Bob Lexus Posted July 23, 2019 Share Posted July 23, 2019 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. Quote Link to comment Share on other sites More sharing options...
ilv1004s Posted July 23, 2019 Share Posted July 23, 2019 due to the age of the cars now carbon clean is very advisable Quote Link to comment Share on other sites More sharing options...
Bob Lexus Posted July 24, 2019 Author Share Posted July 24, 2019 thanks for the info, do you mean pulling out the manifold to clean it Quote Link to comment Share on other sites More sharing options...
Bob Lexus Posted August 5, 2019 Author Share Posted August 5, 2019 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 Quote Link to comment Share on other sites More sharing options...
Bob Lexus Posted August 5, 2019 Author Share Posted August 5, 2019 my key battery is low, do I need to take it to a Lexus dealer to change of battery?? Quote Link to comment Share on other sites More sharing options...
Bob Lexus Posted August 6, 2019 Author Share Posted August 6, 2019 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 Quote Link to comment Share on other sites More sharing options...
Bob Lexus Posted August 6, 2019 Author Share Posted August 6, 2019 I will take it to another mechanic for carbon clean up, many thanks for the advise Quote Link to comment Share on other sites More sharing options...
bazzle Posted August 6, 2019 Share Posted August 6, 2019 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 Quote Link to comment Share on other sites More sharing options...
Bob Lexus Posted August 6, 2019 Author Share Posted August 6, 2019 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 Quote Link to comment Share on other sites More sharing options...
bazzle Posted August 7, 2019 Share Posted August 7, 2019 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/ Quote Link to comment Share on other sites More sharing options...
Bob Lexus Posted August 7, 2019 Author Share Posted August 7, 2019 Much appreciated, thanks Bazzle Quote Link to comment Share on other sites More sharing options...
Bob Lexus Posted August 8, 2019 Author Share Posted August 8, 2019 Cant get thru with this number, I will google it again to see other availability Quote Link to comment Share on other sites More sharing options...
ilv1004s Posted August 16, 2019 Share Posted August 16, 2019 also you can look up on youtube for the use of subaru upper engine cleaner night and day difference once its done Quote Link to comment Share on other sites More sharing options...
Bob Lexus Posted August 20, 2019 Author Share Posted August 20, 2019 thanks, I will check it out Quote Link to comment Share on other sites More sharing options...
Bob Lexus Posted August 20, 2019 Author Share Posted August 20, 2019 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. Quote Link to comment Share on other sites More sharing options...
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