Brake Pedel Issue
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From: Alabama
Brake Pedel Issue
Truck details are listed in my signature....
Just picked it back up today from the transmission shop (SUPER GLAD TO HAVE IT BACK
)...on the way home noticed the brakes were getting very spongy to say the least! So a break job is in the works first of next week...the other issue I found was that the break Pedal no longer comes all the way up (don't remember it doing this before the transmission shop, but not sure if anything he would have done (rebuilt transmission) would have caused it...anyway, it causes the break lights to stay on even after I turn the truck off? Is it just in need a break job, or could it be something else?
Second Question...what type of breaks do you guys buy for your trucks? It is a daily driver, no major hauling (lawn mower, some scrap stuff to the scrap yard occasionally)...Suggestions?
Thanks!
Just picked it back up today from the transmission shop (SUPER GLAD TO HAVE IT BACK
)...on the way home noticed the brakes were getting very spongy to say the least! So a break job is in the works first of next week...the other issue I found was that the break Pedal no longer comes all the way up (don't remember it doing this before the transmission shop, but not sure if anything he would have done (rebuilt transmission) would have caused it...anyway, it causes the break lights to stay on even after I turn the truck off? Is it just in need a break job, or could it be something else? Second Question...what type of breaks do you guys buy for your trucks? It is a daily driver, no major hauling (lawn mower, some scrap stuff to the scrap yard occasionally)...Suggestions?
Thanks!
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Joined: Nov 1999
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From: Anderson Northern Ca
Brake problems
CalebJns, Wagner or Bendix are both good parts suppliers for brake parts.Sounds like your master cylinder is going south,brake fluid may be getting past the plunger seal in the master cylinder and building up behind it. Last winter in Sonora it got so cold the rubber plunger in my master cylinder shrank enough that when I stepped on the pedal it went straight to the floor. It took several minutes for the heat from the engine to finally get it soft enough to flare open and work properly.I installed a new master cylinder and problem solved. Sometimes the seal behind the master cylinder works so well that no power steering fluid that gets around the cylinder plunger can leak out to let you know the unit has a problem. As far as the brake pedal not coming all the way up I would check to see if something is hanging up under the dash,might need to lube the brake pedal pivot, return spring might be stretched out or broken, the brake light switch could need adjusted or could be a bad brake booster.
"bowties in the rearview mirror"
"bowties in the rearview mirror"
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From: Alabama
Cool, thanks...I figured I would check everything in the a.m. when I actually have some light...the fluid seemed good in the master cylinder, but it does sound a lot like what you described...I'll see about ordering one in the morning as well...bad news /good news...I'll be out I'd town until Saturday afternoon, so (bad news) I won't get to drive it or work on it...(good news) I won't get to drive it 
I'll work on it a little in the morning before I have to head out...how in depth is the master cylinder swap? Doesn't have a power booster, not sure if that's good or bad? Advantages/Disadvantages?
I'll work on it a little in the morning before I have to head out...how in depth is the master cylinder swap? Doesn't have a power booster, not sure if that's good or bad? Advantages/Disadvantages?
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From: Alabama
Where exactly did you pray the WD40? I checked my fluid it was low, added some and breaks improved drastically, but the pedal is still sitting low..got it held up right now with a bungie cord, do the brake lights will stay off...will have to work on it later this weekend, causevim heading out of town...But I did stop and check price of new MC...less than $20 for a new one...how difficult is the change? No power booster on it?
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From: Alabama
Ordered a Pedal Release Spring for the brake pedal from LMC, hoping it will fix the issue...this was the only exploded view I could find...looked through my Haynes Manual, and couldn't find anything...now to get it in and replace it (when it comes in by the end of the week)...
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From: Alabama
FIXED IT!
In the picture above I don't see it listed, however right above the brake pressure switch is a bushing (on mine anyways there is)...you will need to make sure that this bushing is tight...mine had worked its way loose and was allowing the brake pedal to sag...upon tightening it up the pedal comes all the way back up to the position it is supposed to be in...You will need a 9/16" socket for the right side nut, and a 3/4" wrench for the left side square nut...total time to fix 5-10 minutes...frustration level to fix 7ish...it is in one of those "really, why on the green earth would you ever put a bushing there?"!!! Forgot to get pics...but oh well...that fixed mine...will probably replace the spring I purchased earlier...or just keep it around in the case it ever wears out...hope this helps everyone...makes me feel better that I don't have to have the bungee strap on it anymore...
In the picture above I don't see it listed, however right above the brake pressure switch is a bushing (on mine anyways there is)...you will need to make sure that this bushing is tight...mine had worked its way loose and was allowing the brake pedal to sag...upon tightening it up the pedal comes all the way back up to the position it is supposed to be in...You will need a 9/16" socket for the right side nut, and a 3/4" wrench for the left side square nut...total time to fix 5-10 minutes...frustration level to fix 7ish...it is in one of those "really, why on the green earth would you ever put a bushing there?"!!! Forgot to get pics...but oh well...that fixed mine...will probably replace the spring I purchased earlier...or just keep it around in the case it ever wears out...hope this helps everyone...makes me feel better that I don't have to have the bungee strap on it anymore...
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Ford Parts Specialist
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From: Simi Valley, CA
for the brake pedal from LMC, hoping it will fix the issue...this was the only exploded view I could find...looked through my Haynes Manual, and couldn't find anything.Did you happen to look at your brake pedal mechanism before you bought this so-called "Pedal Release Spring" to see if it has one?
Prolly not.
Lotsa luck, because you cannot replace something that does not exist! There is no such thing as a brake pedal return spring-none!
The only spring found in this location is the clutch pedal return spring and if you have an A/T, you don't have one of these, either.
LMC has no figgen clue!
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From: Alabama
I did look at it...mine is attached to the clutch side (at one time my truck had a manual transmission) it appeared to be stretched a little, however upon further investigation...after it stopped raining, I figured out it was a loose bushing...tightened it up, no more sagging brake pedal...the spring from LMC wasn't but $5.00, so not out too terribly much
Ford Parts Specialist
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From: Simi Valley, CA
I did look at it...mine is attached to the clutch side 
(at one time my truck had a manual transmission) it appeared to be stretched a little, however upon further investigation...after it stopped raining, I figured out it was a loose bushing...tightened it up, no more sagging brake pedal.
(at one time my truck had a manual transmission) it appeared to be stretched a little, however upon further investigation...after it stopped raining, I figured out it was a loose bushing...tightened it up, no more sagging brake pedal.D7TZ-7534-A = 7 1/2 coils, 4 7/32" long / Use w/400 / D7TZ-7534-B = 7 1/2 coils, 3 3/8" long / Use with 300/302/351M
There is NO SUCH THING as a brake pedal return spring = NONE! There is no illustration nor a part number for any such thing in the '73/79 Ford Truck Parts Catalog.
LMC has no friggen clue listing a brake pedal return spring that does not exist. Ridiculous!
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From: Alabama
Then that's what it is...it's #9 on the page I listed above...
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From: Simi Valley, CA
#9 is the phony baloney brake pedal return spring. Look above and just to the right of the clutch pedal...see that shaded spring?
That's the clutch pedal return spring...LMC doesn't offer it, why it's shaded and has no part number.
I'm 67 years old, was a Ford partsman for 35 years (1962/97), so I've been looking up parts for these trucks since they were brand new.
The second I read where you bought this so-called brake pedal spring, I laughed so hard, I damn near fell oughtta the chair, cuz there isn't one.
That's the clutch pedal return spring...LMC doesn't offer it, why it's shaded and has no part number.
I'm 67 years old, was a Ford partsman for 35 years (1962/97), so I've been looking up parts for these trucks since they were brand new.
The second I read where you bought this so-called brake pedal spring, I laughed so hard, I damn near fell oughtta the chair, cuz there isn't one.
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From: Alabama
I ordered number 9, however after the fact, I do not need it as I found the issue to be one if the bushings had worked itself loose...it is now tightened up, and working properly...
Ford Parts Specialist
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From: Simi Valley, CA
It's time to replace those two bushings, otherwise you will soon have other problems. Once the bushings 'go away' the shaft rides on the bronze bushings that were only furnished with the bracket the pedal is suspended from.