Technical Frustrating Noise

[davey_boy_t]

My '01 Punto 1.2 8v makes a high pitched whistling sound when you turn the heater on. However, the noise is only there if you have it on either setting 1 or 2. Maybe its because the noise of the fan itself drowns out the whistling, but you can't hear it on settings 3 or 4.

Its a weird noise, that you can hear slowing down when you turn the fan off altogether, and speeding up if you turn the fan on.

Its there regardless of temperature setting, and regardless of airflow setting.

Anyone know of basic things that I can check myself before putting it in for what is likely to be a costly repair job?

Ta, Dave

 

[Punto 1.6 sporting]

your lucky every punto i have had dose that and my 1.6 rattles when on speed 2!
it also dose it on the other speeds when spinning up!

Any ideas?
think the bearings may be Sh#ged on mine!
You checked to see if its eaten a leaf?

Punto Sporting With Abarth Kit & A Few Trick Bits

 

[davey_boy_t]

How would I know if it ate a leaf? Where do I need to be checking? I'm a bit of an amateur mechanically I'm afraid

 

[Punto 1.6 sporting]

look down the ducts into the passenger department! if it as makes a loud BIRRRRRRing sound then it will be in the fan its self! mine is under the glove box ! it just unscrews and should go back together how it came apart!

Punto Sporting With Abarth Kit & A Few Trick Bits

 

[Evil-Punto]

The whistling noise is just the air rushing across something at a cartain speed, try closing each vent one at a time and try redirecting the air (mine whistles on 2 but only from the slots below the windscreen)


www.puntoforum.co.uk

Evil-Punto AKA Evilution.

 

[chumhill]

I get that pain in the arse causes you to switch it off its so irritating and freeze to death in winter. If you look under the glove box you will find the fan. Tear this appart and put some WD40 on the centre of the fan. Walla this will cure your problem.

Sensible mods go far