bcmaxx
NAXJA Forum User
- Location
- The West Kootenays,B.C. Canada
Been fighting with a funny brake pedal since I have owned my jeep-8 months now (89 xj,4.0,auto,no abs) It has an intermmitent spongy brake pedal. At first I replaced the master cylinder,pads,shims and calipers,checked booster vacuum and replaced hose to booster,no luck pedal seems to go darn near to the floor but it still stops,I drove my friends 88 xj and I couldn't believe how good and firm the pedal felt,night and day difference,so I slowly replaced the following:
front brake lines and hoses,rear flex hose,rear drums,shoes,cylinders and steel lines,brake adjusters and adjuster cables and guides,calipers again,bled,bled,installed speedi bleeders,bled and bled,no change in pedal until recently. Every once and a while I'll hop in my jeep go for a drive and hit the pedal and its firm,brakes very well just like I think it should and three hours later back to the sponge. Its firm sometimes and back to crap, temperature ambient and engine doesn't make a diff,neither does rpm,wet damp or dry?Anyone have a clue whats going on? I manage an auto repair shop so I'm not a backyarder,none of my techs really have a clue either.
front brake lines and hoses,rear flex hose,rear drums,shoes,cylinders and steel lines,brake adjusters and adjuster cables and guides,calipers again,bled,bled,installed speedi bleeders,bled and bled,no change in pedal until recently. Every once and a while I'll hop in my jeep go for a drive and hit the pedal and its firm,brakes very well just like I think it should and three hours later back to the sponge. Its firm sometimes and back to crap, temperature ambient and engine doesn't make a diff,neither does rpm,wet damp or dry?Anyone have a clue whats going on? I manage an auto repair shop so I'm not a backyarder,none of my techs really have a clue either.