Brake Fluid Leak problems of the 2004 Nissan Titan

Incident 1: I was driving through a parking lot and applied the brake. Once the brake was applied, the brake pedal pushed back at me as if the abs system had been activated, and there was a loud sound that I know to be caused by the abs system being used. Luckily, when this happened I was about to pull into a parking spot and it had a curb. Knowing that my brakes were partially compromised, I slowly entered the parking stall and needed minimal braking. I noticed that my emergency brake light, vdc off light, and my slip light were all illuminated. At this point I turned off the vehicle and walked around it looking for any evidence of a brake fluid leak or anything out of the ordinary. I didn't see any brake fluid or any fluids or contaminants on the brake discs. I returned several minutes later and turned on the car and it performed as normal for about a week and dismissed it as an unusual one time fluke. One week later, I had a very similar incident detailed below. Incident 2: again, I was going through a parking lot at less than 10 mph, and was about to pull into a parking space. This time, it did not start until I was pulling into the space, so I had no warning that I would have a hard time stopping. Luckily, I had a curb at the end of my parking space. Once I felt the kick back I immediately pressed on the brake as hard as possible and slowly came to a stop a few inches away from the curb. I then saw the same warning lights the same as before. Dealership visit: at this point, I knew it wasn't a one time thing and took the truck to the dealer later that day. They told me my delta stroke sensor was bad and needed to be replaced. I have not had it fixed yet, and do not know if this is a permanent fix. I have seen several others with this same problem, just more significant. Definitely will be a long time before I feel safe driving this truck again.

While replacing lifetime warrantied suspension which was not honored by Nissan or tenneco, I found the rear pinion seal to be leaking severely, and rear axle seal leaking in wheel assembly. Possible source of "ticking" noise from differential, which until then I thought were exhaust heat shields. This condition could cause catastrophic drivetrain failure while vehicle is in motion. The fluid leaking from axle seal can reduce effectiveness of braking components. Other owners have described inadequate engineering & possible use of substandard differential materials & components along with axle vent assemblies which could create internal pressure conditions that could cause seals to fail.

Bought the Nissan Titan used in November of 2007. I recently found a wet spot on the driver's side wheel (inside) under the brake rotor. I took the truck to the dealership and they said it seems to be a pretty common problem with the Titan. It's a leaking axle seal. This leak was causing brake fluid to leak around and possible onto the brake rotor, calipers, and pads. This is a very dangerous problem due to possible fire and or brake failure.