Hard brake pedal after sitting for a few days
#1
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Hard brake pedal after sitting for a few days
Anyone have a issue after their car sits a few days and the brake pedal is really stiff when you depress it at first start up? Like it won't depress anymore then it is.
#2
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Yes, I just had that issue on my 2008 IS F..
My Brake Booster Check Valve was acting up..!!
So I cleaned it with brake cleaner.. And it went back to normal..
Yours would be to new to start gunking up.. So might need a new check valve covered under warranty..
Joe Z
My Brake Booster Check Valve was acting up..!!
So I cleaned it with brake cleaner.. And it went back to normal..
Yours would be to new to start gunking up.. So might need a new check valve covered under warranty..
Joe Z
Mine just acted up two days ago... Leaving from home and then work..
Brake pedal felt like a brick on first start up..
Thanks to Lobux's recommendation I cleaned mine with brake cleaner last night.. Soo far today the pressure remained in the brake booster..
If it keeps acting up or fails again, I will just order a new Brake Booster Check Valve & Grommet
Essentially as these things get old, they lose their ability to hold the boost over a long period of time.
Here are the pics I took last night..
Joe Z
Brake pedal felt like a brick on first start up..
Thanks to Lobux's recommendation I cleaned mine with brake cleaner last night.. Soo far today the pressure remained in the brake booster..
If it keeps acting up or fails again, I will just order a new Brake Booster Check Valve & Grommet
Essentially as these things get old, they lose their ability to hold the boost over a long period of time.
Here are the pics I took last night..
Joe Z
#4
After several days is completely normal. Tires also lose pressure over time. If you get a hard pedal after a few hours, then I'd mess with the valve. I doubt any dealer would replace it under those symptoms, but you can certainly try. And don't be surprised if the new one acts the same way. Good luck.
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brought it to dealer. said it was a worn seal. they replaced valve. However again after sitting for like 3 days I try to start car and its hard again. any idea what could still be the issue. Its never did that when i first got it. now all of a sudden it does. doesn't sound normal. never had any car do that before.
#6
It's more common when it gets cold. Don't obsess over things like that man; it's a non-issue. Unless you felt greater pedal effort, it's just normal. You'll continue wasting your time if you keep chasing that ghost. If it helps, I've NEVER owned a car that doesn't get a 'hard' brake pedal after days of not using it. And I've bought dozens of new cars over the years. Good luck.
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