Toyota Yaris 1.0 Idle Engine Clatter

[kman1]

Mine is on an 02 with 30k. Had to use it in an emergency tonight on 190 mile drive. Pretty much no stop motorway and B roads. Didn't drive above 75mph. Arrived at desitination and noticed when the motor settled to a tickover there was a horrible clatter, similar to my old tappety mx-6. Fine when off idle but noise comes back on idle. Too dark to see anything now but I didn't notive anything untoward during the journey it was driving very nicely. Any ideas? I hope I'm not going to be stranded!

[kman1]

I've looked at it this morning and have isolated the noise to a valve on the air box, i think it's a purge valve, when I disconnect it the engine is nice and quiet. Anybody experienced this issue? I'm thinking of just changin the valve.

[S.Kayani]

mine has a rattle when ideling, think its the timing chain?

[kman1]

mine has a rattle when ideling, think its the timing chain?

worth checking the purge valve. Mine stops rattling as soon as the connector is pulled off the valve. Must be a common fault.

[yarisowner]

I've looked at it this morning and have isolated the noise to a valve on the air box, i think it's a purge valve, when I disconnect it the engine is nice and quiet. Anybody experienced this issue? I'm thinking of just changin the valve.

Have you managed to change the valve - I think I have the same problem, can you buy the valves