Scotty, I have written to you one other time & you help me with advice on changing my transmission…

LexusFAN

Scotty, I have written to you one other time & you help me with advice on changing my transmission fluid on my Lexus this time I have a idle issue with my 2010 Lexus gs350 . So when the car is fully heated up & if it’s in drive at a light if you let it site there at idle for a couple min you will notice the rpms start dropping lower & lower sometimes it vibrates like it wants to die but it drops low enough we’re u can feel the change. I have cleaned the throttle body & mass air flow sensor spark plugs have been replaced I’m using 91 octane. Please help I don’t know what else to do problem is still there please please help I feel like I’m chasing a ghost my mechanic hooked up his fancy scan tool and ran every know test in the scan tool & it passed with flying colors. The only thing I can think is to replace the IAC or TPS they are both expensive would replacing either one help what do you suggest I watch all your videos very big fan sir! I’m a 25 years old kid who loves his Lexus I just want it to run the best it can ! It’s. 2010 Lexus gs350 with 132000 miles please someone help this engine should not idle rough like it does Lexus motors are smooth as silk I’ve tried everything I know please help!

Comments (6)
No. 1-4
LexusFAN
LexusFAN

Very happy Scotty I had the two motor mounts replaced huge huge difference like night & day very happy I will still clean the fuel injectors !

LexusFAN
LexusFAN

Very true, I guess my question is at this point was it worth it I love the car I see all your videos on Lexus v6 motors how they run for we I love that car ! Was this worth the hassle to change them the dude said one of them was really bad makes sense why it was vibrating ! Would you have replaced them is my question. Side note I’m a huge fan I live all your videos and from what I’ve seen with cars and owning different cars everything you say about all the brands you talk about are 100% from your videos I tell people to stay away from Chrysler and o her bad companies that make very bad cars to begin with!

LexusFAN
LexusFAN

Thanks I will defiantly try all three, I took it to a shop today they said the Hydraulic Motor mounts were leaking and just shot to hell.... they said this defiantly could cause the vibration when it heats up to operating temperature it starts to have a roughly idle it shakes they said that will do the motor being basically loose . I told them go ahead and replace them very expensive job, but I’ll keep the car till the wheels fall off most likely I love there v6 . In your 52 years of experience hopefully there not trying to take all my money hopefully it’s valid that I’m replacing these Scotty haha thanks for your help! It sounds about right to me though that they use these hydraulic motor mounts when they go bad you start getting that vibration . Hopefully that’s the case!

Scotty Kilmer
Scotty Kilmer

Editor

I would replace the maf , myself. and also pressure clean the fuel injectors and search for vacuum leaks.