It's pulling my wang.... - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 33 (permalink) Old 01-25-2008, 10:57 PM Thread Starter
Grumpy Old Bitter Bastard
 
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Unhappy It's pulling my wang....

No, it's pulling to the right - bad under braking.

So here it is. Fresh alignment, new tires. Ball joints, tie rods, tack bar - all good. New front hubs/bearings. New rotors, new loaded caliper assemblies, new hoses - hell, seems like everything is new.

Running down the road the truck runs straight as a arrow. When the brakes are cold, the truck brakes, and stops great and straight.

Now, put 10 - 20 miles on it and things get warmed up and hit the brake and it pretty much hauls you hard to the right. Definitely front end. If your grip on wheel is not tight and with hard brake, it could rip the wheel out of your hand. Sucks. Has been ongoing for awhile now.

Removed the calipers assemblies and hoses, and put two new loaded assemblies and hoses on again. Cold, great, hot, still pulls bad to right. All new slide pins, greased, etc come on the assemblies. Chances of getting two new caliper assemblies that are bad and installing both on left side - slim.

Ok. Is there somewhere in the brake system that I could be getting a pressure differential? No ABS light or scanned and no ABS codes. Is it possible in the proportioning valve that I can get a left/right pressure variation?

I read a bunch of TSBs on brakes. Only one that struck me was the weak spring causing a pull?? I have no idea how you would check for that??

Thoughts - suggestions??

aka - Grumpy .. aka - Bubba Grump .. aka - Bubba .. aka - Grumpy Old F... . . A "slow" fatass 9K Dually.
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post #2 of 33 (permalink) Old 01-25-2008, 11:02 PM
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Re: It's pulling my wang....

Swap the pads to the other side and see if it changes.




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post #3 of 33 (permalink) Old 01-25-2008, 11:04 PM Thread Starter
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Re: It's pulling my wang....

Quote:
Originally Posted by Arisley View Post
Swap the pads to the other side and see if it changes.
All pads between the first pair of calipers and second pair were new - different. Made no difference.

aka - Grumpy .. aka - Bubba Grump .. aka - Bubba .. aka - Grumpy Old F... . . A "slow" fatass 9K Dually.
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post #4 of 33 (permalink) Old 01-26-2008, 12:36 AM
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Re: It's pulling my wang....

Caliper slide pin could be sticking. Did u lube it before puttin it back in?

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post #5 of 33 (permalink) Old 01-26-2008, 02:32 AM
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Re: It's pulling my wang....

I'd check calipers, if it's pulling to the right it's probley your drivers side caliper. I had one go bad on me after only 5 months, they took em back under lifetime warrenty so I'm back on the road again!


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And remember, he's cat rebel....he doesn't do it the normal way.
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post #6 of 33 (permalink) Old 01-26-2008, 02:46 AM Thread Starter
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Re: It's pulling my wang....

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Originally Posted by Cat_Rebel View Post
I'd check calipers, if it's pulling to the right it's probley your drivers side caliper. I had one go bad on me after only 5 months, they took em back under lifetime warrenty so I'm back on the road again!
Yep, like I said. Two pairs (that's 4 total), new, complete loaded, caliper assemblies (calipers, frame, pins, grease, boots, pads, clips, etc). Made no difference. With new hoses with the first pair, and another set of new hoses with the second pair of assemblies.

aka - Grumpy .. aka - Bubba Grump .. aka - Bubba .. aka - Grumpy Old F... . . A "slow" fatass 9K Dually.
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post #7 of 33 (permalink) Old 01-26-2008, 02:59 AM
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Re: It's pulling my wang....

Hmmmmm you seemed to have covered all grounds here so I'm not sure what to tell ya....
I'd like to hear what it is when you get it figgured out.


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And remember, he's cat rebel....he doesn't do it the normal way.
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post #8 of 33 (permalink) Old 01-26-2008, 04:31 AM
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Re: It's pulling my wang....

I'd like to hear this one to, Mine pulled to the left once. That was the calliper though, replaced it and it was as good as new!

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post #9 of 33 (permalink) Old 01-26-2008, 04:32 AM
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Re: It's pulling my wang....

Try swapping rotors.
You mean weak leaf spring??? The only way I can think of to check for that is have JoeD run along side the truck and he can see if the spring is flexin too much when braking

How does the peddle feel? could still be alittle air in the system.


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post #10 of 33 (permalink) Old 01-26-2008, 09:27 AM
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Re: It's pulling my wang....

Bad master/ perportaning valve. Just for laughs check you rears I have done a few cars that would pull hard and it was the rears.

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