Thump when brakes applied???? - Diesel Forum - TheDieselStop.com
'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

 
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post #1 of 12 (permalink) Old 03-26-2005, 07:30 PM Thread Starter
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Thump when brakes applied????

Just recently when i apply the brakes in makes a small thump and pulls to the left. anybody experince this before? Could it be a sticky caliper? Any ideas would help. thanks

Kevin

y2k f-350 4dr.4x4 shortbed. a couple of small things done here and there.
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post #2 of 12 (permalink) Old 03-26-2005, 08:31 PM
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Re: Thump when brakes applied????

check your ball joints my truck is doing the same

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post #3 of 12 (permalink) Old 03-26-2005, 10:35 PM
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Re: Thump when brakes applied????

I have the same symptoms.I suspect the sticky caliper also.Thump only happens when applying the brakes and will shift from front to rear whenever I apply the brakes.Only one thump and then it is gone,apply brakes one thump a little shake and a pull.

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post #4 of 12 (permalink) Old 03-27-2005, 12:49 AM
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Re: Thump when brakes applied????

I'm thinking Sway Bar on my 01!
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post #5 of 12 (permalink) Old 03-27-2005, 03:20 AM
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Re: Thump when brakes applied????

On Both my 01 and my friends 00 F350 it was a ball joint.








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post #6 of 12 (permalink) Old 03-27-2005, 09:55 AM
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Re: Thump when brakes applied????

Ball Joint....mine did too.. ONE THUMP... thats it. Then if you accelerate or go a bit farther,,, then hit the brake again, thump/ or CLunk,,, whichever ya want to call it.Really when you go in to fix it/fix them.. replace all four...not alot more work,,and they all are close to being bad if one is probably.
Saves tearing it down again later.

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post #7 of 12 (permalink) Old 03-27-2005, 10:46 AM
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Re: Thump when brakes applied????

I have that same "thump" when I apply my brakes. Same symptoms. I have checked my ball joints (greasable), and they are very tight and have no wear. Any follow ups or information on the caliper sticking would be helpful. I don't have any knoledge on brake units and diagnosing, but would like to find out how to check these things. Thanks, Bob

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post #8 of 12 (permalink) Old 03-27-2005, 10:58 AM
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Re: Thump when brakes applied????

Mine doesn't pull left or right and it "sounds" Feels like right under my feet!! Truck's in ther shop right now for other reasons!!
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post #9 of 12 (permalink) Old 03-27-2005, 11:18 AM
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Re: Thump when brakes applied????

Yep. Feels like its right underneath the floorboard. I'm getting that too. Let me know if you find anything out. Thanks, Bob

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post #10 of 12 (permalink) Old 03-28-2005, 10:45 PM
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Re: Thump when brakes applied????

I found mine. its the crossover bar that hooks to the pitman arm. i think i am going to have to replace the rod . doestn look likr that ball joint comes out. Doesnt look hard just alot of money for the part. everything else is tight.
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post #11 of 12 (permalink) Old 03-30-2005, 12:22 AM
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Re: Thump when brakes applied????

Think I"ll bump this back to the top as I have the same noise under my floorboard. All along I was thinking it was my Sway bar also but after reading this I'm checking balljoints and bar conneted to pitman.

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post #12 of 12 (permalink) Old 03-31-2005, 11:44 AM
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Re: Thump when brakes applied????

I think that I have seen posts in the Excursion side that said the fix was taking out the drive shaft and greasing the the shafts that it slides onto. I was going to do it next chace I had. Also check the sway bar end link bushing 10-20 dollars and 30mins. I hear that it helps a lot to. On my truck it connect beneath the drivers feet.

Hope this help!

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