ABS Thoughts (1 Viewer)

[baldilocks]

My problem is I can't hard stop. When driving around 50 mph, if I slam on my brakes it takes me about 2 seconds to come to a stop. I need new pads, rotors and calipers anyway (already bought them). I had a shop try to bleed the ABS with no luck. This all started after I unhooked my break line coils in order to get in the alternator upgrade. I have bled my breaks, a shop has bled my brakes and still no luck. At this point, in my opinion, it has to be calipers, master cylinder, or ABS.

Maybe I need to find some gravel and try slamming on the brakes then re-bleed the system.

You have now heard the different experiences and opinions concerning your brake system. Obviously it worked well from the factory but many of us have become very frustrated with bleeding air from the entire system and the pedal feel and poor stopping power that you are experiencing so we simplified the system with good results but ABS was sacrificed.

I was never able to gravity bleed my brake system until I eliminated the abs system. Some say they can. Like everything else, experiences vary. All I know is that my Landcruiser stops much better now than it did before.

 

[ppc]

My problem is I can't hard stop. When driving around 50 mph, if I slam on my brakes it takes me about 2 seconds to come to a stop.

Time to stop of about 2 seconds doesn't seem that unreasonable. Distance to stop is a better measurement. At 50 mph you are traveling about 73 feet per second before braking. That means the total braking distance has to be significantly less than a maximum of 146 feet, something around 100 feet. Most new cars built today can't brake in less than 110 feet from 60 mph.

Your LC weighs a minimum of 5,000 pounds and is going to take a lot longer to stop than a Corolla.

 

[ScubaSteve80]

Time to stop of about 2 seconds does seem that unreasonable. Distance to stop is a better measurement. At 50 mph you are traveling about 73 feet per second before braking. That means the total braking distance has to be significantly less than a maximum of 146 feet, something around 100 feet. Most new cars built today can't brake in less than 110 feet from 60 mph.

Your LC weighs a minimum of 5,000 pounds and is going to take a lot longer to stop than a Corolla.

Ok, well maybe it's not 2 seconds... My point is it doesn't stop like it should or how it did before. Something is definitely not right.

 

[Uluabob]

Wow, that's a lot of feedback, sounds like I need to bleed the crap out of the brakes and possibly a new master cylinder, thanks to all who have chimed in! Really appreciated

 

[95BBC]

What?

1993 ncf, difference in master cylinders.

 

[Uluabob]

So mechanic told me they bled the system again, and still couldn't lock up the tires in a panic stop, but when they disconnected the ABS relay they can lock em up or least get tires to chirp, so now they are thinking that its the ABS system, I sent them the FSM to read the specific pages about testing the ABS actuator! Thank you mud for the link! We'll see what they say tomorrow. THinking maybe I take it to the dealer . . . I wish I had a cruiser specialist nearby!