Braking issue?

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GimmieSumMo72
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Braking issue?

Postby GimmieSumMo72 » Sun Jun 21, 2009 12:28 pm

When I drive the Pathfinder at highway speeds and brake medium or hard, there is a vibration in the pedal and the steering wheel starts to vibrate or shake noticeably.

Is this a problem? Is this a normal thing that the ABS does and I've never noticed before? Can this issue be fixed under warranty?

It started around 16k miles and now has 18.5k.

It's a 2007 SE-Off Road purchased in February '07.

Thanks!

Mo.


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JAHBLESSINGS
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Postby JAHBLESSINGS » Sun Jun 21, 2009 12:44 pm

sound like the rotors are warped and need to be resurfaced. check with nissan to see if is still covered.

KEVSTER
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Postby KEVSTER » Sun Jun 21, 2009 1:53 pm

JAHBLESSINGS wrote:sound like the rotors are warped and need to be resurfaced. check with nissan to see if is still covered.
I 2nd this reply. warpped rotors.

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SilverGhost
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Postby SilverGhost » Sun Jun 21, 2009 4:36 pm

Yep, warped rotors it is. Unfortunately, they may be considered "consumables," and therefore not covered under any portion of the factory warranty.

Just a word of caution, driving with a foot resting on the brake pedal is the most frequent cause of early rotor warping. I've got 21k on my '06, and zero braking vibration. YMMV.

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GimmieSumMo72
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Postby GimmieSumMo72 » Mon Jun 22, 2009 6:48 am

yikes...

i know that i don't ride the brake when i drive it, but the wife drives it 90% of the time and i really don't wanna watch her drive.

but i'll ask her! i guess i have to set up an appt with the stealer.

I noticed it after the 15k service from the stealer... maybe i shouldn't have waited so long?

If I have to replace the rotors and pads myself, what rotors & pads would you guys recommend?

The only decent ones I've found so far were Raybestos rotors.

NVRDONE
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Postby NVRDONE » Mon Jun 22, 2009 3:43 pm

Akebono pads & EBC or Stillen rotors work really well.

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GimmieSumMo72
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Postby GimmieSumMo72 » Mon Jun 22, 2009 3:46 pm

im praying that they cover this under warranty! :cry:

i was pricing rotors today... the EBC ones look nice but $220 a pop is nuts!

KEVSTER
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Postby KEVSTER » Mon Jun 22, 2009 4:08 pm

GimmieSumMo72 wrote:im praying that they cover this under warranty! :cry:

i was pricing rotors today... the EBC ones look nice but $220 a pop is nuts!
Plain EBC at 55.00 a rotor. http://www.autopartswarehouse.com/sku/N ... R7402.html

KEVSTER
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Postby KEVSTER » Mon Jun 22, 2009 4:12 pm

you can remove them yourself and take them into a machine shop for auto repair and have them turned at 13.00 a rotor. The main problem is usually over torquing the lug nuts, and or not torquing at all. I torque lugs to 105FT. Lbs, I start with 50 FT Lbs, go in a star pattern, than increase to 105 FT Lbs,, repeat..

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SilverGhost
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Postby SilverGhost » Mon Jun 22, 2009 4:38 pm

GimmieSumMo72 wrote:If I have to replace the rotors and pads myself, what rotors & pads would you guys recommend?
Replace the wife at the same time. Problem solved! 8)

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GimmieSumMo72
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Postby GimmieSumMo72 » Mon Jun 22, 2009 5:04 pm

KEVSTER wrote:you can remove them yourself and take them into a machine shop for auto repair and have them turned at 13.00 a rotor. The main problem is usually over torquing the lug nuts, and or not torquing at all. I torque lugs to 105FT. Lbs, I start with 50 FT Lbs, go in a star pattern, than increase to 105 FT Lbs,, repeat..
you think torqing the wheels may cause the vibration?

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GimmieSumMo72
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Postby GimmieSumMo72 » Mon Jun 22, 2009 5:05 pm

SilverGhost wrote:
GimmieSumMo72 wrote:If I have to replace the rotors and pads myself, what rotors & pads would you guys recommend?
Replace the wife at the same time. Problem solved! 8)
oh how i wish i could!

Suliman
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Postby Suliman » Mon Jun 22, 2009 6:56 pm

you think torqing the wheels may cause the vibration?
Yes. If you tighten down to the correct specs, you're golden. HOWEVER, even more so with today's rotors, if they are over-tightened, like just zipped on with an impact gun NOT using torque sticks, you could very easily warp your rotors.

After trial and error on my cars and trucks (and working on cars for guys that daily drive their drifters), I found that a decent quality plain old rotor and really nice pads work the best. Your Hawk or EBC (I LOVE the EBC greens!) pads with a standard, non-drilled, non-slotted rotor are GREAT for track days and last forever and are great performers on the street. I actually just replaced my Chevy Silverado with the Hawk LTS pads and generic rotors from AdvanceAuto.

More and more, I find it not even worth it to turn rotors anymore, between labor and how quickly turned rotors warp. Just recycle and buy new.

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Tech
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Postby Tech » Tue Jun 23, 2009 6:53 pm

i agree with impacting on lug nuts being the culprit. R51's aren't prone to it, but it happens. 105ft/lbs is over-torqued though

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GimmieSumMo72
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Postby GimmieSumMo72 » Wed Jun 24, 2009 1:25 pm

the last place that touched those wheels were the stealer i brought it to for the 15k inspection/service.

the car has 18.5k now. and my wife is bringing it to a different dealer tomorrow b/c its closer and easier to get to...

what are my options?


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