High Pitch Whining Noise

[hwa0725]

Hi guys,

I have this whining noise coming from my engine (right side close to the throttle body, not the belt side) and the noise sort of disappears/reduces in volume when I press the gas pedal down by 10-15%, but it is the greatest at idling. The car's rpm also bounces up and down on idle. This happened to me after I took out the inlet manifold, throttle body and cam position sensor for cleaning. Has anyone experienced this before? What could be the problem? Was told by a guy passing the car while walking his dog that it is something to do with the high-pressure fuel pump. Does Clio 197 have a high-pressure fuel pump? I don't seem to find the part number.

PS: I also have a P0010 fault code stored with check emission and check injection on the dashboard.

Saw the other thread (https://clio197.net/threads/whining-whistling-noise.54418/) saying could be a faulty pcv valve, I did a simple diagnosis by taking out the dipstick but the whining didn't stop.

Many thanks,
Heng

 

[turkie172]

sounds electrical like it is the throttle body.

 

[hwa0725]

sounds electrical like it is the throttle body.

Alright, I would have thought so too cause the noise stopped after I pulled out the cable into the throttle body while the car is running, and of course I got very bad misfire (not sure if this was a good idea).

Despite the noise, the car still drives fine and it actually got rid of the flat spot I previously had in the first 5% of stroke.

 

[RSRowe]

Heng did you actually try cleaning the PCV out?
It’s free and easy to do.

 

[hwa0725]

Heng did you actually try cleaning the PCV out?
It’s free and easy to do.

No actually, just saw it on the other thread there, might give it a try this weekend and see where that goes, cheers!

 

[turkie172]

Is the noise there when the ignition is turned on and do you have one of those throttle pedal profile boxes

 

[hwa0725]

Is the noise there when the ignition is turned on and do you have one of those throttle pedal profile boxes

No dont think I have one of those throttle pedal boxes fitted, the noise only comes on when the car is running, nothing when ignition is turned on.