182 Rattle 3k RPM +

[Amos91]

Hi guys,

I have been reading up on this rattle but found various bits of information. Although non conclusive in my particular instance.

Currently, there is an audible metallic rattle coming in around 3krpm up to the redline. As you can imagine this is quite annoying.

However, one important thing I have noticed is that if I rev it stationary, or moving on the clutch, it does not rattle. Only rattles with gear engaged.

Bits I have changed for other reasons but are sometimes related:

New Scorpion exhaust system
New genuine cat bolts (Although didn't change the gasket).

Hope someone can shed some more definite light on this. I am struggling to find time to take it down the garage atm.

Cheers,
Amos

 

[Browny]

Make sure one of your brackets haven't come lose underneath, i had that issue

 

[Amos91]

Do you mean the heatshields? I think they are all ok.

 

[Browny]

Nah, the exhaust brackets under the car. The one dead centre of the cars the one that was lose for me. Worth a look when the engine is running to see if its giving it the old shaky jake

 

[Amos91]

Think I've stumbled across the problem:

I take it its the ECU bracket that is causing the rattle?


What's the best solution and from where?

 

[Addicted]

Mine does the same thing, going to give it a good going over on the weekend as it's pissing me right off now, I think it's heat shield but will also check the center hangar.

 

[PP200t]

Check the sway bar between the alternator and the block. I have no bolt in there and it rattles at 3k (although not at the minute as I tightened the other end up but it's starting again!!)

 

[BurnyC]

When I had this, it turned out to be one of the joins on the catalytic converter; it can be either the one from the cat to the rest of the system, or the manifold to the cat. Had the exact same symptoms as you, only did it in gear from about 3k rpm onwards. Solved when I got both joins done with the proper cat fitting kits from Renault.

 

[Amos91]

Can you guys not see the images I uploaded?

 

[PP200t]

Yeah but that's not what my rattle is/was (and my ecu bracket is in the same state) get a penny or similar in there and tighten it up. #pikeyfix

 

[msa197]

YOu got a CAT some time these get a 3k rattle as they fall apart inside.

 

[BurnyC]

Can you guys not see the images I uploaded?

Yes mate, but that wasn't what caused my rattle, and not sure it'd cause yours either. Either way, should probably get it fixed.

 

[olihodgson]

I get a rattle at 3k that disappears almost straight away, either above or below 3k. Wonder if it's any of the above suggestions, will check tomorrow!

 

[Amos91]

Cheers. will penny washer up the ECU tomorrow and go from there. If it persists I'll look into some other suggestions.

 

[wrc172]

Ready everyone? Word society!

R E N A U L T

Rattles Everytime Never Awesome Under Light Throttle

haha that cane straight to me....


i'll get me coat...

 

[olihodgson]

More like, in this instance:

Regularly
Emits
Noises
And
Unwanted
Light
Trembling!!

 

[The Fatty]

lol at other hi-jacking your thread. My ECU is the same as yours and it dosnt casue a rattle. Other things that did casue rattle on mine was the engine cover and also a
loose fuel rail gard. Best thing to do is get someone to rev the eingine for you with the bonnet up, so you can pinpoint the rattle.

 

[LiamR172]

Is it a knockong banging noise or just a light rattle? Maybe worth checking your engine mounts!

More than likely the cat to manifold joint though, one of the spring bolts is probably a bit lose?

 

[Amos91]

Is it a knockong banging noise or just a light rattle? Maybe worth checking your engine mounts!

More than likely the cat to manifold joint though, one of the spring bolts is probably a bit lose?

It's a metallic 'light' rattle that builds with the revs.

I changed the Cat bolts with genuine Renault ones about 3 weeks ago which didn't fix it. However I didn't change the gasket because of time restraints, so maybe the current gasket is too thin and creating some play in the new bolts.

I've just fixed the ECU bracket so will see if thats solved it on the way home tonight. Not optimistic though.

 

[LiamR172]

Maybe just the gasket then :s didnt you get a gasket with the bolts when yky bought them???

 

[PJ172]

I need to change my cat bolts too. How much were they from Renault, and how easy is it to replace the lot + gasket?

 

[LiamR172]

Thwy werent very much at all. Less than £20 iirc. I put mine to a garage to get done cause its pretty awkward on the 172

 

[PP200t]

It's a metallic 'light' rattle that builds with the revs.

I changed the Cat bolts with genuine Renault ones about 3 weeks ago which didn't fix it. However I didn't change the gasket because of time restraints, so maybe the current gasket is too thin and creating some play in the new bolts.

I've just fixed the ECU bracket so will see if thats solved it on the way home tonight. Not optimistic though.

Have you checked the bar between the alternator and the block? That is worth a try, it's the cause of my rattle and a few other rattles recently.

 

[dward]

My ECU bracket is exactly the same and doesn't cause a noise like this. Anyone got a proper fix for this? Or is it a case of replacing?