[drdoug75]

Hey everybody, I am taking the ole IS F in tomorrow as it has started to make a weird noise. I thought maybe some of you would have an idea as to what this might be????

When I take a right turn at speed you can hear a grinding/rattling noise come from the R front wheel. I was driving with my buddy the other day and I think he could actually feel it through the passenger side floorboard.

I don't hear anything when turning left or going straight out. So the car has to be turning right again at speed. If you are going slow no sound.

It is loudist if I take a sharp right turn going fast or say merging on the freeway also going right but pulling some g's. Goes away as soon as I straighten out.

Doesn't seem to effect anything but damn if it is a weird noise??

Taking it in tomorrow so I hope to get some answers. This beast only has 4400 on the clock and I don't abuse it.

Any ideas? THANKS
D

 

[trackaddict]

Sorry to hear that. It could be a worn right camber plate. Since you are taking it in, please let us know what exactly is the problem.

 

[F'n around]

Haven't had that problem or heard of anyone else having the same issue. I hope it isn't anything serious. Good lucka dn keep us up to date.

 

[UCrazyKid]

Wheel bearing.

 

[UCrazyKid]

Sometimes they just fail. If the lube is contaminated or the bearing race gets galled, etc.

 

[axtellz]

yep, sounds like a bearing- but please let us know what they find. Good luck with it.

 

[Joe Z]

Sorry, just saw this thread.. Its NOT your wheel, thank god!!!

Your exhaust needs to be slightly adjsuted..


See this thread linked below over from Club Lexus:

Rubbing issues on Joe Z PTS exhaust....

This is my post from there...

Ok... Thank You of being patient..

There will NOT be any rubbing issues by the ELSD.

The slight contact issue you are hearing is located on the front x-pipe...
You are just experiencing a slight alignment issue in that area.

What we have noticed recently, is that the spacing between various IS-F's differ by a few millimeters.

Basically, when your are making hard right turns under heavy acceleration, the entire engine, manifold, exhaust & transmission; ALL shift left...
There is a black bracket there that supports the plastic transmission aerodynamic cover, which is stationary.

What you are going to do is loosen the two flange bolts that attach to the manifold, place a pry bar in between the x-pipe and bracket. While applying some pressure & creating space, the flange bolts must be re-tightened. It is recommended to do one side at a time making sure the spacing is even and equally split on each side.

Those black brackets can also be loosened and adjsuted, OR shaved just a bit.
AGAIN, all they hold is the plastic cover, NOT the transmission.

The areas circled in red below show the possible contact points.

Your issue will be on the Passenger Side.


Passenger Side....................................Drivers Side

Let me know if this solves your issue..

Regards,

Joe Z

Joe Z

 

[drdoug75]

Joe Z,

You are totally correct it was infact that bracket!!!!!!!!! We should definitely post this over in the exhaust section so people know about it with the exhaust. The lexus dealer found it and fixed it for free even though it was aftermarket, which I a happy about.

Thanks everyone!
D

 

[Joe Z]

Joe Z,

You are totally correct it was infact that bracket!!!!!!!!! We should definitely post this over in the exhaust section so people know about it with the exhaust. The lexus dealer found it and fixed it for free even though it was aftermarket, which I a happy about.

Thanks everyone!
D

Sounds Great...!!
Basically there were only a few reported instances where this occured.

Mainly because every IS-F is not built exactly the same.
While our exhausts actually are, since they are welded inside a steel jig.

The exhaust system can be slightly adjusted during install.

We have also created a few mm's of more space on recently produced X-pipe units. None of these new units will ever get close to those brackets again.

So hopefully we won't be seeing anymore of these pop up.


Regards,
Joe Z

 

[omarab12]

The thing is, on my car, which only has 3000 miles with a stock intake makes a sort of grinding noise from the rear right tire when going slowly on a bump, and I think this is a bearing issue though it has not been through a lot. Any suggestions?

 

[Joe Z]

The thing is, on my car, which only has 3000 miles with a stock intake makes a sort of grinding noise from the rear right tire when going slowly on a bump, and I think this is a bearing issue though it has not been through a lot. Any suggestions?

Any other modifications??? or is it ALL STOCK ??


Joe Z

 

[omarab12]

Joe I meant to say a stock exhaust... what i have is a Joe Z intake tube and Tom's insert which definitely will have nothing to do with this noise.