Front end grinding noise
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Rep Power: 117 Front end grinding noise
I have an intermitent grinding noise from the front end of my car 06 Civic EX. At first I thought it was brake related. I have purchased and maticulously installed high end ceramic pads, cross drilled and slotted rotors. The grinding sounds sounds like metal on metal. It makes this noise randomly sometime while turning, braking or at highway speeds. It comes and goes randomly, but is more notable on rough or bumpy roads. Seems more likely suspension related, any ideas about the source / solution or experience with this type of problem?
#2
If you think a good mechanic is expensive, try hiring a bad one
Re: Front end grinding noise
You realize it's hard as hell to check that out over the internet, right?
Backing plate rub on a rotor?
Backing plate rub on a rotor?
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Rep Power: 117 Re: Front end grinding noise
The stock pads had a shim behind each pad as did the after market ceramic pads. At the Honda dealer the shim set had 6 pads for the front, 2 on 1 side and 1 on the other for each wheel. I got the parts guy to print out the diagram. Seems like they made a change after production due to problems likely. I'll report back after this date.
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Rep Power: 117 Re: Front end grinding noise
Ya just looking for ideas. Thanks finally a response. I will check this when I I dig back into it on 12/06. I will jack the whole front end up and rotate the wheels and check for this with a hallogen light.
The stock pads had a shim behind each pad as did the after market ceramic pads. At the Honda dealer the shim set had 6 pads for the front, 2 on 1 side and 1 on the other for each wheel. I got the parts guy to print out the diagram. Seems like they made a change after production due to problems likely. I'll report back after this date.
The stock pads had a shim behind each pad as did the after market ceramic pads. At the Honda dealer the shim set had 6 pads for the front, 2 on 1 side and 1 on the other for each wheel. I got the parts guy to print out the diagram. Seems like they made a change after production due to problems likely. I'll report back after this date.
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Rep Power: 117 Re: Front end grinding noise
I verified that the backing plate isn't touching / rubbing on the rotor. I also verified that the new rotors are not warped by checking the both surfaces with a dial indicator. I replaced the pad shims that came with the aftermarket ceramic pads with the new Honda shim set, 3 shims for each front wheel. I also replaced the pad clips 2 per front wheel. There were minor wear marks on these pads. I also lightly filed the top and bottom metal part of the pads, and rough edges on the pads themselves.
What is the trick to posting photos I had some related to this post that I wanted to post but they are 2.2 mg jpegs. I see the limit for this file type size is 100kb?
#6
If you think a good mechanic is expensive, try hiring a bad one
Re: Front end grinding noise
The grinding sound is reduced but unfortunately not eliminated. See attached pdf illustration file.
What is the trick to posting photos I had some related to this post that I wanted to post but they are 2.2 mg jpegs. I see the limit for this file type size is 100kb?
What is the trick to posting photos I had some related to this post that I wanted to post but they are 2.2 mg jpegs. I see the limit for this file type size is 100kb?
Upload your pics to that site.
Copy the link to the image you want ("direct" link, in this format: https://i.imgur.com/XDumOeN.gifv)
Click this icon () in the bar at the top of the reply text pane.
A small window should pop up
Paste the link to the image in that popup. Click OK.
This also works to hotlink images from almost any other website.
#7
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Rep Power: 117 Re: Front end grinding noise
Thanks for the IT Support ezone.
Find a pic hosting site like tinypic or one of the many out there. I use imigur.com, myself.
Upload your pics to that site.
Copy the link to the image you want ("direct" link, in this format: https://i.imgur.com/XDumOeN.gifv)
Click this icon () in the bar at the top of the reply text pane.
A small window should pop up
Paste the link to the image in that popup. Click OK.
This also works to hotlink images from almost any other website.
Upload your pics to that site.
Copy the link to the image you want ("direct" link, in this format: https://i.imgur.com/XDumOeN.gifv)
Click this icon () in the bar at the top of the reply text pane.
A small window should pop up
Paste the link to the image in that popup. Click OK.
This also works to hotlink images from almost any other website.
Last edited by 06 EX Mild Mods; 12-16-2014 at 08:52 PM. Reason: Removing duplicate photo
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Rep Power: 117 Re: Front end grinding noise
[IMG][/IMG] Indicator rotor run out check
Worn and new greased pad clips
My best guest is that the aftermarket pad sizes is slightly off allowing them to move around in on the pad clips located in the pad notches, such that the pads aren't touching flat against the rotor at random times during braking and non breaking situations. Any other ideas?
Worn and new greased pad clips
My best guest is that the aftermarket pad sizes is slightly off allowing them to move around in on the pad clips located in the pad notches, such that the pads aren't touching flat against the rotor at random times during braking and non breaking situations. Any other ideas?
Last edited by 06 EX Mild Mods; 12-16-2014 at 09:01 PM. Reason: Addition of photos, captions and comment
#9
If you think a good mechanic is expensive, try hiring a bad one
Re: Front end grinding noise
That control arm bushing looks bad.
Thanks for the IT Support ezone.
You don't need the [IMG] tags when pasting your http:// links into the popup box.
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Rep Power: 117 Re: Front end grinding noise
Ezone - Good Eagle eye, yes it does, I noted this possible need back in May when doing a tire rotation, but it looks worse now. Thanks I will skip the [IMG] tags. I continue to talk to people I know that work on cars trying to figure this problem out. One proposed ideas that seems feasible is a sticking caliber piston, (#10 in the PDF attached illustration) that causes the pads to touch unevenly to the rotors or not retract away from the rotors evenly after braking. Do you have any experience with this type of problem? BTY what is your occupation are you a long time Honda Mechanic?
#11
If you think a good mechanic is expensive, try hiring a bad one
Re: Front end grinding noise
I could see the bushing issue there but I sure can't SEE your noise LOL
I continue to talk to people I know that work on cars Try finding the people that fix cars.
Nope IMO. That would make the brakes drag, (and get hot, depending on how much pressure is applied) and wear out the pads fast. It wouldn't sound any different than normal braking.
And pads almost always lay against the rotors to some extent, they very rarely pull away far enough to make zero contact unless there are springs on the pads and everything is brand new.
Sure. I solve problems for a living.
It's damn tough to chase noises over the internet though.
If I told you, I'd have to kill you.
I continue to talk to people I know that work on cars
One proposed ideas that seems feasible is a sticking caliber piston, (#10 in the PDF attached illustration) that causes the pads to touch unevenly to the rotors or not retract away from the rotors evenly after braking.
And pads almost always lay against the rotors to some extent, they very rarely pull away far enough to make zero contact unless there are springs on the pads and everything is brand new.
Do you have any experience with this type of problem?
It's damn tough to chase noises over the internet though.
BTY what is your occupation are you a long time Honda Mechanic?
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Rep Power: 117 Re: Front end grinding noise
I could see the bushing issue there but I sure can't SEE your noise LOL
Try finding the people that fix cars.
Nope IMO. That would make the brakes drag, (and get hot, depending on how much pressure is applied) and wear out the pads fast. It wouldn't sound any different than normal braking.
And pads almost always lay against the rotors to some extent, they very rarely pull away far enough to make zero contact unless there are springs on the pads and everything is brand new.
Sure. I solve problems for a living.
It's damn tough to chase noises over the internet though.
If I told you, I'd have to kill you.
Try finding the people that fix cars.
Nope IMO. That would make the brakes drag, (and get hot, depending on how much pressure is applied) and wear out the pads fast. It wouldn't sound any different than normal braking.
And pads almost always lay against the rotors to some extent, they very rarely pull away far enough to make zero contact unless there are springs on the pads and everything is brand new.
Sure. I solve problems for a living.
It's damn tough to chase noises over the internet though.
If I told you, I'd have to kill you.
#13
If you think a good mechanic is expensive, try hiring a bad one
Re: Front end grinding noise
Well that's always the intent to fix cars
any experience with anti lock brake systems that might cause this grinding sound?
Texas? Probably don't get much snow and ice there huh?
Try to make the car skid in loose gravel. The grind noise is the ABS pump motor, and the pedal vibration you will get are the ABS system operating the brake hydraulic system. That's the only sort of noise ABS can make when it operates.
could be the emergency brakes
or the CV axles. In the past the CV axles make a clicking sound when doing slow figure 8's in a parking lot,
but maybe they can also make this intermittent grinding noise.
Still dealing with this @#$% problem,
Locate the general area of the noise, left, right, front, rear?
Sound louder with the windows up or down?
Chassis ears?
#14
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Rep Power: 117 Re: Front end grinding noise
See indented comments. How do you do the parsed quote responses?
Yeah.
Have you ever experienced an ABS stop?
Those are only in the rear.
Kinda doubt this will be the noise.
Record the noise?
Locate the general area of the noise, left, right, front, rear?
Sound louder with the windows up or down?
Chassis ears?
Have you ever experienced an ABS stop?
Yes, but haven't felt this pulsating vibration of the brake pedal during when it is making this grinding noise.
Texas? Probably don't get much snow and ice there huh?Usually more ice than snow about 3 times a season and it doesn't last long. I am originally from a hilly area in upstate NY so I've experience winter driving.
Try to make the car skid in loose gravel. The grind noise is the ABS pump motor, and the pedal vibration you will get are the ABS system operating the brake hydraulic system. That's the only sort of noise ABS can make when it operates.Those are only in the rear.
Haven't taken the back brakes apart yet as the pads are still thick. How does the emergency brake work and secondary mechanical caliper?
Is the noise in the rear?It sure sound like the front but as you've stated this can be tricky to determine at times.
The most common failure noise...Kinda doubt this will be the noise.
Record the noise?
Locate the general area of the noise, left, right, front, rear?
Sound louder with the windows up or down?
Louder with the windows down.
Thanks for the continued tips.Chassis ears?
#15
If you think a good mechanic is expensive, try hiring a bad one
#16
If you think a good mechanic is expensive, try hiring a bad one
Re: Front end grinding noise
Get a couple other professional observers in the car to help locate a general area of where the noise comes from.... One front, one in the rear seat. Everyone turn their heads sideways to determine front/rear (directional hearing LOL) left/right and floor/roof.
Yeah, roof. I did that to figure out a rattle in a sunroof once that everyone else swore was coming from anyplace but.
Yeah, roof. I did that to figure out a rattle in a sunroof once that everyone else swore was coming from anyplace but.
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Rep Power: 117 Grinding noise - Resolved!
Get a couple other professional observers in the car to help locate a general area of where the noise comes from.... One front, one in the rear seat. Everyone turn their heads sideways to determine front/rear (directional hearing LOL) left/right and floor/roof.
Yeah, roof. I did that to figure out a rattle in a sunroof once that everyone else swore was coming from anyplace but.
Yeah, roof. I did that to figure out a rattle in a sunroof once that everyone else swore was coming from anyplace but.
Recently I climbed in the trunk with a pillow with the back seat down and put my head near each rear wheel well. My brother drove around the neighbor hood with me mostly in the trunk. The noise was coming from the driver's side back wheel area.
It turned out to the be the pad wear indicator, although months back these pads looked like they had a lot of life left on them. I did a brake repair which has resolved this issue finally. Thanks for all the ideas they helped.
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