Good Sam Club Open Roads Forum: Tow Vehicles: F-250 Brake Issue
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Lynnmor

Red Lion

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Posted: 01/24/19 05:12pm Link  |  Quote  |  Print  |  Notify Moderator

The back side of the brake pads rust like crazy, especially if you drove on salted roads, just one thing to check.





danrclem

Ky.

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Posted: 01/24/19 06:03pm Link  |  Quote  |  Print  |  Notify Moderator

Lynnmor wrote:

The back side of the brake pads rust like crazy, especially if you drove on salted roads, just one thing to check.


That would be my first guess. If it's been raining there like it has been in my area there is plenty of moisture to do that.

315RLTSinPA

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Posted: 01/24/19 06:21pm Link  |  Quote  |  Print  |  Notify Moderator

Could be hill start assist. Does it do it on level ground or only on hills? Shouldn't do it on level ground.

SETenn

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Posted: 01/24/19 06:27pm Link  |  Quote  |  Print  |  Notify Moderator

I just found out that it does have the hill assist so maybe that is what is going on?? For you guys that have this feature, does it feel like something breaks free when you hit the gas pedal? The previous owner put a level kit on this truck, which I hate, and I'm wondering if dropping the back end a little with the kit causes the hill assist to engage more often than needed.....

BenK

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Posted: 01/24/19 06:33pm Link  |  Quote  |  Print  |  Notify Moderator

Another possibility is with the 4x4 system

IIRC, Ford uses vacuum in stead of solenoids for the hubs and they don't always release nor engage, depending on the issues. Buddy had his fixed via a TSB. Rain water from the cowl washes over the vacuum control & motor. Messes it up and then the water runs down the vacuum line to mess up the hub gear set. Mostly they will stick and some times partially stick...that is what got him into the dealer for a 'ratcheting' sound coming from his right wheel...his hub gear was stuck in-between engaged and disengaged

IIRC, Ford also uses a computer module to control the transfer case and motors to shift the transfercase.

I'm old school and dislike all of these computer controlled and motorized shift linkages. Prefer the levers that confused too many and they why the OEMs have gone to automated 4x4 controls

Also, do you drive with the 4x4 in lock while on pavement? If so, your 4x4 system might be binding and that is holding it back until it unwinds. If you, don't, as it will ruin your 4x4 system


-Ben Picture of my rig
1996 GMC SLT Suburban 3/4 ton K3500/7.4L/4:1/+150Kmiles orig owner...
1980 Chevy Silverado C10/long bed/"BUILT" 5.7L/3:73/1 ton helper springs/+329Kmiles, bought it from dad...
1998 Mazda B2500 (1/2 ton) pickup, 2nd owner...
Praise Dyno Brake equiped and all have "nose bleed" braking!
Previous trucks/offroaders: 40's Jeep restored in mid 60's / 69 DuneBuggy (approx +1K lb: VW pan/200hpCorvair: eng, cam, dual carb'w velocity stacks'n 18" runners, 4spd transaxle) made myself from ground up / 1970 Toyota FJ40 / 1973 K5 Blazer (2dr Tahoe, 1 ton axles front/rear, +255K miles when sold it)...
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TakingThe5th

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Posted: 01/24/19 06:41pm Link  |  Quote  |  Print  |  Notify Moderator

Ask your mechanic if the ABS system might be involved. Perhaps you have a bad sensor. Rare, but possible. If the calipers and hoses are indeed OK, this might be worth exploring. Also I would assume that new pads were installed with the calipers. I say this because I once had an oil-contaminated pad stick as you explained. Good luck.

* This post was edited 01/24/19 06:47pm by TakingThe5th *


TakingThe5th - Chicago, Western Suburbs
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whjco

Lexington, KY

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Posted: 01/24/19 08:11pm Link  |  Quote  |  Print  |  Notify Moderator

I've had this happen to two of my Ford vehicles, one a 2000 E350 and a 2000 Excursion. The lining of the flexible hoses to the front brake calipers were deteriorating on the inside of the line thereby blocking the flow of brake fluid out of caliper when the brake pedal is released. Once all three (#3 to the rear axle) of the flexible lines were replaced, the problem went away.


Bill J., Lexington, KY
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Dave H M

IL

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Posted: 01/25/19 07:23am Link  |  Quote  |  Print  |  Notify Moderator

SETenn wrote:

I just found out that it does have the hill assist so maybe that is what is going on?? For you guys that have this feature, does it feel like something breaks free when you hit the gas pedal? The previous owner put a level kit on this truck, which I hate, and I'm wondering if dropping the back end a little with the kit causes the hill assist to engage more often than needed.....


I have a 2012 F250 that does the same thing. It is the hill assist thinking you stopped on a hill or maybe you did stop on a slight incline.

Relax, you will get used to it. I don't think you will change a thing by throwing all the stuff at it as suggested by some posts.

Mine has been doing that since new.


A second thought here. If it bothers you you might consider looking in the owners manual and see if it has a fuse. maybe pull it and disable the system, but that may cause a light on the dash. Just a thought.

I also suspect your mechanic needs to bone up a little bit on how that beast works.

* This post was edited 01/25/19 02:30pm by Dave H M *

rrupert

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Posted: 01/25/19 08:23am Link  |  Quote  |  Print  |  Notify Moderator

bguy wrote:

Does it have hill assist?


X2


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Dave H M

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Posted: 01/25/19 10:40am Link  |  Quote  |  Print  |  Notify Moderator

ommon guys, OP answered the hill assist a few posts back. [emoticon]

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