bleeding brakes with ABS
#42
/thread revival
okay so i researched this topic, and am still at a loss as to what to do
I have a 2003 w/ ABS (sport suspension)
just got new rotors, pads, and stainless lines for install
i'm really not that car savvy, so we're having a tech day this weekend at Rotornut's house for the Atlanta crew- brakes aren't the thing to **** up on if any, so what's my best bet? remove the ABS, or has anyone yet to find the key for easing the pain of bleeding the ABS?
thanks
okay so i researched this topic, and am still at a loss as to what to do
I have a 2003 w/ ABS (sport suspension)
just got new rotors, pads, and stainless lines for install
i'm really not that car savvy, so we're having a tech day this weekend at Rotornut's house for the Atlanta crew- brakes aren't the thing to **** up on if any, so what's my best bet? remove the ABS, or has anyone yet to find the key for easing the pain of bleeding the ABS?
thanks
#43
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I'm gonna go with this. Seriously.
Or just bleed again and again and again until you've gone through a 25 gallon drum of brake fluid/your pedal feels right.
Bleeding cars with ABS always sucks hard.
Or just bleed again and again and again until you've gone through a 25 gallon drum of brake fluid/your pedal feels right.
Bleeding cars with ABS always sucks hard.
#44
I installed stainless lines this week on my 94 w/ ABS, and am now chasing mysterious shittiness.
I'm thinking about ordering three of these for the ABS pump:
https://www.pegasusautoracing.com/pr...asp?RecID=5037
Discuss.
I'm thinking about ordering three of these for the ABS pump:
https://www.pegasusautoracing.com/pr...asp?RecID=5037
Discuss.
#46
#48
I dont think that is going to work. The ABS pump has chambers, you need the pump to pump in order to get the fluid out. My plan when I add ABS to my racecar (because racecar), is to have all the wheels off the ground and the car on and spin the wheels then hit the brakes to get the ABS to cycle. Eventually I'd like to figure out what wires on the 01+ abs pump need to be energized to cycle it and avoid the above sillyness.
--Ian
#51
I talked to Tom at The Parts Group, and he suggested that putting it on the lift without wheels on it (with lug nuts to retain the rotors), and spinning one wheel while bleeding one of the front corners would get the pump to run. I won't be able to get to the shop before Friday or Saturday, but I intend to try this. If it doesn't work, I'm going to go through the harness and try putting a momentary switch between the appropriate wires on the pump and firing it manually.
#53
I've tried cycling the solenoids (without the pump running) while bleeding and it did not cure my soft pedal.
I will happily build the electronics to cycle the solenoids while the pump is running if someone will send me the mating connectors. There must be an unloved harness that someone can cut the connectors off of....
Really, I'd like to get an entire ABS unit so that I can disassemble it as see what's really inside. At one point I called around to the local salvage yards to see if I could get one cheap, but there weren't any. They probably would have wanted $200 for it anyway, which is more than I want to spend just to dissect it.
If anyone has an ABS unit that they are willing to part with (I'll even pay shipping) then I will disassemble it, take photos, write it up for the greater good...
I will happily build the electronics to cycle the solenoids while the pump is running if someone will send me the mating connectors. There must be an unloved harness that someone can cut the connectors off of....
Really, I'd like to get an entire ABS unit so that I can disassemble it as see what's really inside. At one point I called around to the local salvage yards to see if I could get one cheap, but there weren't any. They probably would have wanted $200 for it anyway, which is more than I want to spend just to dissect it.
If anyone has an ABS unit that they are willing to part with (I'll even pay shipping) then I will disassemble it, take photos, write it up for the greater good...
#56
OTOH, taking the car out on the road and doing real-world ABS stops *did* make a noticable difference to pedal feel. It's still not really where I'd like it to be, though.
--Ian
#59
Perhaps. But you shouldnt even have to get an abs engagement. It should cycle everything on the self test when you hit 10mph the first time after startup. Now you might need to hit 10mph with all 4 wheels to get the self test to start which is a little more difficult to do. But you only need to spin the hubs to ~150rpm to make the sensors read that fast. I could whip up some hub to drill adapters for spinning the front wheels, 2 hand drills and 2 people with the clutch let out in 1st should do it. ****.