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Isuzu Axiom Brake Problems

22 messages,  Last post on Nov 21, 2009 at 9:19 AM

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#19 of 22 Isuzu Axiom Brake Problems Difficult/Impossible to Resolve by walk_the_walk2 Jul 02, 2009 (6:20 pm)
I respectfully disagree with rchaynes posting #18, and this problem is much more difficult to resolve than simply resurfacing rotors, or replacing rotors (which I have also done myself personally), or adjusting the, or replacing brake pads. I have done all of those tasks more than once and still have recurrences of the noise problem. I have posted this and more under the maintenance section, but will repost again here for the benefit of those with brake problems:   *************************   From June 9, 2009:   As my prior postings have detailed, I have struggled for a couple of years now, or the last 50,000 miles, whichever you like, with noisy brake problems and rotor problems.    I solved half of the problem last summer, when my friend and I replaced the original OEM rotors (which had warped for the 2nd time) with some drilled and slotted high temp rotors that I bought from SummitRacing.com to fit my vehicle. That cured any issue with rotors getting too hot and warping.    However, it did not get rid of the squalling noise that the brakes make, especially when you first apply the brakes the first time, or on any downhill braking situation, and at other times at random.    So, tired of the problem, I took it back to a good mechanic, who took the front and rear brakes apart, cleaned them, readjusted the rear brakes and lubbed the backing plate for the brake shoes (which oddly at 94000 miles did not need replacing yet), and then deglazed the front pads (which are only about 8 months old). They also used some special product made by B& J that reduces pad noise. (I do not have the name of the product).    I can say that the past few days have been wonderful. No more brake noise. I suspect that the problem all along was that the rear brakes were not doing what they should have been and the front brakes were doing most of the work, which led to excessive heat, rotor warping and pulsation, noise and glazed front pads.    I would also speculate that since this is a somewhat heavy vehicle (4700 lbs) that others are having the same problem and do not know what it takes to get it fixed. The racing rotors were a big help, but ultimately a cleaning and adjustment was also needed to fully resolve the problem.    Hope that helps.   *************************   From June 30th:   I spoke too soon. The problem has come back again 2 weeks later, at least in part. The brakes still squall (I think that is the right descriptor) when you first apply them, until the rotors get wiped clean. After that, they can squall again under certain circumstances. While the cleaning and adjusting helped a great deal, the problem is anything but gone.    Someone suggested that I rebuild the calipers. I bought the parts; have the instructions; it looks easy enough, but I am squeamish about doing it. Anyone else noticing this annoying problem? Any ideas?   *********************************************************   Keep in mind that I have brake pads that are less than a year old and racing rotors that are high temp, drilled and slotted from SummitRacing.com and are not warped! Replies to this message: walk_the_walk2 (Oct 06, 2009 1:31 pm)
#20 of 22 Re: Isuzu Axiom Brake Problems Difficult/Impossible to Resolve [walk_the_walk2] by walk_the_walk2 Oct 06, 2009 (1:31 pm)
Replying to: walk_the_walk2 (Jul 02, 2009 6:20 pm) My brake noise problems continued. But, when chatting with a counter clerk at the local Carquest parts store, he suggested I get rid of the Advanced (formerly Discount Auto) Parts aftermarket brake pads that I was using (which were making lots of dust on my front wheels) and get Akebono pads, which have built in anti-squeal plates.   The Akebono pads, he told me, were a better match for the drilled and slotted (dare I say warp-proof) rotors which I bought from Summitracing.com, that I installed about 18 months ago now.   The new pads are great. With only one week to go on so for, the noise problem is gone. But, the real proof will be if I can go 4 or 5 weeks without the squalling noise coming back. It seemed to be humidity related, and pad-related.   Beware - the manufacture date of an 02 Axiom is critical. Mine was built in April 2002 and uses the same pads as the 03 Axiom, but not the same pads as the early 02 Axiom, which is why I got the wrong EBC pads when I ordered online.   Here is a picture of the Akebono Proact pads I am using. Expensive ($70/set) but well worth it. They are low dust, low noise ceramic pads.   Akebono Pads Brochure PDF   So, if this works, the final solution set for the Axiom brakes noise problem is to get warp-proof drilled and slotted racing rotors and high quality pads like the Akebono, and replace the useless OEM parts. Also, beware of the cheap aftermarket pads and rotors. If your rotors are warped - buy new ones and replace them - don't waste money getting them resurfaced - they will simply warp again a few weeks later.">link title
#21 of 22 Axiom Brake Pads by bertbcfm Nov 21, 2009 (8:14 am)
Was just at the Isuzu dealer and the service guy said there was a problem with the inner pads absorbing moisture and causing problems like high wear and rotor warping. Could be one of the issues and I bet buying premium pads is a solution.   Regards Bert Replies to this message: walk_the_walk2 (Nov 21, 2009 9:19 am)
#22 of 22 Re: Axiom Brake Pads [bertbcfm] by walk_the_walk2 Nov 21, 2009 (9:19 am)
Replying to: bertbcfm (Nov 21, 2009 8:14 am) My front brakes are better now with the new premium Akebono pads and the drilled, slotted racing rotors installed about 18 mos ago. But, even so, I still get some noise regularly, and YES, it does seem to be related to humidity. It happens usually the first couple of times I brake. The problem takes about a month to occur after new pads are installed, so don't let a dealer tell you that new pads will solve it. It just comes back.   So, even with the new pads, the problem was not fixed, but it is improved about 75%. My guess is that there is a common problem with the Axiom brakes, which would probably warrant a safety recall. If the brakes are getting moist, I have to wonder if there is reduced braking power during that first braking event.   Still, for those who want to REDUCE this problem - drilled and slotted rotors do not warp and the premium Akebono pads I used help, and do not generate dust.

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