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Discussion Starter · #1 ·
There is shaking in my brake pedal when I brake like I was coming to a stop sign or a light...the gear shifter shakes, I can feel it in my pedals. I took to the dealership and they said that the rear rotars were a little warped and that they changed them. Took it home next day the shaking started again but has got worse. I took it back and they test drove it but didn't find anything so I picked it up and as soon as I was driving on the highway to get off and started braking it started shaking. I was then told that because it is a unique transmission that actually the shaking was from it trying to down shift as I was braking while in automatic. So I put it in manual and down shifted and I felt it shake again. This happens when I drive normally but not all the time so in order to have to get them to see or feel it I have to find it so went on smooth, open road and tried basically to perfect finding it. Now some peoples opinions are if you have to find the problem then avoid it. They don't understand that it is happening when I drive normally sometimes. I feel like I'm going nuts so any advice would be greatly appreciated! :)
 

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Welcome to the site!!

That is very interesting....I haven't heard anything about any shaking on the F. Perhaps Flipside, FChampOH or ISFChamp could chime in and help you out

And you rear rotors are already warped? How many miles do you have on it?
 

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Hi isfchick, welcome the F forum!
I'll try to help you out. From what you are describing it sounds like your front rotors need to be replaced like Pat.ross said. If I could drive it for you, I could tell you for sure. A little strange though, typically front rotors especially rotors the size of the IS-F would have to get incredibally hot and stay hot in order to warp them. They are tough and the IS-F has huge cooling ducts to keep the brake rotors cool. I'd have to ask a couple of questions, did you buy this car new from the dealer? How many miles are on it? Has it seen any tracktime? A pulsating pedal when braking usually means warped front rotors. Front rotors on every car I know of perform about 75-80% of the braking. The amount of pulsating (shaking)your feeling can vary depending on what mph you are braking at. Say 25-35 mph may produce very little to no shaking but when coming off the highway at 65-75 mph everything shakes. Warped rotors can cause this condition. The harmonics will increase when trying to haul the car down from higher speeds. If it were me, the next step would be to talk to the service manager in person (by phone ok) and explain EXACTLY what is happening and that the replacement of the rear rotors didn't help. See if the dealership has a tech on staff dedicated to work on the IS-F. Keep the line of communication open and friendly and you should be able to come to a resolution!
 

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Discussion Starter · #5 ·
Thank you guys for the advice!! I don't understand why they would replace the rear rotors and not the front. I only have 5400 miles on it. I don't know but I feel like I'm getting the run-around from the dealership and it is driving me nuts because I love this car!! I will be a regular visitor on this site! It is great to have other ISF owners to talk to about my baby!

ISFChick ;-)
 

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If you feel that way about a dealership it might not be a bad idea to visit another one in your area (if there is one) to get a second opinion :)

Like FChampOH asked, has your F seen any track time? Was it purchased new?

PS what color did you pick up? :)
 

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FChampOH, thanks for helping out ISFCHICK. I would have to agree with you 100%. ISFChick, I'd ask for the front rotors to be atleast cut if they give you a headache replacing them.

Yes, they can be cut for those that are about to question that.
 

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Andy,

I would only let them "turn" the rotors to determine if that is really the problem. My objection for that to be the permanent solution is that you can only turn the rotors so much and then they have to be replaced when they get too thin. She only has 5,000 miles +/- so the next time they have to be turned they may be too thin to be turned a second time.

If turning the rotors solves the problem I would request a new set of rotors.
 

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I agree, I would have them replaced, however, there is a gray area on wearable items including brakes on what is covered..
 

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Discussion Starter · #10 ·
Thanks again you guys! Big Mike, no it hasn't seen any track time......actually never thought or knew you could??!! :) I ordered it and tracked it coming from Japan cause they didn't have my color that I wanted which is the blue!! What a beautiful color!!! I didn't know you could actually have those cut. I bought an extended 7 year warranty paid cash, am HOPING maybe they aren't going to charge me for it. Maybe there is fine print saying fault of the owner if under certain amount of miles. I called on that too, they aren't cheap fronts/375 per back/480 per and that doesn't include pads which aren't cheap either. I meet with them at 1pm, third time to try and fix this problem. There is no other dealership in this area. You ever truly feel like you're going nuts??!! I have to admit this site and you guys have given me a confidence to go there today and figure this out because it is a little intimidating dealing with them when you can't pin point the problem. Thank You!! ;-)
 

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Well I'm sure they will make it right for you. If your a "good" customer and see them for more than just "warranty" issues or free-bee's, they should want to help you out !!

Good Luck
 
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