Brake Pad Change...Unhappy :X
09-28-09, 11:52 PM
#32
After a week driving with the Hawk ceramics I'm not happy. I mean, the stopping power is quite good, I'd say as good as OEM, no squeaking, and no brake dust! But I can see the same problem that caymandive had with his ceramic pads some time ago.
Check out these pictures taken today, I can see hot spots on my rotors (not warped though), and the pads don't come into contact with the rotors 100%. I sent an email to Hawk, I hope I can have a solution soon.
Check out these pictures taken today, I can see hot spots on my rotors (not warped though), and the pads don't come into contact with the rotors 100%. I sent an email to Hawk, I hope I can have a solution soon.
Hope you guys resolve your issues....Sam homie where are the PICS
10-07-09, 10:16 PM
#35
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Just a side note, do you guys know there is actually a TSB about the factory brake pads?
It's one of those "you have to complain about it" in order for it to be dealt with and for them to acknowledge the TSB. A lot like the alignment TSB....
TSB is in regards to brake noise and squeal. Pads are replaced with a different pad that has a changed leading edge.
Just thought you all should know. My F had the pads replaced by the dealer.
It's one of those "you have to complain about it" in order for it to be dealt with and for them to acknowledge the TSB. A lot like the alignment TSB....
TSB is in regards to brake noise and squeal. Pads are replaced with a different pad that has a changed leading edge.
Just thought you all should know. My F had the pads replaced by the dealer.
10-07-09, 10:28 PM
#36
Just a side note, do you guys know there is actually a TSB about the factory brake pads?
It's one of those "you have to complain about it" in order for it to be dealt with and for them to acknowledge the TSB. A lot like the alignment TSB....
TSB is in regards to brake noise and squeal. Pads are replaced with a different pad that has a changed leading edge.
Just thought you all should know. My F had the pads replaced by the dealer.
It's one of those "you have to complain about it" in order for it to be dealt with and for them to acknowledge the TSB. A lot like the alignment TSB....
TSB is in regards to brake noise and squeal. Pads are replaced with a different pad that has a changed leading edge.
Just thought you all should know. My F had the pads replaced by the dealer.
-Kevin
10-07-09, 10:31 PM
#37
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I'll see if I can look it up on the paperwork. Remind me in the morning if I forget to do so.
Was a TSB on several model IS's as is the alignment TSB but only if dealt with in the first 12 months or 20K miles.
Was a TSB on several model IS's as is the alignment TSB but only if dealt with in the first 12 months or 20K miles.
10-07-09, 10:33 PM
#38
-Kevin
10-07-09, 11:13 PM
#39
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No problem. Surprising how many of these TSB's are out there and they require the customer to "complain" before they do anything about it.
That's big business though I guess.
That's big business though I guess.
10-08-09, 06:42 AM
#40
Just a side note, do you guys know there is actually a TSB about the factory brake pads?
It's one of those "you have to complain about it" in order for it to be dealt with and for them to acknowledge the TSB. A lot like the alignment TSB....
TSB is in regards to brake noise and squeal. Pads are replaced with a different pad that has a changed leading edge.
Just thought you all should know. My F had the pads replaced by the dealer.
It's one of those "you have to complain about it" in order for it to be dealt with and for them to acknowledge the TSB. A lot like the alignment TSB....
TSB is in regards to brake noise and squeal. Pads are replaced with a different pad that has a changed leading edge.
Just thought you all should know. My F had the pads replaced by the dealer.
Lou
10-08-09, 09:54 AM
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Juanca, I have these pads as well and complained to Doug at Lexus of Dayton about a week after I had them installed (and they did the install).... I never noticed the rust ring near the hub, nor the grooving with the old pads...it was like the hawks didn't cover the surface of the rotor completely. I took pics and sent to him...he told me he got a pair of the OEM's and laid them on top of Hawks and they were the same exact size...he sent the pics to the Hawk rep and the rep said this was normal....I left it alone but really didn't feel the pads were "right", but then again, I questioned myself as I thought maybe it was always there and I just never noticed before...
These Hawks are quiet, dust less and that's what I wanted...but if there is a TSB on squeaky pads I'm going to be ticked as that was all I was tying to cure and it cost me 400.00.
BTW, Hawk pad owners, Doug is asking for feedback on these pads...lexusf.com., in the supporting vendor section.
These Hawks are quiet, dust less and that's what I wanted...but if there is a TSB on squeaky pads I'm going to be ticked as that was all I was tying to cure and it cost me 400.00.
BTW, Hawk pad owners, Doug is asking for feedback on these pads...lexusf.com., in the supporting vendor section.
10-08-09, 09:59 AM
#42
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I do not know the Vin's covered by the TSB. When I look at the paperwork it shows the work performed but is not mentioning the TSB #. I have a call in to the service manager at Lexus and waiting on a call back on that one.
10-08-09, 11:10 AM
#43
Hey mondo, I've been discussing this problem directly with Hawk, there have been emails back and forth, but after providing details as well as pictures it seems like they don't care, last time I heard from them was a full week ago.
I know the pads are the same size and shape as OEM, but for some reason they don't make contact completely. My guess is that they flex at the lower area, maybe too soft? Three things though: they're quiet, dust is minimal, and they have great stopping power, BUT I hate that rust ring on my rotors!!!
I think you should complain to Hawk, if you want I can PM you the contact info.
I know the pads are the same size and shape as OEM, but for some reason they don't make contact completely. My guess is that they flex at the lower area, maybe too soft? Three things though: they're quiet, dust is minimal, and they have great stopping power, BUT I hate that rust ring on my rotors!!!
I think you should complain to Hawk, if you want I can PM you the contact info.
Juanca, I have these pads as well and complained to Doug at Lexus of Dayton about a week after I had them installed (and they did the install).... I never noticed the rust ring near the hub, nor the grooving with the old pads...it was like the hawks didn't cover the surface of the rotor completely. I took pics and sent to him...he told me he got a pair of the OEM's and laid them on top of Hawks and they were the same exact size...he sent the pics to the Hawk rep and the rep said this was normal....I left it alone but really didn't feel the pads were "right", but then again, I questioned myself as I thought maybe it was always there and I just never noticed before...
These Hawks are quiet, dust less and that's what I wanted...but if there is a TSB on squeaky pads I'm going to be ticked as that was all I was tying to cure and it cost me 400.00.
BTW, Hawk pad owners, Doug is asking for feedback on these pads...lexusf.com., in the supporting vendor section.
These Hawks are quiet, dust less and that's what I wanted...but if there is a TSB on squeaky pads I'm going to be ticked as that was all I was tying to cure and it cost me 400.00.
BTW, Hawk pad owners, Doug is asking for feedback on these pads...lexusf.com., in the supporting vendor section.
10-08-09, 01:00 PM
#44
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Would like to throw my 2 cents in on your brake problems. A brake squeel is caused by a harmonic vibration. Cause in most cases is replacing pads and not turning the brake rotors. As pads wear in most cases, a small amount of uneven wear occurs on the rotor surface. With new pads being perfectly flat, put on an uneven rotor surface the pad makes contact only with the highest points on the rotor. This leads to a very small contact point in several places and causes overheating of the friction material in those places, or glazing. Turning rotors does 2 things. Removes any lateral run out or warpage, and gives the new pads a smooth even surface to bed into. IS-F rotors have a new thickness of 1.180 and discard thickness of 1.110. Most rotor surfaces can be cleaned up by removing .005 to .010 of material per side. Given normal wear these rotors should be thick enough to be turned 1 and maybe 2 times.
When the brake pads are installed, use caliper grease between the shims and pads, all points where the pad backing contacts the caliper, and a small amount can even be placed where the pistons contact the pad. Not sure what the oem friction material is, but as a rule ceramic pads should not make any noise, and reduce dusting. Hope this helps.
One other thing. When seating the caliper pistons back into the bores, it is best to open the bleeder and let the fluid escape there instead of pushing it back thru the system into the master cylinder.
When the brake pads are installed, use caliper grease between the shims and pads, all points where the pad backing contacts the caliper, and a small amount can even be placed where the pistons contact the pad. Not sure what the oem friction material is, but as a rule ceramic pads should not make any noise, and reduce dusting. Hope this helps.
One other thing. When seating the caliper pistons back into the bores, it is best to open the bleeder and let the fluid escape there instead of pushing it back thru the system into the master cylinder.
Last edited by GreggW; 10-08-09 at 02:04 PM.
10-08-09, 02:54 PM
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Would like to throw my 2 cents in on your brake problems. A brake squeel is caused by a harmonic vibration. Cause in most cases is replacing pads and not turning the brake rotors. As pads wear in most cases, a small amount of uneven wear occurs on the rotor surface. With new pads being perfectly flat, put on an uneven rotor surface the pad makes contact only with the highest points on the rotor. This leads to a very small contact point in several places and causes overheating of the friction material in those places, or glazing. Turning rotors does 2 things. Removes any lateral run out or warpage, and gives the new pads a smooth even surface to bed into. IS-F rotors have a new thickness of 1.180 and discard thickness of 1.110. Most rotor surfaces can be cleaned up by removing .005 to .010 of material per side. Given normal wear these rotors should be thick enough to be turned 1 and maybe 2 times.
When the brake pads are installed, use caliper grease between the shims and pads, all points where the pad backing contacts the caliper, and a small amount can even be placed where the pistons contact the pad. Not sure what the oem friction material is, but as a rule ceramic pads should not make any noise, and reduce dusting. Hope this helps.
One other thing. When seating the caliper pistons back into the bores, it is best to open the bleeder and let the fluid escape there instead of pushing it back thru the system into the master cylinder.
When the brake pads are installed, use caliper grease between the shims and pads, all points where the pad backing contacts the caliper, and a small amount can even be placed where the pistons contact the pad. Not sure what the oem friction material is, but as a rule ceramic pads should not make any noise, and reduce dusting. Hope this helps.
One other thing. When seating the caliper pistons back into the bores, it is best to open the bleeder and let the fluid escape there instead of pushing it back thru the system into the master cylinder.