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#1
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ABS kicks in at low speeds
Hello!
I just replace the L and R transaxles, due to split outboard CV boots. (Research said it was easier and quicker to just replace the whole axles than to replace and repack the boots and rebuild the transaxles.) The parts that I obtained were from autopartswarehouse.com. Installation went well, but after assembly, the ABS system kicks in and pulses the brakes at slow speeds--almost when coming to a stop. Upon inspection, it appears that the ABS sensor(s) are not lining up correctly on the pulser rings on the CV axles. It appears that the outboard portion of the axle should be "sucked in" about 1/4" more into the hub, so that the sensor will line up correctly on the pulser ring. As it is now, the sensor is just barely riding above the inside of the pulser ring, and I suspect that this improper mating is activating the ABS. The spindle nut is properly torqued, and it appears that the axle is being pulled tight against the hub--in other words, there doesn't appear to be another 1/4" to tighten up anywhere so that the pulser and sensor line up correctly. Does anyone have any experience with this? Am I missing something on the installation that is prevening proper alignment of sensor and pulser ring? Or are the transaxle parts that I ordered just machined improperly or the wrong parts for this installation? I appreciate any help you might be able to provide. Juan |
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#2
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ABS kicks in at low speeds
Juan wrote:
> Hello! > > I just replace the L and R transaxles, due to split outboard CV boots. > (Research said it was easier and quicker to just replace the whole > axles than to replace and repack the boots and rebuild the > transaxles.) > > The parts that I obtained were from autopartswarehouse.com. > > Installation went well, but after assembly, the ABS system kicks in > and pulses the brakes at slow speeds--almost when coming to a stop. > Upon inspection, it appears that the ABS sensor(s) are not lining up > correctly on the pulser rings on the CV axles. It appears that the > outboard portion of the axle should be "sucked in" about 1/4" more > into the hub, so that the sensor will line up correctly on the pulser > ring. As it is now, the sensor is just barely riding above the inside > of the pulser ring, and I suspect that this improper mating is > activating the ABS. > > The spindle nut is properly torqued, and it appears that the axle is > being pulled tight against the hub--in other words, there doesn't > appear to be another 1/4" to tighten up anywhere so that the pulser > and sensor line up correctly. > > Does anyone have any experience with this? Am I missing something on > the installation that is prevening proper alignment of sensor and > pulser ring? Or are the transaxle parts that I ordered just machined > improperly or the wrong parts for this installation? > > I appreciate any help you might be able to provide. > Juan > --------------------------- You may have installed the wrong replacement axles? Were you careful to specify MT or automatic tranny? They could be machined wrong, as you said. Any way you can adjust the brackets? 'Curly' |
#3
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ABS kicks in at low speeds
On Jun 3, 8:06 pm, motsco_ > wrote:
> Juan wrote: > > Hello! > > > I just replace the L and R transaxles, due to split outboard CV boots. > > (Research said it was easier and quicker to just replace the whole > > axles than to replace and repack the boots and rebuild the > > transaxles.) > > > The parts that I obtained were from autopartswarehouse.com. > > > Installation went well, but after assembly, the ABS system kicks in > > and pulses the brakes at slow speeds--almost when coming to a stop. > > Upon inspection, it appears that the ABS sensor(s) are not lining up > > correctly on the pulser rings on the CV axles. It appears that the > > outboard portion of the axle should be "sucked in" about 1/4" more > > into the hub, so that the sensor will line up correctly on the pulser > > ring. As it is now, the sensor is just barely riding above the inside > > of the pulser ring, and I suspect that this improper mating is > > activating the ABS. > > > The spindle nut is properly torqued, and it appears that the axle is > > being pulled tight against the hub--in other words, there doesn't > > appear to be another 1/4" to tighten up anywhere so that the pulser > > and sensor line up correctly. > > > Does anyone have any experience with this? Am I missing something on > > the installation that is prevening proper alignment of sensor and > > pulser ring? Or are the transaxle parts that I ordered just machined > > improperly or the wrong parts for this installation? > > > I appreciate any help you might be able to provide. > > Juan > > --------------------------- > > You may have installed the wrong replacement axles? Were you careful to > specify MT or automatic tranny? They could be machined wrong, as you said. > > Any way you can adjust the brackets? > > 'Curly'- Hide quoted text - > > - Show quoted text - Great timing, I just had the passenger side axle for my 98 accord V6 replaced (outer boot torn) along with a brake flush. I have the same issue, I had been thinking that it is a brake flush issue so far and posted this in this newsgroup with the topic: "98 Accord brake fluid flush issue ". >From what I read in your post, looks like the axle replacement seems to have some effect on the sensor..? My axle was replaced by a local Midas store, don't you think they would know about the sensor.. ? Anyways, your e-mail greatly helps in pursuing this issue for me... -- John. |
#4
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ABS kicks in at low speeds
On Jun 3, 6:47 pm, Juan > wrote:
> Hello! > > I just replace the L and R transaxles, due to split outboard CV boots. > (Research said it was easier and quicker to just replace the whole > axles than to replace and repack the boots and rebuild the > transaxles.) > > The parts that I obtained were from autopartswarehouse.com. > > Installation went well, but after assembly, the ABS system kicks in > and pulses the brakes at slow speeds--almost when coming to a stop. > Upon inspection, it appears that the ABS sensor(s) are not lining up > correctly on the pulser rings on the CV axles. It appears that the > outboard portion of the axle should be "sucked in" about 1/4" more > into the hub, so that the sensor will line up correctly on the pulser > ring. As it is now, the sensor is just barely riding above the inside > of the pulser ring, and I suspect that this improper mating is > activating the ABS. > > The spindle nut is properly torqued, and it appears that the axle is > being pulled tight against the hub--in other words, there doesn't > appear to be another 1/4" to tighten up anywhere so that the pulser > and sensor line up correctly. > > Does anyone have any experience with this? Am I missing something on > the installation that is prevening proper alignment of sensor and > pulser ring? Or are the transaxle parts that I ordered just machined > improperly or the wrong parts for this installation? > > I appreciate any help you might be able to provide. > Juan A very common problem with aftermarket half-shafts. Go back to the source and tell them the problem. You're going to have to do the whole job over... My regrets, been there myself. |
#5
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ABS kicks in at low speeds
Well, that took care of the problem!
I replaced the shafts on both sides with shafts from a different manufacture. The first parts were manufactured by CV Unlimited, and the second parts are by EMPI. When the shafts from the two manufacturers are placed side by side, the pulser ring on the EMPI unit is about 1/4" closer to the spindle on the outboard CV joint. The new part lines up perfectly with the ABS sensor, and the braking problem is completely gone. Since I had everything apart again, anyway, I used the opportunity to change the ball joints on both sides. Boy, does that really tighten up the suspension nicely! I hadn't realized how sloppy things had gotten. Just to ventilate here a little bit, I find it hard to believe that a manufacturer can specify a part for an application that is so far out of spec and completely unserviceable. The installation of those axles by CV Unlimited the first time around created a potentially dangerous braking situation, due to the mismatch with the ABS sensor and the repeated activation of the ABS system. I have an RMA from the online store, so they've authorized the return. If something happens that I don't get a refund, I'll let you know. As it is, I'm still on the line for the return shipping. Live and learn! Thanks for the help! Juan |
#6
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ABS kicks in at low speeds
Juan wrote:
> Well, that took care of the problem! > > I replaced the shafts on both sides with shafts from a different > manufacture. The first parts were manufactured by CV Unlimited, and > the second parts are by EMPI. > > When the shafts from the two manufacturers are placed side by side, > the pulser ring on the EMPI unit is about 1/4" closer to the spindle > on the outboard CV joint. The new part lines up perfectly with the ABS > sensor, and the braking problem is completely gone. > > Since I had everything apart again, anyway, I used the opportunity to > change the ball joints on both sides. Boy, does that really tighten up > the suspension nicely! I hadn't realized how sloppy things had gotten. > > Just to ventilate here a little bit, I find it hard to believe that a > manufacturer can specify a part for an application that is so far out > of spec and completely unserviceable. The installation of those axles > by CV Unlimited the first time around created a potentially dangerous > braking situation, due to the mismatch with the ABS sensor and the > repeated activation of the ABS system. I have an RMA from the online > store, so they've authorized the return. If something happens that I > don't get a refund, I'll let you know. As it is, I'm still on the line > for the return shipping. you may be able to have them repay that too. i just got refunded shipping on some defective shocks i'd bought that were replaced by the manufacturer. initially, they weren't volunteering to do it, but they came through in the end. honey works better than vinegar. > Live and learn! > > Thanks for the help! > Juan > |
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