I drive a 1995 Ford Escort (don’t laugh, even though it has 328,000 miles on it). The car is generally very reliable, despite its age. The one thing that repeatedly fails, however, is its clutch cylinders. The factory cylinders lasted about 150,000 miles. The after-market models, ever since, have failed almost like clockwork every 18,000 to 20,000 miles. Either the master or slave has had to be replaced. The longest they’ve gone is about 29,000 miles, but then both had to be replaced. No mechanic who has seen this car can explain why it would eat clutch cylinders so regularly. The only clue I have is their proximity to the firewall, and this model Escort was recalled for firewall problems early in its life.
Can anyone explain why clutch cylinders would fail so regularly, and what I might be able to do to prevent it?