weird noise from motor

**fandtm666** · 23-12-18, 02:34 PM

i have a 2005 holden combo that 2 days ago started making like a grinding whining noise

so i did the usual inspections

1: car has done 239,000 checked service manual timing belt at 90k intervals
2: checked main belt and nothing found
3: checked pully's to see if any were wobolly but all good
4: motor not overheating or heating up quickly so water pump seems ok

mechanic is away for the holidays so thought i would ask here if anyone has a thought
and if its minor i could just repair -replace etc.

**hinekadon** · 23-12-18, 02:55 PM

sounds like a/c pulley idler bearing to me

**Uncle Fester** · 23-12-18, 03:07 PM

Bearing issue somewhere makes sense. Dried out, no grease would still pass the 'wobble test'.

**lsemmens** · 23-12-18, 11:09 PM

Use a long screwdriver as a "stethescope" and have a listen to the bearings around the pulleys All you need do is place the screwdriver on a stationary part adjacent the suspect bearing and the gently rest the screwdriver against you ear. If it's the dud, you'll soon hear it.

Edit; Should have said, with the engine running, so be careful!!!