05-15-2019, 08:48 AM | #1 |
AKA: jeepnski
Join Date: Sep 2002
Location: Pittsburgh, PA
Posts: 16,864
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GMC 2500 brake issue
anyone ever run into this issue before? the brakes work really well,, but the rears only last like 5000 miles. 1 set went quicker than expected, then the last 2 sets have been about 5k. one power stop kit, one EBC kit. something is dragging them because all 4 rear pads wear totally even. fronts have been fine.
i just replaced the master cyl since it was cheaper than the ABS module ... cross your fingers for me that was it. |
05-15-2019, 08:59 AM | #2 |
Senior Member
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Have you replaced the calipers yet? For some reason I recall something about the calipers going 'bad' rather quickly on those trucks.
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05-15-2019, 09:12 AM | #3 |
- The Don -
Join Date: Sep 2002
Location: MN
Posts: 49,170
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I was going through front pads on my 1500...I just replaced the calipers, thinking that was it. No idea what the 2500 deal is, but hope you get it figured out, 5k, sheesh
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To each his own. Not all those who wander are lost. The great irony - triggered snowflakes accusing triggered snowflakes of being triggered snowflakes |
05-15-2019, 09:12 AM | #4 |
not cool enough
Join Date: Dec 2006
Location: IA
Posts: 2,618
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Silly question, but are you spinning the rear tires a bunch? Traction control will eat through a set of rear brakes quickly.
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05-15-2019, 12:15 PM | #5 |
AKA: jeepnski
Join Date: Sep 2002
Location: Pittsburgh, PA
Posts: 16,864
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rear calipers were new 5k ago after the first 5k set of pads. rotors n pads went on at the same time. just did them all again, but the calipers were smooth and all pads worn even so i left those.
i just did front calipers as one locked up on me, truck has 175,000 on the clock though so not too shocked there. did new front unit bearings, packed the rear hubs and did new seals, all new e-brake BS, new fluid in the rear ... it was a spendy deal. |
05-15-2019, 12:16 PM | #6 |
AKA: jeepnski
Join Date: Sep 2002
Location: Pittsburgh, PA
Posts: 16,864
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i've read online a bunch of ppl complaining about gm trucks going thru rear pads, this seams like a common issue ... but i've never read anywhere someone who fixed it, just questions and speculation.
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05-15-2019, 12:19 PM | #7 |
AKA: jeepnski
Join Date: Sep 2002
Location: Pittsburgh, PA
Posts: 16,864
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05-15-2019, 08:52 PM | #8 |
Needs moar dagger
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Infrared temp guns are so 2000s. Got to step your game up to a thermal imager.
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05-16-2019, 06:54 AM | #9 | |
AKA: jeepnski
Join Date: Sep 2002
Location: Pittsburgh, PA
Posts: 16,864
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Quote:
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05-16-2019, 01:50 PM | #10 |
old and boring
Join Date: Mar 2003
Posts: 34,047
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I agree and was skeptical the first time I heard it also....but I've seen it fix the issue as have some other very knowledgeable friend. I actually have an issue with rear brakes dragging on my Jeep and that was one of the first things I checked/replaced. In my case it looks to be caliper related though.
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05-16-2019, 03:10 PM | #11 |
Turd Ferguson
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Aren't the rubber hoses still steel lined? I'd heard that as they get old they can kink/collapse, with the inner part acting as a one way valve.
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05-16-2019, 03:44 PM | #12 |
old and boring
Join Date: Mar 2003
Posts: 34,047
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Yes there's still steel mesh supporting them. And the one way valve effect would make sense for a kink or broken down inner lining. There's very high pressure forcing fluid to the pistons, but very little forcing it back out.
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05-17-2019, 06:07 AM | #13 |
Senior Member
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It's not a truck, but our GM vehicle eats through rear pads too, it has 77k miles, I just put the 4th set of pads/rotors on in the back. The fronts are still the original pads, so we aren't hard on the brakes. The outer pad on both sides of the rear was worn to the replacement indicator thing, while the inner ones were still about 50%, same story every time. The calipers slide freely on the brackets, so I'm not sure what would cause it.
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05-17-2019, 06:56 AM | #14 | |
AKA: jeepnski
Join Date: Sep 2002
Location: Pittsburgh, PA
Posts: 16,864
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Quote:
i'll assume since it's an issue with the entire back, that it's in the drop line to the axle. but what do you guys think about just replacing ALL soft lines? uuugghh ... i don't have my flaring tool when this goes bad. |
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05-17-2019, 07:20 AM | #15 |
Senior Member
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From what I have heard, it does seem to generally be the drop line to the axle. But, while you're in there and the system is empty, why not replace them all, the cost should be minimal.
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05-17-2019, 08:23 AM | #16 |
AKA: jeepnski
Join Date: Sep 2002
Location: Pittsburgh, PA
Posts: 16,864
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once i get these cheapo pad/rotors to live more than a few k, ill go back to trying real compounds.
you sure he doesn't have a hose issue too? i've had great luck with green stuff when all else is working proper. |
05-17-2019, 08:24 AM | #17 |
AKA: jeepnski
Join Date: Sep 2002
Location: Pittsburgh, PA
Posts: 16,864
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05-17-2019, 11:45 PM | #18 |
Needs moar dagger
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I have fixed several dragging brakes with soft lines.
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05-20-2019, 07:38 AM | #19 |
AKA: jeepnski
Join Date: Sep 2002
Location: Pittsburgh, PA
Posts: 16,864
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