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First Generation Legend (1986-1990) Discuss the 1st Generation Honda/Acura Legend (US 8

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Old 03-15-18, 08:20 PM   #1 (permalink)
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1989 Acura Legend LS, disconnecting ABS

1989 Acura Legend LS, Automatic 4 Door ABS Reservoir overfills when I drive and stop. Modulator, Accumulator, Pump and high pressure lines are no longer available. All shops told me that they wont install these used parts, wont guarantee that they will work, fix this problem. Also, they stated that the cost would be around 2K, for a car worth less than 2K. Also, there are metal shaving in the ABS Reservoir. How many fuses do you disconnect? There are ALB, ALB1, ALB2 and ALB3. ALB1, 2 and 3 are 15W, ALB is 40W. Do I disconnect all 4, or only the 3 with 15W? Is there anything else I need to disconnect? ABS Master Control, or ABS Relay, or will the fuses be the only thing to remove to stop the ABS Reservoir from overflowing? Where would I find the Master Control or ABS Relay, if they need to be removed?
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Old 03-16-18, 10:26 PM   #2 (permalink)
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Yes, you should be ok removing those fuses. The ABS module itself is behind the rear seat. You'll have to access it through the trunk and remove the rear cover.
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Old 03-17-18, 11:29 AM   #3 (permalink)
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ABS Control Module and fuses

Should I disconnect 3 fuses or 4 fuses to stop the ABS (Modulator, Accumulator, Pump)? There is ALB 40w, ALB 1 15W, ALB 2 15W and ALB 3 15 W? I know to remove all 15w fuses. Do I remove ALB 40W, is this a part of the ABS? Do all fuses pull out? ABS Control Module in the passenger side rear seat? Is it held together by screws? Is there a connection to disconnect inside? Thank you. I cant find new parts, even so, its over 4K to replace. Not going to buy parts at a junk yard, no mechanic will use these parts, no guarantee. Thank you.

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Old 05-22-18, 05:47 PM   #4 (permalink)
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Quote:
Originally Posted by bdgabriel1 View Post
1989 Acura Legend LS, Automatic 4 Door ABS Reservoir overfills when I drive and stop. Modulator, Accumulator, Pump and high pressure lines are no longer available. All shops told me that they wont install these used parts, wont guarantee that they will work, fix this problem. Also, they stated that the cost would be around 2K, for a car worth less than 2K. Also, there are metal shaving in the ABS Reservoir. How many fuses do you disconnect? There are ALB, ALB1, ALB2 and ALB3. ALB1, 2 and 3 are 15W, ALB is 40W. Do I disconnect all 4, or only the 3 with 15W? Is there anything else I need to disconnect? ABS Master Control, or ABS Relay, or will the fuses be the only thing to remove to stop the ABS Reservoir from overflowing? Where would I find the Master Control or ABS Relay, if they need to be removed?
I had the same problem of ALB reservoir overfilling on an 1988 Sedan L which had not been driven for several years (I still have it). With a recommendation from a post on this website I drove the vehicle out to a gravel road and made multiple hard stops causing the ALB unti to "exercise" itself. It's valves re-seated and/or dislodged seat contamination allowing for normal functioning. If the ALB unit valves are not seating, then the master cylinder pressure seeps by the valves and overfills the ALB reservoir, so you'll have to seat the valves to stop the overfill from happening or separate the ALB piping from the master cylinder piping.
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Old 05-28-18, 09:58 PM   #5 (permalink)
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I solved this issue several years ago by performing a 'bypass operation'. If you search you'll find a very detailed explanation. The reservoir overflow issue occurred on my still-working ABS system. My fix essentially re-directs the overflowing fluid back into the other reservoir, and allows the fluid to move freely back-and-forth between the regular brake fluid reservoir and the ABS fluid reservoir. Go here: https://www.acura-legend.com/vbulleti...low-fix-56937/
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