G35 Test Drive and I30 Problem (Long)

[BLBRIZZI]

Okay, so it's more than a test drive, you see I have a G35 loaner until tomorrow. Here's the story. I call up my local Infiniti dealer today because my back brakes are making noise, which they also did about 19,000 miles ago, kinda quick for rear brakes to go out if you ask me. My front brakes lasted twice as long. So anyway I'm talking to the dealer, and he says it happens on occasion that the rear brakes go faster than the front on some cars, I'm thinking Bullsh**, never had that happen before on a front wheel drive car. Anyway I tell him about the TSB for the rear brakes making a humming noise when I let off the brake, up til about 5mph, he comments that since I didn't have the rotors turned last time, that could be the cause of my brakes going quicker than normal, my thought is that the rotors have nothing to do with the car when the brake is released, am I wrong? If so, it won't be the first time. Now for the test drive: Car is great, seems to have a lot of torque even in the low rpm range. I wish the seats were a little more plush, but I have always liked overstuffed leather. My wife commented while riding with me, that I was jerking her head too much when I took off in manual mode, but boy can it fly. I turned off the VDC (is that right?) doesn't this allow for more torque without the car's computer kicking in to keep the car more stable? The reason I get to keep the car til tomorrow is that it was kinda late when they started working on my I30t, and I had a wedding to attend to, so by the time they finished I was on my way to the wedding and reception afterward. Glad I finally got to take the car for a "real" test drive without the dealer riding with me. One last thought, I wish it had a little more room inside, with a growing family I would need it.

Brent

[lessthanjakejohn]

[quote=" BLBRIZZI [BAnyway I tell him about the TSB for the rear brakes making a humming noise when I let off the brake, up til about 5mph, he comments that since I didn't have the rotors turned last time, that could be the cause of my brakes going quicker than normal, my thought is that the rotors have nothing to do with the car when the brake is released, am I wrong? [/quote]

I think it would most likely from not turning your rotors. I'm not sure about your car but on some the brake pade stays in light contact with the rotor when the brake is released.

**Just because your brakes are making a squeeling noise doesn't mean they are "out", it just means you replaced your pads and didn't turn your rotors, or need to replace pads and turn rotors. They will still work fine, but are just annoying as hell and sound wrong**

**Im about 70% sure on that info

[BLBRIZZI]

I think it would most likely from not turning your rotors. I'm not sure about your car but on some the brake pade stays in light contact with the rotor when the brake is released.

I wonder, but the problem happens when I'm stepping on the gas, no brake, or emergency brake on. Dealer told me that it's possible that the emergency brake cable may be too tight, and is not completely releasing, that's supposedly what the TSB was for. Their taking care of the TSB under warranty, and replacing the rear pads, the pads will come out of my pocket even though I'm sure the problem was because of the TSB, and not the fact that the rotors weren't turned. If it was the front brakes, I would have been more concerned about the rotors.

**Just because your brakes are making a squeeling noise doesn't mean they are "out", it just means you replaced your pads and didn't turn your rotors, or need to replace pads and turn rotors. They will still work fine, but are just annoying as hell and sound wrong**

**Im about 70% sure on that info

Well, I get to find out soon enough what's wrong, as I will be picking it up tomorrow, hopefully the humming sound will be gone.

Brent

[autotech43]

Regarding the TSB. There are several things the apply to that bulletin. First is to replace both rear parking brake cables, reason being some of them had a tendency to stick and cause the rear brake pads to have a light pressure on the rotors. The other thing we do, replace the brake pad hardware with a new type of spring clips which helps the rear pads stay away from the rotor after releasing the brake pedal. In most cases I have seen, machining the rear rotors was needed due to the pad dragging caused the rotor to overheat and either have hot spots, also the rotor might be bluish in color from being overheated. The final step, after all of the above was performed, you adjust the parking brake cable. In some cases, warranty did take care of the repair, but not always. You shouldnt have any problems if they apply the complete TSB to your vehicle.

[BLBRIZZI]

Regarding the TSB. There are several things the apply to that bulletin. First is to replace both rear parking brake cables, reason being some of them had a tendency to stick and cause the rear brake pads to have a light pressure on the rotors. The other thing we do, replace the brake pad hardware with a new type of spring clips which helps the rear pads stay away from the rotor after releasing the brake pedal. In most cases I have seen, machining the rear rotors was needed due to the pad dragging caused the rotor to overheat and either have hot spots, also the rotor might be bluish in color from being overheated. The final step, after all of the above was performed, you adjust the parking brake cable. In some cases, warranty did take care of the repair, but not always. You shouldnt have any problems if they apply the complete TSB to your vehicle.

Okay, here is what they did to my car:

Replace both E Brake cables, and hardware.

Cable-Brk rr LH-36531-1L005

Cable-Brk rr RH-36530-1L005

Spring Retainer Kit-44083-4u025

The factory was charged $211.45 for the work, $124.89 for labor, and $86.56 for parts. I think it sounds right for what you said. Although I don't see mention of them adjusting the parking brake cable, maybe this is something done without mentioning of it. Also, should they have caught this the first time when I told them the rear brakes were humming? Or is this TSB rare enough that they could have missed it.? Thanks for your reply, I just wanted to know that they did the needed work this time, which it appears they did.

Brent

[autotech43]

Appears they performed the TSB correct, as far as the adjustment of the parking brake, very few vehicles require the parking brake adjustment, that is mentioned in the TSB to check. I'm glad they took care of things for you.