Close
Porsche 911 Problems

Brake hydraulic pump relay stays on on Porsche 911

Problem Description and Possible Solution

The hydraulic pump relay can fail, causing the pump to run continuously, which leads to hydraulic pump failure due to overheating. Incorrect pressures will cause a low brake pedal or a high pedal effort with the possibility of other strange symptoms.
(9 people reported this problem)

Porsche 911 Vehicles With This Problem

RepairPal Verified
Average mileage: (–)
9 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998
Not Your Porsche 911 Problem?
Brake problem? Or maybe a faulty head gasket cylinder?
Learn About Your Car Problems
Search For a Specific Car Problem
Viewing 0 comments