3 master cylinders failed in 3 years - why?
I just replaced the master cylinder on my '92 SSE */c for the 3rd time in 3 years, and I only drive 10,000 miles or so a year. Each master cylinder was a BRAND NEW one made by Fenco, from AutoZone...it'* a good thing that they were under warranty, so I only paid for the 1st one, but having to replace them this often is getting annoying. The first one lost internal pressure but didn't leak externally, and the last 2 didn't leak pressure but leaked fluid at the piston seal so fluid ran down the vacuum booster.
Have any of you had similar experiences with new master cylinders?
'99 Bonneville SLE, white, 112,000 miles
'02 Park Avenue Ultra, white diamond pearl, 88,000 miles