This was my first ever attempt to do brakes and I feel quite happy that I was able to do it all by myself with help from this site and youtube. I do have few questions about few things I noticed.
Corolla has 90.6K miles on it and these were still the original brake pads. I bought Duralast Gold CMax Ceramic ($49.99) pads from Autozone, which only came with grease (no other hardware). Here are few things I noticed and need your help:
1: Brake Pad Shims
The original brake pads were made of semi-metal and had two shims on them. Duralast pads seemed like already have built-in shim (black color with logo printed on it). I didn't try to remove it from the pad and just applied little grease on the top and installed it. I didn't install the two shims on the new pad.
Question: Was I suppose to install the two original shims on the new pad?
2: Pad Wear Sensor
I had also downloaded Brake Change section from Chilton Repair Manual from my local library Auto database. In the brake component diagram, it shows two brake pad wear sensors, one on each pad. My car had only one sensor per wheel and it was on the inner brake pad. Since I didn't have any extra or new ones to install, I just installed the two back on.
Question: Do I need to buy more and install one on each pad? Why did car had only one when diagram shows two?
Also about two months ago, it was driver side wheel that started making pad wear sensor noise. So sensor must have worn out some. Since I didn't have any new sensor, I just installed the old sensor back on.
Question: This may sound silly, but I am going to ask anyway. Is there any danger in installing the old (little worn out) sensor back on?
3.Passenger side Rotor
When I changed the driver side brake pads the rotor seemed fixed in place and unmovable. However, when I changed the passenger side brake pads rotor was loose, meaning I could move it by hand back and forward (on y-axis). And actually even on x-axis as space allowed within the caliper mount. That seemed odd to me, but I didn't do anything else other than to remove the tire and caliper nut. So, I just installed the new pads and put the tire back on.
Question: Is there something else that is loose or missing with rotor? Is rotor suppose to be loose like that? Why was one side fixed and one side loose?
4.Brake Pad Wear
Driver side inner pad seemed to have worn out more than the outer pad. Whereas on the passenger side both pads seem to have worn out evenly. Rotors looked fine to me and my car didn't give me shaky steering wheel when braking with old pads (at freeway speeds). So, I thought I don't need to machine them.
Question: What could be the reason and is there anything I need to do?
5. Brake Pedal Feel
After the brake pad change I drove the car around the block and it seems to brake fine but it seems like I have to press the pedal little more. I am not sure how to describe it but it feels little different. I did pump the brake pedal 4-5 times after changing pads and brake oil (still original oil) seems to be at good level.
Question: Is there something that I missed or need to do another adjustment to make it feel little more tight? Can you give me any tips on bedding-in brake pads?
If my questions seem little silly or from newbie and inexperienced person, please excuse me for that. This is my attempt and honestly I feel quite good for what I have accomplished. I would greatly appreciate your answers and thank you for your time.
Corolla has 90.6K miles on it and these were still the original brake pads. I bought Duralast Gold CMax Ceramic ($49.99) pads from Autozone, which only came with grease (no other hardware). Here are few things I noticed and need your help:
1: Brake Pad Shims
The original brake pads were made of semi-metal and had two shims on them. Duralast pads seemed like already have built-in shim (black color with logo printed on it). I didn't try to remove it from the pad and just applied little grease on the top and installed it. I didn't install the two shims on the new pad.
Question: Was I suppose to install the two original shims on the new pad?
2: Pad Wear Sensor
I had also downloaded Brake Change section from Chilton Repair Manual from my local library Auto database. In the brake component diagram, it shows two brake pad wear sensors, one on each pad. My car had only one sensor per wheel and it was on the inner brake pad. Since I didn't have any extra or new ones to install, I just installed the two back on.
Question: Do I need to buy more and install one on each pad? Why did car had only one when diagram shows two?
Also about two months ago, it was driver side wheel that started making pad wear sensor noise. So sensor must have worn out some. Since I didn't have any new sensor, I just installed the old sensor back on.
Question: This may sound silly, but I am going to ask anyway. Is there any danger in installing the old (little worn out) sensor back on?
3.Passenger side Rotor
When I changed the driver side brake pads the rotor seemed fixed in place and unmovable. However, when I changed the passenger side brake pads rotor was loose, meaning I could move it by hand back and forward (on y-axis). And actually even on x-axis as space allowed within the caliper mount. That seemed odd to me, but I didn't do anything else other than to remove the tire and caliper nut. So, I just installed the new pads and put the tire back on.
Question: Is there something else that is loose or missing with rotor? Is rotor suppose to be loose like that? Why was one side fixed and one side loose?
4.Brake Pad Wear
Driver side inner pad seemed to have worn out more than the outer pad. Whereas on the passenger side both pads seem to have worn out evenly. Rotors looked fine to me and my car didn't give me shaky steering wheel when braking with old pads (at freeway speeds). So, I thought I don't need to machine them.
Question: What could be the reason and is there anything I need to do?
5. Brake Pedal Feel
After the brake pad change I drove the car around the block and it seems to brake fine but it seems like I have to press the pedal little more. I am not sure how to describe it but it feels little different. I did pump the brake pedal 4-5 times after changing pads and brake oil (still original oil) seems to be at good level.
Question: Is there something that I missed or need to do another adjustment to make it feel little more tight? Can you give me any tips on bedding-in brake pads?
If my questions seem little silly or from newbie and inexperienced person, please excuse me for that. This is my attempt and honestly I feel quite good for what I have accomplished. I would greatly appreciate your answers and thank you for your time.