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Old 04-13-2010, 05:30   #1 (permalink)
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Question about 98 Crown Vic brakes

98 CV w/130 miles.

I had brakes put on at 114k miles. Im not sure if just pads were put on or rotors and pads. But in short, the brakes were fine for about 15k miles. Now I am getting a slight shimmy in the steering wheel when I apply the brakes at a speed greater than 40 miles an hour.

Last oil change, I told the dealer about this and he said the pads had greater than 80% life left. Further, he stated that when it got unbearable, to let them know and they'd fix it.

With my car aging, am I going to have to put pads on every 10k miles to avoid this? Is this a fluke, or is there something else I should have replaced to get to the root of the cause? I had lower ball joints put on about 5k miles ago. The tires have been recently balanced and rotated, so I'm fairly certain its something in the front brakes.

Any ideas? Thanks
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Old 04-13-2010, 09:50   #2 (permalink)
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Re: Question about 98 Crown Vic brakes

My guess is that the rotors were not replaced when you had the pads done, and now its time to replace them. What probably happened is that with new pads, the breaks generated more heat which warped the already worn rotors. That said, if the rotors still have a fair amount of material left they may be able to be machined, I haven't had much luck with that though.

A shimmy felt in the steering wheel is usually front breaks, and a shimmy felt in the seat but not in the steering wheel is usually back breaks.
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Old 04-13-2010, 15:29   #3 (permalink)
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Re: Question about 98 Crown Vic brakes

Quote:
Originally Posted by BigMerc96 View Post
My guess is that the rotors were not replaced when you had the pads done, and now its time to replace them. What probably happened is that with new pads, the breaks generated more heat which warped the already worn rotors. That said, if the rotors still have a fair amount of material left they may be able to be machined, I haven't had much luck with that though.

A shimmy felt in the steering wheel is usually front breaks, and a shimmy felt in the seat but not in the steering wheel is usually back breaks.
I second that.
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Old 04-13-2010, 21:00   #4 (permalink)
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Re: Question about 98 Crown Vic brakes

Thanks for the opinions guys. I'll speak with the dealer this week and see what they say once they get the car on a lift to take a peek.
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Old 04-13-2010, 23:10   #5 (permalink)
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Re: Question about 98 Crown Vic brakes

Also, I've decided to do this brake job myself.

Can you recommend some rotors and pads that work good? I read ceramic pads are best. Whats a good rotor and pad that is quiet, and good for stop-n-go traffic?

Thanks
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Old 04-14-2010, 08:53   #6 (permalink)
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Re: Question about 98 Crown Vic brakes

If you're a very agressive driver, get some pads that are made for Police cars and crossdrilled rotors. I just get regular Napa rotors and pads for mine since I don't drive. I also try to find rotors that aren't made in China.
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Old 04-14-2010, 09:31   #7 (permalink)
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Re: Question about 98 Crown Vic brakes

On my Malibu I used Duralast Premium Ceramics (or whatever they call them) from Autozone with standard Duralast rotors, in the 15,000mi until I sold the car they hadn't warped the rotors, unlike the semi-metalics they replaced (which only lasted ~8,000mi), and still had plenty of pad life left. But the 97-03 Malibus were known to warp rotors if they were driven aggressively.

In short, If I were to do the breaks on my Mercury today, I would use the Duralast ceramics again.
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Old 04-15-2010, 12:34   #8 (permalink)
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Re: Question about 98 Crown Vic brakes

I bought the best rotors and pads that Autozone had to offer and after 4 months my 1996 P71 Crown Vic developed the front shimmy again. I think the rotors were from China and I know they were not crossdrilled rotors. Be careful what you buy. Good luck.
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Old 04-15-2010, 12:40   #9 (permalink)
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Re: Question about 98 Crown Vic brakes

You would be able to buy quality parts from rockauto with the discount this forum offers
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