Hi,
I'm trying to trace a squealing or screeching noise on a '97 Fiat Punto 75 (1.2 engine). I thought it was the drive belt slipping but a squirt of WD40 on the belt had no effect at all. I now suspect it is either the alternator or the water pump but since they are both driven by the same belt its not possible to stop one without stopping the other. The only other clue I have is that the noise usually goes away when the engine is hot.
If it is the water pump do these lubicants you can add to the water really work? Even if they work does the effect last?
Thanks for any info.
John Smith.