Running Rough!

[lexusfan35]

Hello everyone, I'm new to the site but have used comments several times to great effect and have been very impressed!!

Just wanted a bit of advice from anyone?

I have a Lexus RX300 54 plate which Ive had for about 5 years and love it.

When idling it seems to be knocking/chugging rather than smooth-not sure whether this a timing problem (?), if so, what parts/labour do I need? I have looked after it and have recently changed air filter, oil filter and had power steering pipe changed due to power steering leak (the nasty whirring noise and lack of steering power -as I have seen on several other forum posts!), not sure these things are relevant but am not an expert - just a keen amateur!!!

Any suggestions would be greatly appreciated......

[dgman]

try some injector cleaner or bg44k first before going to the mechanic.it's worth looking at the air filter too.