Brake Vacuum Problem

Maccmike · Dec 22nd, 2019, 15:21

Hi folk.
Bought my S60 about a months ago, had an ABS fault which I found and fixed the ABS ring.

Also had a vacuum fault which resulted in now brake assist until car had idled for a few minutes.

Changed the pressure switch behind the headlight - no result.
Have just fitted new vacuum pump (electric not mechanical type) - no result. Tested the old one and it works. Multimeter on pressure switch showed no power.
The 4th invisible fuse box behind the OBD - 20amp fuse had blown.
Fitted new one and hey presto.

Hope this is helpful to someone.

T5R92011 · Dec 22nd, 2019, 15:28

Good post!

Dec 22nd, 2019, 15:21	#1
Maccmike Member Last Online: Feb 8th, 2021 20:37 Join Date: Nov 2019 Location: S60 2.0T	Brake Vacuum Problem Hi folk. Bought my S60 about a months ago, had an ABS fault which I found and fixed the ABS ring. Also had a vacuum fault which resulted in now brake assist until car had idled for a few minutes. Changed the pressure switch behind the headlight - no result. Have just fitted new vacuum pump (electric not mechanical type) - no result. Tested the old one and it works. Multimeter on pressure switch showed no power. The 4th invisible fuse box behind the OBD - 20amp fuse had blown. Fitted new one and hey presto. Hope this is helpful to someone.

Dec 22nd, 2019, 15:28	#2
T5R92011 FCW Auto Service Last Online: Yesterday 18:14 Join Date: Feb 2015 Location: Gloucester	Good post! __________________ FCW Auto Service (Gloucester) https://www.fcw-autoservice.com

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