Ahh well! If I was to go for a K-tec stealth exhaust would it come included with this part to resolve the issue? As I could live with it for a bit to save up and get a nicer sounding exhaust system.

 

[Hodgins]

No worries, heres one on ebay with the sensors so one less job for £45
http://www.ebay.co.uk/ulk/itm/321978311698

Im guessing the ktec one would be a cat-back system, so it would bolt to your standard cat so it wouldnt replace it