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Help needed brakes


Petercan1020
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Hi I just purchased a 2002 Pathfinder 4-wheel drive it's my second one I learned a lot this one I bought with a soft pedal so immediately I purchased front brakes and rotors when I went to go have them done he replaced just the pads because the rotors looked fine I didn't feel any warping and besides he really didn't feel like dealing the rotors yet because I am going to be changing the ball joint and tie rods along with some other suspension pieces I have purchased but never got a chance to put on the other truck before the accident. So we change just the pads and I still have no pedal he noticed my fluid level was low he added and still have no pedal so he told me to order I master cylinder so I'm ordering one now but all of a sudden I'm driving and my driver side brakes feel like they're getting ripped apart has anybody had this problem and how would I know if the booster goes bad I know I have to check my lines I think I'm losing brake fluid also something to check on my rubber hoses how would I know if a caliper goes bad and it's only when I brake hard that I feel that grinding in the front driver side

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Have you tried adjusting your push rod for the brake booster? It's up under the dash and attaches to the brake pedal arm. That could give a soft pedal feel because it's not fully depressing the master cylinder.

 

What do you mean by the grinding feel? Did you give the new pads time to seat with the rotors? One side could be partially glazed and the other side has seated more.

 

As for a possible leak, check with a bright flashlight and a clean dark colored rag around all connections and hard lines for any weeping or dampness of any kind. Soft pedal could also be caused by air trapped in the system. I'm sure with it being an 02 model it has ABS and if there's air in the ABS module it'll sometimes freak out and cause harsh braking issues.

 

Check for leaks, if no leaks are found, bleed the entire system following the FSM procedure and then check again. There's also a procedure in the FSM for checking the distance the brake pedal travels.

 

Sent from inside my potato

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I noticed a leak around the master cylinder so I'm going to change that out I did let the pads settle it's a really weird feeling it sounds it feels like the pad is being ripped apart happened like 3 times but it's snowing heavily yesterday and hasn't done it I'm in New York long Island. I'm going to check out the pin you're talking about also how would I know if the booster is gone bad or a caliper I didn't notice anything when I switch the brake pads on the calipers greased up all the pins the piston and went back in smoothly.

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Are the back brakes drums on the 02? Rear brakes and proper adjustment is responsible for a lot of the pedal feel on your brakes. If you saw a leak around the master cylinder i would probably start there. Just as a cautious side note, be sure it isn't spillage from someone adding fluid. Also you can leak fluid at the wheel cylinders for the drum brakes in the back. "its like a 6 dollar part on rockauto".

 

 

Hope you get it straightened out. When i did my brakes a 3 years ago i ordered a set of drilled and slotted rotors and pads for the front and it was like 105bux for the whole set. ebay ftw. hehe repacked the bearings recently because she was sitting for a while. pads and rotors both were still mint! like brand new. i was impressed.

 

 

good luck

 

PAt

Edited by fixinto
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  • 7 months later...

I'm kind of having similar inquiry:

 

Past two weeks, seems like when I brake a little rougher (bad driver cutting me off, suddent light change, etc) it feels like I am suddenly on a bumpier road. There has been a squeal off and on with the front right -but mainly when there's moisture out like rain. A friend who's done brakes before, had a look at my rotors and brakes on Sunday, he didn't think the pads needed to be replaced or the rotors needed anything done to them. Any idea? I have only owned this R50 since December, bought it from a dealriship that specialises in one vehicle owner vehicles; I've felt like a Queen driving it. :wub:

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When you say like on a bumpy road, you mean the whole car shakes or the pedal pulsates? If the pedal pulses when you gently apply the brakes then your rotors are warped. Could cause a shake too.

 

Did the r50 have rear drums? In the old days when drum brakes got wet they would grab causing a shudder.

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Did he look at the inside pad also or just the outer pad?

 

Mine always seem to wear faster on the inner pad.

 

When it feels like a rougher road with hard breaking is it a shimmy through the wheel? A pulsing through the break pedal? Any nasty noises?

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No noises with the rough road feeling, I suppose with the way it feels when I brake, it feels like all 4 tyres are on a bumpy road. My friend did look at the inside pad, but he didn't take them off the rotor and actually look at them, he just eyed them.

 

In regards to the nasty noise, when I had picked up my friend to bring him to my place, there was a point where I was braking and he thought it was metal on metal but that idea completely dissolved once we had the tyre off and actually where able to look. I didnt think the noise was that bad, and it's inconsistent with that "squeal" I mention earlier. Or perhaps like a squeek with the right front brake. We didn't look at anything inthe rear for all the attention grabbing is coming from the front.

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Everything else looks fine. Only wear I saw was a small crack on the CV boot, and I am guessing that's original to the Pathy. On my way to work tomorrow, it will be before sun rise, so less traffic, I will try to remember to roll the the window down and mute the radio just before I brake. Back when there was snow on the ground, where I was living, I didn't want to do an oil change, so I took it to Midas, and they thought everything was in great condition (y'know how places like that try and look for problems to make an extra sale or two).

 

I really appreciate your help and time!!! :blush02: Maybe tomorrow I shall have better information.

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I appreciate your input. I also was pondering if it's nothing at all, if it's just the ABS doing it's thing. I tried doing a hard brake and everything was smooth. I guess it was hard to mimic without a wanker of a driver to react to! :lol: I didn't try threshold braking, but just truly pondering if I am wasting people's time and it's just the ABS doing it's thing? :blush:

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ABS is quick, it pulses multiple times a second. If that is the case, and it only happens on extreme braking, then it may be the ABS functioning.

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If that's what ABS is suppose to feel like, it feels like I'm on a rough ride when mine engages -if that is the culprit! Thank you so much for all your time and help Citron! I'll be back as soon as I have more info.

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