Squeaky belt keeps annoying...

[demq]

Hi Guys,
I have a little annoying problem - a squeaky belt. Whenever I spray some belt dressing on it,
the noise stops instantly, but after a minute or so it comes back.... I don't know what else I can do to get rid of that problem.... It's the belt which goes from the pulley behind the fan to right (towards the air intake).
Any suggestions?

P.S. The car is 87 325 if that fact has any importance....

 

[Ben]

you could tighten the belt..................

 

[slato1]

If the belt is old and dry rot, it does not grip the pully as well and slips and making the squeeking noise. If not an old belt refer to Ben.

 

[demq]

Thanks guys
I will try to tighten up the belt, cause it doesn't seem to be worn out( it was changed a year and half ago)...