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Brake pedal is pulsating bad hard to turn wheels

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Old 01-20-2017, 07:21 PM
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Brake pedal is pulsating bad hard to turn wheels

Can i get some advice I am at the end of the rope on this truck. Took it to ford for warranty issue on alternator. Noticed a noise like a pulley bearing tight or belt tight. Took it back to ford they said belt was causing the problem so it was replaced. 2 days later i go to use the brake and notice a noise and the pedal is seriously pulsating thru the firewall it feels like. Went away and then came back and now turning the wheel is causing a noise? I don't want to go back to ford? Anyone had this problem.

I need some help please.

Thanks
 
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Old 01-20-2017, 07:25 PM
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The breaks and steering run off the same pump, have you checked the fluid level? Also make sure the belt is on the pulley correctly and not slipping. Those are two quick checks if you haven't done it yet.
 
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Old 01-20-2017, 07:29 PM
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the belt was just replaced Tuesday by ford and i have fluid in the steering pump and brake booster. Steering pump smells like its old but this problem just jumped up today?
 
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Old 01-20-2017, 07:30 PM
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My truck is a 99 F250 7.3 sorry for not including that in the post
 
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Old 01-20-2017, 07:44 PM
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Originally Posted by retired8282
My truck is a 99 F250 7.3 sorry for not including that in the post
For the belt, I don't remember if that pulley is on the rib or back side of the belt but I meant just make sure it is riding on the pulley correctly. Since the belt was just replaced, then maybe it has something to do with that or it could just be a coincidence. Also make sure the belt is good and tight and there isn't an issue with the tensioner. It would be good to have someone else in the truck to duplicate the issue while you are looking under the hood.

Here is a similar post.

https://www.ford-trucks.com/forums/1...g-pulsing.html

Another

https://www.ford-trucks.com/forums/1...d-kicking.html
 
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Old 01-21-2017, 09:42 AM
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I will look today searched the forum and it might be the hydro vacuum pump? It just sucks seems like every time i get it fixed at Ford something else is wrong. I dont want to drive and have no brakes?
 
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Old 01-21-2017, 12:57 PM
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If you think about the sequence of symptoms and consider that the original diagnosis by the Ford tech may have been wrong, you might make some progress.

What if your power steering pump has been starting to bind up because of a bad front bearing. Then the belt starts to squeal from the additional load. You replace the belt with a new one that grips better, so the noise goes away. But the pump is still the problem, so you notice eventually that the brakes and steering are affected.

It isn't the truck that is the real problem, it is the incorrect diagnosis. So to fix that problem, you should decide whether you would be better served by an independent shop that specializes in 7.3 trucks and has employees that can analyze. There is a big difference between a troubleshooter and a parts changer. The art of logical thinking is not practiced by all mechanics. That said, we all make mistakes, so maybe your mechanic usually does a good job for you, so no need to change.

Larry
 
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Old 01-21-2017, 01:07 PM
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hydro vacuum pump?
______________________________________________
The only things that operate with vacuum are the ESOF 4WD if so equiped and the heat / A/C vent selector. The vacuum pump in these trucks has nothing to do with the brakes.
 
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Old 01-21-2017, 01:44 PM
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Originally Posted by retiredsparky
If you think about the sequence of symptoms and consider that the original diagnosis by the Ford tech may have been wrong, you might make some progress.

What if your power steering pump has been starting to bind up because of a bad front bearing. Then the belt starts to squeal from the additional load. You replace the belt with a new one that grips better, so the noise goes away. But the pump is still the problem, so you notice eventually that the brakes and steering are affected.

It isn't the truck that is the real problem, it is the incorrect diagnosis. So to fix that problem, you should decide whether you would be better served by an independent shop that specializes in 7.3 trucks and has employees that can analyze. There is a big difference between a troubleshooter and a parts changer. The art of logical thinking is not practiced by all mechanics. That said, we all make mistakes, so maybe your mechanic usually does a good job for you, so no need to change.

Larry
Great advice here, follow it! Reps sent your way Larry.
 
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Old 01-21-2017, 04:19 PM
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Ya i am gonna change out the power steering pump. I think with listening to you guys and thinking about the symptoms its the pump. I will find out next week and re post when its done. Thanks to everyone who gave me advice,
 
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Old 02-05-2017, 07:42 AM
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I wanted to close out this post by saying that replacing the power steering pump solved the brake issue. Now my brakes are even better and power steering works great. Thanks for the help and guidance on where to start.
 
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Old 02-05-2017, 09:21 AM
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I don't visit here as much as I used to, but I hope next time you have an issue, you come back to this forum first and use the dealership as your backup. The knowledge in this forum is phenomenal, and I'm not saying that your Ford tech isn't competent, but it's unlikely they have the wealth of knowledge of the forum members here, past and present. Ideal situation is that your Ford tech is a regular reader of this forum!

Glad you got everything sorted!
 
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Old 02-05-2017, 10:52 AM
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I second what Papa just said. This forum has saved me thousands of dollars and has had dead on information every time I needed advice. From my old 85 then 86 Bronco, 02 F150 and my 99 F350.

It has been about 7 yrs but maybe it is time to start planning another BBQ for the local members.
 
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