Yev wrote:Hi, everyone. I am aware that a similar thread regarding premature brake pad wear was posted, but my issue is slightly different. I purchased my 2008 Rogue in September of 2012. The dealership sold the car to me with the existing pads - 4mm on the rear and 6mm on the front. In December of 2012, I replaced my rear pads with Hawk Ceramic pads (HB600Z.539 --> 0.539 inches of compound thickness). The pads were installed and the rotors were machined by a friend who is a mechanic. Recently, I started hearing an intermittent screeching noise from the rear-passenger pad. I asked my friend to take a look and he confirmed that a raised line of rotor material was causing the screeching. I even ran my fingers across the rotor and noticed the difference. He also mentioned my rear pads had ~6mm of compound remaining. Now here is my question, how on earth, unless he did not measure, could my rear pads wear out more than 50% in 3 months? I should probably add that I don't drive regularly - low KM. He also confirmed that nothing is seized and even I don't notice any resistance or brake contact when driving. I did further research and found this article:
http://trueler.com/2010/09/09/nissan-in ... ut-defect/. Is anyone experiencing a similar issue?
since this is a detailed question, i am going to structure my reply in segments. i moved your thread, to the existing brake pads & rotors chatroom. its a common problem, so it belongs in the specified chatroom.
having raced my bike on the track, one of the first few things you learn and realize is horsepower and engine performance means nothing if you cant stop. brakes are a lot more intricate and extensive than many give them credit for. brakes are not all equal, and need to be replaced with like styled components. for example: your 1st mistake was ordering brand new, slightly more aggressive pads; for stock rotors that were weakened by being machined.(more on that later, below)
1. what you are experiencing could be the common problem other have, in models across the nissan brand. (since we share the rear brakes with the G35, and a couple other cars.)
2. brake rotor "scoring" happens due to many reasons. one of which could be caused for overly aggressive pads coupled with weaker rotors. if the pads are too aggressive or too hard of a compound, then they are stronger than the rotors - thus causing scoring. also, if your rotors where machined; they are now thinner, more easily pliable, and all around weaker. adding an aggressive brake pad will in fact score them even faster. furthermore dirt trapped, can cause scoring. poorly vented pads can cause scoring. REPLACE YOUR ROTORS to make sure as you go along the process of elimination.
3. when you replaced your pads, was a proper bleeding procedure done on your vehicle? nissan is known for having rear brake calipers that begin to experience seal failure in the calipers, thus ingesting moisture, water, debris, and AIR. a tiny air bubble in the braking system will expand the pressure in the lines and double within 2-3 second of the brake pedal being depressed. that swelled bubble will stay there causing the braking pressure to rise, activating the closest caliper. it might not be enough pressure for you to feel, but a brake pad slightly making contact with the rotor will rise in temps, and going beyond its operating temps, and literately wear off before you know it. BLEED YOUR LINES to make sure as you go along the process of elimination.
4. has your friend inspected the e-brake/parking brake cable to make sure its not snagged, nor getting snagged?
5. did your friend inspect the vacuum line coming from the master cylinder?
6. ceramic pads eat rotors. its that simple. The easiest explanation for this is to think of sand paper. You use coarse(ceramic pad) for removing paint, while using ultra fine(organic) for polishing paint. Brake pads are exactly the same. Look at some metallic brake pads and see the size of the wire and steel particles in the mix.
7. i would make sure all your calipers are in perfect operating order.
8. now a days cars apply the rear pads first, to help steady the suspension prior to preloading the front suspension. it helps trail braking, while cornering.
9. its not uncommon for pads sometimes to wear quickly. it happens. could be a bad batch. i have heard of very high performance brakes that too failed, glazed over - and didnt stop at all. thats life.
10. light scoring is PERFECTLY normal. there is not a single car with more than 1000 miles that wont have scoring on the rotor.
PS: if you are looking to read into brake rotors, visit my writeup here:
post6346778.html#p6346778