Clio sport squeak

[Kieron f]

Hi I have clio 172 bought it running a misfire turns out firing order was wrong so I got if firing fine but now I have a high pitch squeak sounds like it's coming from throttle today?

I've read it maybe a crack in the cat making it sound like a steam kettle

I did strip alot bk checking all sensors and I moved the butterfly slightly but now I when I start it it sits at 2000 rpm does settle but the noise it still apparent its between 1000 and 3000rpm does anybody have any clue I think maybe it will need calibrating the throttle body but cant explain the noise and help will be great

 

[R3k1355]

Might be best to get a video up

 

[Kieron f]

Ok I will it's not so loud now sounds like a interference sort of turbo noise

 

[STEVE.M]

Ok I will it's not so loud now sounds like a interference sort of turbo noise

On the assumption that your 172 is a Ph2 with a fly by wire electronic throttle body, it is quite normal for the throttle body to make a constant high pitched zing

when the ignition is switched on, with or without the engine running.

 

[Kieron f]

Oh really yes its 03 phase 2 so you think this is normal?

 

[STEVE.M]

Oh really yes its 03 phase 2 so you think this is normal?

If it is what I previously described, I know it is.

 

[Kieron f]

Normal?

 

[davo172]

Hairline crack in the cat makes a whistle on acceleration mine did it for years ?

 

[Kieron f]

Hairline crack in the cat makes a whistle on acceleration mine did it for years ?

I did think this but the noise seems nowhere near the cat unless the manifold has hairline crack not sure how strong they are?