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Thread: no brakes

  1. 17th July 2023, 06:30 PM #1
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    no brakes

    Hi all on my way home today my brake pedal became rock hard and my braking was near nonexistent when I got home I replaced the booster line from the booster to the alternator pump with no improvement. I disconnected the booster line while the car was running at the booster there seems to be no suction there in the line back to the vacuum pump. I replaced the one way valve into the booster with a after market one from a brake specialist any help would be great thanks .
    Phillip
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  2. 17th July 2023, 07:35 PM #2
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    Hi, check the pipe(s) from the T-joint toward the EGR modulator solenoid(s) or EGR valve(s)(if it's still there)... if these are ruled out do somehow to check for vacuum directly on the vacuum pump's port and if no sucction there then the pump is gone.
    Discovery Td5 (2000), manual, tuned
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  3. 17th July 2023, 07:56 PM #3
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    There seems to be no vacuum I unplugged it at the booster and didn't get any suction at all .
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  4. 17th July 2023, 08:04 PM #4
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    There is still something between the vacuum pump and booster where it can leak though cos if it's a leak on the line somewhere there will be nothing at the booster hence my first reply
    Discovery Td5 (2000), manual, tuned
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  5. 20th July 2023, 08:31 AM #5
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    I removed the alternator and checked the vacuum pump it had destroyed itself the internals were in pieces I will put a new alternator and pump in when they arrive thanks S for your help.
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