misfit8
NAXJA Forum User
- Location
- Newport News, Virginia
Anyone done an ABS defeat or complete removal.
Or know of a tech write up on the subject..
Or know of a tech write up on the subject..
John90XJ said:For the early model Bendix 9 system used from '89-'91, you can simply remove the ABS Batt fuse which disables the ABS function but retains the power brakes.
I removed the entire ABS computer, all of the sensors and tone rings and disconnected the lights in the dash. I slater added Ford/Lincoln rear discs to the axle. The power brake aspect still work fine and it has subsequently had the master cylinder replaced under the lifetime recall.
Feel free to let me know if this the system you have and if you have any other questions. I've spent some time working on mine over the last 6 years.
BlueCuda said:I have a 97 and all I did was remove the ABS relay under the hood. Everything works normal (no abs of course) and no lights are on. Had to do this when I installed my 8.8
You're incorrect.Bones said:There is a tremendous difference between the pre '92 system (Bendix) and the '92 and later system. Removing the pump fuse on the pre '92 ABS system will remove your braking power as the Bendix system has no vacuum powered booster or master cylinder. With no pump power there is no brakes.
Bones :skull1:
Bendix survivor!
John90XJ said:In the 265,000 miles my rig has been rolling, all of the braking components have worked well and when they failed, it happened gradually.
The bigger issue is beyond the pressure accumulator, actuator (master cylinder) and pump. They are all components that wear at, arguably, the same rate as the commensurate non-ABS components of the same vintage.
I think the big issue is that the ABS function is/was crap. The brakes themselves seem to work fine. The ABS function was completely random as the rig got older. Disconnecting the ABS is a good idea. Having the rest of the components checked is also a good idea.
John90XJ said:You're incorrect.
The Bendix 9 system used from '89 to '91 uses 2 fuses, one for the ABS function, one for the main power supply to the pump system.
The removal of the ABS Batt fuse removes power to the ABS computer turning off that function. The power brakes continue to operate normally. If the wrong fuse is removed, the brakes fall back to standard non-assist hydraulic brakes. They require considerable effort but do not stop working.
They are no different at that point then standard brakes that lose their vacuum assist.
John90XJ said:You're incorrect.
If the wrong fuse is removed, the brakes fall back to standard non-assist hydraulic brakes. They require considerable effort but do not stop working.
They are no different at that point then standard brakes that lose their vacuum assist.
John90XJ said:I like the photos....yours I assume?
You make a reasonable decision based on your experience.
slowagon said:I have a '94 sport(what's left of it) that came with abs. I swaped out everything from the booster forward. I pulled the parts(booster, master cylinder, propotioning valve)from a 2000 with no abs. The swap was real easy. The only thing that was frustating was bending all new hard brake lines, because the old ones were crusty and somehow rubbing on the steering shaft. On older XJ's (pre 93 I think) the plunger rod on the booster needs to be swapped out or shortened. I also got an abs light on after the swap so I just pulled the bulb. This swap will throw a code so you might want to check into it if you have to smog your ride. If you need pictures or more info there's a write up on this I found. I'll try to find a link.
:us:
It wasn't good but it wasn't worse than expected. It could have been due to having 4 wheel discs at the time.Bones said:Have you tried to stop with the "wrong fuse" removed? I've had to stop with a pump failure.
Well....we're all at the mercy of something.Bones said:you still have your backside at the mercy of a pump and fuse.