I just noticed that my 2004 Volvo XC70's brake pedal was suddenly low when the engine is running-- it feels normal when the car is off . It was fine yesterday-- I drove 200 km of highway yesterday with no issues.
Any ideas about this?
Brake pedal low when running, normal when off
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Herb Goltz
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RickHaleParker
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Check the brake fluid level and for crud at the bottom of the brake fluid reservoir.
If low: Top off then pump the brakes with engine running. Check to see if you are losing fluid.
If it was real low, reservoir empty, you might have air in the system.
If not losing fluid: With the engine off, put your foot on the brake pedal and press. Does it slowly sink to the floor?
If low: Top off then pump the brakes with engine running. Check to see if you are losing fluid.
If it was real low, reservoir empty, you might have air in the system.
If not losing fluid: With the engine off, put your foot on the brake pedal and press. Does it slowly sink to the floor?
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1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2017 Ford PIU. 3.5l, Twin Turbo, 365 Hp.
............................
Past
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. ( Killed by a plastic radiator. )
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion ( I moved, the project did not )
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0. ( Transmission dead after sitting for a winter )
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2017 Ford PIU. 3.5l, Twin Turbo, 365 Hp.
............................
Past
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. ( Killed by a plastic radiator. )
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion ( I moved, the project did not )
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0. ( Transmission dead after sitting for a winter )
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