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Front Hub problem

 
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strange
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PostPosted: Sun Apr 07, 2013 12:09 pm    Post subject:  Front Hub problem Reply with quote

Recently replaced my both front hub bearings. Trk control light and abs light were on before replacement. After replacing both hubs, lights remained on.
Please help
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gearhead1
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PostPosted: Sun Apr 07, 2013 1:15 pm    Post subject:   Reply with quote

might be a break in the harness going to the hubs. that is where mine was. found a ac delco repair kit on amazon.
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IffyG
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PostPosted: Sun Apr 07, 2013 3:23 pm    Post subject:   Reply with quote

As Gearhead mentioned check the wiring harnesses. They are known to fray and cause problems. Aside from that, what brand hub did you use? If you went with something other than AC Delco or Timken, it's not far fetched that the new one was bad out of the box.

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Lingenfelter
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PostPosted: Mon Apr 08, 2013 12:07 pm    Post subject:   Reply with quote

Are you positive it's a front hub problem? I beleieve the rears have wheel speed sensors as well, which work as part of the TPMS system - maybe the problem is a rear hub?

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j_weezy
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PostPosted: Mon Apr 08, 2013 7:18 pm    Post subject:   Reply with quote

I just had this problem.abs and Trac light on changed both front hubs,their was play in the wheel and one was grinding so I now they were bad,got that all done light still on with abs acting up.took it to a shop and they said the rear hub is bad.so I'd get those rear ones checked.
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strange
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PostPosted: Fri Apr 12, 2013 10:11 am    Post subject:   Reply with quote

Thanks guys, think I'll try the rear as well.
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9C3
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PostPosted: Fri Apr 12, 2013 8:06 pm    Post subject:   Reply with quote

I have a friend whose a GM tech. The ABS light was coming on from time to time, so I came by on a Saturday when the service mgr was gone, & he plugged in the OBD machine. It immediately pinpointed the right front ABS harness. He replaced it, & all was good, but he said the left one was on the way out, but was OK for now. Sure enough, a month later, the ABS light came on, & he replaced the other harness. No more ABS light. I hope you guys aren't replacing the hubs hoping the ABS light goes out. GARY

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strange
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PostPosted: Sat Apr 13, 2013 7:39 am    Post subject:   Reply with quote

@9C3 I keep reading about how it's the harness that malfunctions mostly on cars. Plus I just put on 2 brand new front hubs and still have lights on.
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9C3
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PostPosted: Sat Apr 13, 2013 9:04 am    Post subject:   Reply with quote

While it sucks to pay the crazy rates a dealer wants, at least they can point you in the right direction. To change perfectly good hubs hoping that will make the ABS light go out [and it doesn't] is insane. In my case, I'm lucky to have worked at a GM dealer & still have friends there, but by Tony plugging in the OBD machine, it immediately pointed him to the right front harness. GARY

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Redshiba
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PostPosted: Wed Apr 17, 2013 12:02 am    Post subject:   Reply with quote

Do you have part number(s) for those harnesses?

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9C3
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PostPosted: Wed Apr 17, 2013 12:19 am    Post subject:   Reply with quote

No. Fortunately for me, a new Impala from one of the car rental firms had the entire under hood wiring harness changed, because rats had eaten the insulation from some of the wires causing major problems. My friend removed the ABS wires from the old harness which were untouched by the rats. He then installed them on my car, but I did see on E-bay the ABS wires sold by Dorman. 970-040, & 970-041 GARY

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hardtrailz
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PostPosted: Wed Apr 17, 2013 9:19 am    Post subject:   Reply with quote

http://www.ebay.com/itm/GENERA.....1608wt_932

Is this the correct one? Is there a difference between the two sides? It looks like you just get the plug and wires to splice in, so if my plug is ok, can I just splice in my own replacement wires?
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PostPosted: Wed Apr 17, 2013 9:35 am    Post subject:   Reply with quote

The 970-040 is the left front, & the 970-041 is the right front. Use the whole harness including the plug, so you will only have 1 splice per side. W/o the plug, you will have 2 splices per side. If your top rad hose was leaking near the rad, would you just splice in the part that was leaking, or change the complete hose? It takes less time to change the complete harness, than to just splice in a small section. What is so difficult about unplugging the plug? GARY

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PostPosted: Wed Apr 17, 2013 10:53 am    Post subject:   Reply with quote

Two splices if free and not difficult. Why spend extra money if not needed?

I would never splice a hose that was under pressure, but wiring that I have to splice either way...why not?
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IffyG
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PostPosted: Wed Apr 17, 2013 11:15 am    Post subject:   Reply with quote

If you are lucky you will have enough slack to attempt a splice on the hub wiring harness. I was not so lucky with mine there was like half an inch of good wire left and there was no way I could make it work.

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