Caddy2GS

I should have just did a regular oil. Since i luv my baby, i went ahead and had power steering and emisson vac clean. Now when i start the car it run ok, But once am driving and step on the brake. The car vibrates.. NOT THE RPM but just the car itself. The engine seems to be running fine. Bcos once i accelerate you don't feel the vibrating.


This will continue after 30mins of driving and then it stop. Help! Ideas!

shvc1991

Check your bushings. It could also be a sticky caliper.

The stock bushings on these cars are rubber so it provides a floaty and smooth ride... Since it's rubber, they wear out over time due to natural elements.

Replace them with Daizen bushings if you can. The first one I would check is the caster arm bushing (lower control arm bushing). Members have stated at it's extremely difficult to get the bushings out, but DruMnBaSS (a member) has a great DIY thread. I'll link you to it.

Daizen DIY

These are supposed to be the best bushings you can get and they're made of polyurethane so in theory you'll never have to replace them again.

I'm not sure why it would suddenly stop after driving for awhile, but those are the only ideas I have.

shvc1991

Another thing you should try is resetting the ECU. Pull the battery cables for like 30 minutes and it should reset everything back to stock.

Caddy2GS

Thanks i will definitely try all of the above.

Caddy2GS

This was actually my problem after doing $80 diagnostic on the car.. P1349

https://www.clublexus.com/forums/gs-...ve-filter.html

Caddy2GS

Here is another followup that anyone might want to do.. I am yet to try this since it's dark have to wait till tomorrow.

What a throttle body? While @ the technician store he had ask me to go look for throttle body cleaner. I was like WTF is he talking about

https://www.clublexus.com/forums/gs-...ttle-body.html

tmf2004

iTrader: (15)

MAF and TB cleaning might help as well.. Check the oil to and make sure you have the recommended amount..

Caddy2GS

What's a MAF?

shvc1991

Mass Air Flow sensor. It's a sensor that tells the car how much air is going into the engine which in turn helps regulate fuel/air mixture. It is located on the intake piping and is held in by 2 philips screws IIRC.

burma

last time i got a blocked vvti oil control valve my error codes came on the dash. the dealer fixed it and this was just when i bought it, i've been using mobil 1 ever since so using good quality oils should help.

I also did a DIY power steering fluid change, the one with the hobby shop bottle that sucks up the oil. I did the incremental change, so about 4-5 changes / week and now my fluid is pinkish(used about 2L over the period).
I did notice a little more vibration after doing the oil change, but it might be because the power steering is now smooth, you notice the other vibrations??

Check your engine/transmission mounts also.

Caddy2GS

No other vibration.. Took it to the shop for another dig

And i was told i need oil control valve.. Two in total..$184. each