Is it true that the rotor problem is fixed on Titan and Armada?

pest44 · Oct 24th, 2004, 12:46 PM

The service manager for one of our local Nissan dealerships told me that Nissan has remedied the problem with warped rotors on the Titans and Armadas. He said that new calipers and rotors have fixed it 100%. Is this true?

1997XETruck · Oct 25th, 2004, 12:24 AM

Ask him if you can get a copy of the TSB that addresses this! I'd be interested to know what they did. My guess is thicker rotors - thus the need for wider calipers. The only TSB summary I can find at www.nissan-techinfo.com is:

Quote:

NTB04066

IF YOU CONFIRM: While braking, especially when braking at highway speeds: · A steering wheel shake, · Body vibration, or · Brake pedal pulsation (also known as "brake judder"). ACTIONS: Use the ProCut™ PFM Series on-car brake lathe to "turn" (resurface) the front brake rotors. Install the new brake caliper Torque Member-use new torque member bolts. Install the new Sliding Pin Kit. Install the new front brake pad kit, which includes new "coated" pad retainers. Burnish" the brake pads. See this bulletin for further detail.

I'm not sure if it goes in to more detail in the full TSB or not... I'm also not sure what a "brake caliper Torque Member" is, but I suspect it may be the half of the caliper that contains the pistons?

Nissan has skimped on brakes since the late 1980's when they designed my model of Q45... it would be awesome to see them actually fix it once! Interestingly, my truck's brakes are fine... same with the Maximas we've owned - so maybe it's just on the heavier vehicles?

Heath

jadcock · Oct 25th, 2004, 06:30 AM

Quote:

Originally Posted by 1997XETruck

Interestingly, my truck's brakes are fine... same with the Maximas we've owned - so maybe it's just on the heavier vehicles?

Heath, I've also been pleasantly surprised at the brakes on the truck. They're WAY too worn -- the rotors have been worn a good 1/8" of an inch because there's a lip at the very outer edge. It's been that long since they've been turned. It was like that when I got the truck, and hasn't degraded much since. I'm fixing to put new wheel bearings on it here pretty soon, and I'll throw new front brakes at it while I'm in there. I hope they can cut the rotors, but I'm figuring on having to purchase new ones, since these seem worn so.

m4ck · Oct 25th, 2004, 01:58 PM

http://www.nissanhelp.com/Bulletins/Titan/2004/1.htm go there whenever you are looking for any new TSB's they post them very quickly . Usually before anyone at the dealership even knows. Its actually kinda funny.
M4ck

nutech · Mar 23rd, 2005, 02:30 AM

I would like to bring to this thread one of Applied Rotor Technology’s (ART) low cost solutions to the Titan/Armada/Q45 brake problems owners are experiencing with these new vehicles.

Many owners have recently commented they had been thru sets of front brakes in less than six months!

The popular magazines gave the Titan high marks on it’s hauling capabilities however, they did stay long enough to see how the brakes hold up to stopping these loads month after month.

Not many owners understand the problems with cast-irons used in brake disks today. Cast-iron is an alloy of iron and silicon intersperse with carbon particles. The problem is inclusion of carbides will begin to form in the structure or matrix of the iron leading to the development of “cementite” at braking temperatures.

Dealers convincing their customers to allow them to turn the rotors to re-true the fiction faces where cementite has begun developing is only a quick fix. When the brakes are subjected to the same stopping forces causing the problem in the first place and now with less mass in the brake rotors, although small, there is a reduction in the rotors’ ability to absorb the heat generated and these deposits of cementite will in a short time, say (5K) or so, will start this text book example of "brake judder" again.

Nissan and others are not using the latest sciences and technology to reduce “Austenite” in the cast-iron in all probability due to the costs involved.

ART employs deep cryogenic tempering. Cryo-Treating is a complex process but, performed properly it promotes better heat absorption in cast-iron by reducing its’ properties of Austenite and porosity by changing these weaker deposits into more uniform particles know as "Martensites". With the addition of gas-porting and using combinations of Carbon or Kevlar materials in the brake pads the stopping power is improve dramatically. After brake rotors have been treated cryogenically a more uniform matrix is the result. and with the addition of gas-porting the development of cementite is virtually eliminated.

Owners who use their trucks to tow trailers, carrying work tools or heavy loads are experiencing braking Judder. This is nothing new to heavy truck owners. ART has been helping owners with Fords, Dodges, GMs and Toyotas etc. for years.

Here are just some of other forums where you can find owners of heavy trucks with brake issues.

http://www.nissantitan.info/forum_po...82&KW=titanmom
http://www.turbodieselregister.com/f...d.php?t=109818
http://www.ford-trucks.com/articles/sept2000/art1.html
http://fordtrucks.com/forums/showthread.php?t=262823
http://www.fordexcursions.com/forums...?threadid=4090
http://www.fordexcursions.com/forums...&page=1&rpp=10