Idle issue

[Bob Lexus]

Hi, I am new to this forum, hoping to get some advises from some of you, my 2010 IS 250 is running on low idle 600 RPM when stationery on D mode, sometime drop to 500, it was on around 650-700 when I got the car, is it carbon build up the cause of it or the type of fuel.

[ilv1004s]

due to the age of the cars now

carbon clean is very advisable

[Bob Lexus]

thanks for the info, do you mean pulling out the manifold to clean it

 

[Bob Lexus]

I took the car to the mechanic, they advise me, I dont need carbon clean up because it is a petrol engine, only if it is diesel, any advise from here, I also spoke to few other mechanic,  everyone seem to give the same advise, not carbon build up related 

[Bob Lexus]

my key battery is low, do I need to take it to a Lexus dealer to change of battery??

[Bob Lexus]

21 hours ago, rakddon said:

My advise is you need a new mechanic or someone that knows what their taking about.

Anyways as ilv1004s said do a carbon clean as 250s are known to need it.

 

No, you can do it yourself.

 

Great! thanks, I changed the battery myself with no issue, thanks again

 

[Bob Lexus]

I will take it to another mechanic for carbon clean up, many thanks for the advise

[bazzle]

Where are you Bob?

Ask on here for help to find one who can do it. Sounds like your mechanic is not very good sadly.

Its an issue on 'many' later model petrol vehicles with direct injection. VW's, Audi's, Renault, Lexus, Toyota etc

[Bob Lexus]

Every mechanic trade are shifty, they only want to make money on bigger job, so they come up with the reason of not knowing it, this guy has 2 workshop Raven hall (Victoria), 10-15 cars in the workshop, he is in the trade for more 15 years, he should know better. anyway, something to share to everyone out there. 

I live in Cairnlea, I can go to surrounding suburb if it is not too far, please let me know how much it costs? and their contact number please

thanks again for the helps here 

[bazzle]

No affiliation or any idea but one I found in a simple google search.

https://www.facebook.com/pg/Engine-Carbon-Clean-Victoria-949069535203325/reviews/

[Bob Lexus]

Much appreciated, thanks Bazzle

[Bob Lexus]

Cant get thru with this number, I will google it again to see other availability

[ilv1004s]

also you can look up on youtube for the use of subaru upper engine cleaner

night and day difference once its done

[Bob Lexus]

thanks, I will check it out

[Bob Lexus]

I recently phoned up a Lexus dealer to check the service history, I was advised, the car has a carbon clean up at 97560 kms, in July 18, the car now traveled 104688. now, I am relieve, it is not carbon build up.I will clean the throttle body again to see of any change after.