Stiff brake pedal

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driftkaztik
Posts: 264
Joined: Fri Oct 11, 2002 3:03 am
Car: japanese cars and tuning them, rally, show and drifting
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Hello everyone

I have a 90 m30. Vg30e

recently my brake pedal has been stiff after being parked for a couple of hours.

but when my car is on, it is fine. Its leaving my car for a couple of hours and then it becomes hard to push down.

any ideas?

thanks


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elwesso
Posts: 30810
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Car: 94 Infiniti Q45t 5 spd
2007 BMW M Coupe
2007 Infiniti G35 S 6MT
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Your brake booster is losing vacuum somehow, either the diaphram or the hose.... Obviously check the hose first.

driftkaztik
Posts: 264
Joined: Fri Oct 11, 2002 3:03 am
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thanks man!!!

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bullittandy
Posts: 1415
Joined: Thu Jul 21, 2005 4:57 pm
Car: 2003 Infiniti Q45 70K miles
1999 Infiniti Q45 Touring 180K miles
1997 Infiniti Q45 270K miles (sold)
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Location: Atlanta
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If it is stiff when the engine is off and not stiff when the engine is running then its normal. After the engine is turned off you have about 2-3 pedal pumps untilthe stored vacuum is used.


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