nicob

Hi Thsnks for reply - i dont think its cam as that tends to be until oil circulates in the hydraulic lifters and the noise is only under load. you can rev engine no issue. sometimes when really cold the rattle is present but mostly its only under load i.e. when pulling away...

does anyone know the email address of the uk/european Lexus directors?

Hi Thanks for taking the time to reply - looks interesting - might be the issue...

i have an IS 250 that clearly has an engine rattle at low speed pull away around 15 to 20 mph. The rattle abates or muffles when engine is warm although can still be heard especially if slow pace up an incline. The colder the engine the louder the noise. Does anyone know what this is?