Is this a normal sound for a YD25? - Please help!

[Bazz]

good luck mate keep us posted

 

[spitfire9au]

My D40 makes exactly this sound. I'm suspecting belts or idler pulley. Haven't had chance to try a fix yet, can't get the pulley nut loose so radiator may have to come out. That's ok because it's up for its 80k service so new coolant is due.

Jeff.

 

[smithbro]

Does a loose belt make a whining noise? Mine has started to make some noise, checked the 2 alternator belts and they seem a bit loose compared to what I'm used to

 

[Old.Tony]

Belts can, especially if they're not as flexible as they once were. Before replacing them, try some dri-lube (some people use soap). It should provide enough lubrication to prove whether it's the belt or something else.

Take a look at the fan too. There have been a couple of reports of cracking showing around the base of the blades which will also create noise.

 

[smithbro]

Belts can, especially if they're not as flexible as they once were. Before replacing them, try some dri-lube (some people use soap). It should provide enough lubrication to prove whether it's the belt or something else.

Take a look at the fan too. There have been a couple of reports of cracking showing around the base of the blades which will also create noise.

Thanks mate. Seems so strange that a >30,000km truck would have noisy belts. I just changed the belts on my other car, admittedly not a Navara, at 110,000km and they were making 0 noise. Will try some dri-lube over the weekend.