Pulsing brake pedal when turning engine off

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Jaf
Posts: 514
Joined: 09 Dec 2010, 19:17
Location: Oria, Spain
My Cars:
x 29

Pulsing brake pedal when turning engine off

Post by Jaf »

Hi guys. Noticed today when I turned the engine off after a drive that the brake pedal pulsed for 10 secs. Something to worry about?

I do still have a lhm leak from or near the doseur brake valve. Have got a endoscope camera (yay!) but it's still too hot to be working on the car unless I really have to...

Thanks!
Fred, a silver 1998 1.9TD SX Xantia.
Gwin, a white 1994 1.1 AX.
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Mandrake
Posts: 8614
Joined: 10 Apr 2005, 17:23
Location: North Lanarkshire, UK
My Cars:
x 664

Re: Pulsing brake pedal when turning engine off

Post by Mandrake »

Does it always do this brake pedal pulsing when turned off ?

Try removing the ABS fuse then repeating the test. That will at least narrow down whether its an ABS related fault...
Simon

1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
2016 Nissan Leaf Tekna 30kWh in White

2011 Peugeot Ion Full Electric in Silver
1977 G Special 1129cc LHD
1978 CX 2400
1997 Xantia S1 2.0i Auto VSX
1998 Xantia S2 3.0 V6 Auto Exclusive
Jaf
Posts: 514
Joined: 09 Dec 2010, 19:17
Location: Oria, Spain
My Cars:
x 29

Re: Pulsing brake pedal when turning engine off

Post by Jaf »

Thanks but she doesn't have abs. Too fancy for Fred. The pulsing happened again today when I tested it. I wouldn't normally have my foot on the brake pedal when turning the engine off, perhaps I should stop doing that!

Brakes are working fine and pads have only done 10,000kms.

Hopefully it's just the lhm just being pumped back to the tank as because she is LHD the doseur valve is right underneath the tank.
Fred, a silver 1998 1.9TD SX Xantia.
Gwin, a white 1994 1.1 AX.
User avatar
Mandrake
Posts: 8614
Joined: 10 Apr 2005, 17:23
Location: North Lanarkshire, UK
My Cars:
x 664

Re: Pulsing brake pedal when turning engine off

Post by Mandrake »

If you have no ABS then how good is the condition of the accumulator sphere ?
Simon

1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
2016 Nissan Leaf Tekna 30kWh in White

2011 Peugeot Ion Full Electric in Silver
1977 G Special 1129cc LHD
1978 CX 2400
1997 Xantia S1 2.0i Auto VSX
1998 Xantia S2 3.0 V6 Auto Exclusive
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