ABS Pump Issue

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Latitude48
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The ABS pump in my 944 S2 occasionally makes a clackity clackity sound when I start the engine. If I put my foot on the brake the sounds goes away. Any idea what's happening or how to rectify the problem? Thanks.


Tom Pultz
- 1989 944 Turbo - Guards Red/Linen
- 1990 944 S2 - Guards Red/Black
- 2003 Audi 1.8TQ - Denim Blue/Black
- 2003 Honda Civic Si - Vivid Blue/Black
- 2023 VW Golf R Base - Lapiz Blue/Titan Black

#1

Zirconocene
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Not totally sure, never really dealt with this on my 944, but on the 928 I know it's the case that you sometimes have to bleed the unit. Without a tool to trigger the ABS pump, I was instructed to bleed the unit at the nuts for the hard lines. When my 928 S4 had mushy brakes, this was part of what I went through to get them to feeling better. On the 928, I think that a slow, gravity bleed was enough to clear some small bubbles that were in there.

Good luck


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1990 928 GT
1990 928 S4
1991 944 S2
1993 968
2002 911 C2

#2

sourcreamfries
Posts: 10
Joined: Tue Oct 22, 2024 11:17 pm
These older abs systems can be tricky. Might want to get it checked by someone who knows 944s specifically, just to be safe. My brother's makes weird noises sometimes too.


#3

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