Wednesday, 25 December 2013

2004–2006 Nissan Titan And Armada Groan Noise From Front Brakes

2004–2006 Nissan Titan And Armada Groan Noise From Front Brakes
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If you confirm a “groan” or “growl” noise coming from the front brakes, note: if this incident should occur, it happens after the vehicle has been stopped several times using moderate to hard braking effort. The noise might then be heard during the last few feet of braking when coming to a stop. Action replace the front brake pads with the new ones listed in the parts information. Note: the new brake pad kit includes new pad retainers and backing shims. Service procedure 1. Remove the front brake pads. • refer to section br in the service manual for brake pad removal. 2. Inspect the rotors; service as needed. • refer to section br in the service manual for brake rotor inspection and service information.
3. Prep the inboard brake pads for installation. A. Apply a “moderate” amount of molykote® m77 grease—p/n 44003-7s000—to the back of each pad as shown in figure 1. Note: • the inboard pads have a straight edge and a pad wear sensor. • the inboard backing shims have cut-outs on the edges. Inboard pad and backing shim (right side shown) b. Install the shim and push down on it to squeeze out any excess grease. C. Clean off all of the excess grease that squeezes out (see figure 2). Caution: don’t get any grease on the brake pad or brake rotor friction surface. 4. Prep the outboard brake pads for installation. A. Apply a “moderate” amount of molykote® m77 grease—p/n 44003-7s000—to the back of each pad as shown in figure 3.
Note: • the outboard pads have a curved edge. • the outboard backing shims do not have cut-outs on the edges. B. Install the shim and push down on it to squeeze out any excess grease. C. Clean off all of the excess grease that squeezes out (see figure 4). Caution: don’t get any grease on the brake pad or brake rotor friction surface. 5. Install the new front brake pads and pad retainers. • refer to section br in the service manual for brake pad installation. • apply a thin layer of molykote® m77 grease—p/n 44003-7s000—to the pad retainers. • make sure the inboard pads are installed with the wear sensors facing down— towards the ground (see figure 5). 6. Reinstall the wheels and lug nuts. • tighten lug nuts to 133 n·m (14 kg-m, 98 ft-lb) with a torque wrench. • do not tighten the wheel lug nuts with an air impact wrench. • if you apply uneven or high torque to the lugs it may “distort” (warp) the brake rotor and hub. This could cause increased rotor runout and excessive rotor thickness variation as the rotor wears.

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