Honda Accord (1990 - 2002) Includes 1997 - 1999 Acura CL

Brake petal goes to floor when hot

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Old 08-08-2008, 03:29 PM
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Default Brake petal goes to floor when hot

1992 Accord.
brakes work fine on short trips (under 5 miles) during 90-100 degree days,but after that the petal goes slowly to floor with little reduction in speed when applied. Pumping rapidly will increase breaking slightly, but petal still goes down. When car cools down, or the outside temp is below say 85, they work fine.

Any ideas?
Old 08-08-2008, 03:45 PM
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Default Re: Brake petal goes to floor when hot (slvdvl)

I'm willing to bet you'll need a new master cylinder.
Old 08-08-2008, 05:19 PM
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Default Re: Brake petal goes to floor when hot (slvdvl)

bleed your brakes!
Old 08-08-2008, 09:44 PM
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New master cylinder. I had the same symptoms in my '95 and they were solved by replacing the MC. It's a fairly quick and easy repair.
Old 08-09-2008, 06:37 AM
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Default Re: Brake petal goes to floor when hot (KayTran)

Bleeding would cure a soft pedal, not a spontaneously non-existent pedal.
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