Ford 7.3L Power Stroke (1999-2003) :: Brakes Sometimes Soft Other Times Firm
Apr 16, 2016
So the other day I had someone change lanes and slam on the binders right in front of me which caused me to slam on mine. Luckily no one got hit. Now my brakes feel different. Sometimes the pedal feels nice a firm other times it pushes in 2-3" before starting to brake. The fluid level has not changed in the resevoir and the hydroboost appears to be working fine. The power steering is still operating as before. I have checked the calipers and none are leaking.
My suspect is the master cylinder but was wondering if the symptoms are common with the master cylinder failing? I'm thinking internal o-ring has failed due to the near accident event. I'm going to do power steering flush just because I never have. Is there anything that would display these symptoms that I could check before buying the master cylinder?
View 6 Replies
Advertisement
I am fixing up a Mrk IV Golf. One of problems I am having is that the brakes are not firm despite being bleed multiple times. The brakes work but the pedal does not inspire confidence, and I know there is braking performance being left on the table. The brakes are to large and the car is to small to brake as slow as it does. Are Golfs a cross bleed system? I have be bleeding them like I would on an old American car, which is what I normally work on.
View 2 Replies
I have a 2001 F350 7.3 the truck will at random times loose power and almost shut down. A while back I had an issue with the uvch plugs and changed that out. Truck ran fine till I got some dirty fuel from a diesel tank at my friends farm. I did the hutch mod cleaned the tank and now have a frame mounted screw on filter before the pump. I cleaned the fuel bowl and changed the filter. Fuel pressure stays at 59psi and drops to 56psi wot. The truck is tuned with an edge programmer. After these mods the truck ran awesome for over 2000 miles. Now it has the above stated problem. I have fuel and hpop guages along with egt and boost. During the problem egts will increase rapidly and it seems like it is starving for fuel.
Hpop gauge reads 3300psi or above during wot and shows good pressure during these mishaps. I have auto Enginuity and I get a different reading at wot of only 2600 psi. The hpop gauge is tapped into the icp sensor per instructions and has been installed this way for a while with no issues. The tune has been on the truck for over 40000 miles. The only thing that I can come up with is it will occasionally throw a p1211 under wot or pulling my Gooseneck Dump Trailer when loaded. However it acts up sometimes and doesn't throw the code. Sometimes you can shut it off and start it back up and it's fine other times it will last for the whole day. My only guess is low pressure from the hpop but I don't reflect this from my gauge only on AE at wot. Wouldn't a bad pump act up all the time? Am I correct to think it is just the ipr?
View 2 Replies
Today my 01 f250 super duty has started making (5) beep tones (3) times in a row. I have my seatbelt buckled, all my gauges show ok. What is this tone indicating?
View 10 Replies
My 2002 f350 7.3 was given to me in July of this past year. I was 15 at the time and I was told that it was hydrolocked. Funny enough this is where I came to learn how to fix it, and this is the first time I have had to ask a question . I pulled both heads and replaced all 8 injector cups, I also had the heads re surfaced and had 7 injectors rebuilt and 1 replaced. I got it on the road in February around the 20th and since then I have put about 300 miles on it. Today I stopped at a red light and made a left turn and as I went to accelerate the truck jolted forward a few times and it felt like a tire was going to fall off while accelerating(only to 30mph). I pulled into a driveway to check all the tires, then I turned around and my foot was hard to the floor and the truck wouldn't go over 15. Diddn't smoke when it first happened, but after getting it off of a flatbed I turned it around and it hardly had enough power to get up my driveway. And I noticed it was pushing a steady stream of white smoke, the oil is clean and the oil cap doesn't get blown off at idle when I set it upside down on the valve cover.
View 14 Replies
Yesterday my truck began to give me some problems starting. The engine turns over just a couple of times then it sounds like the starter disengages and winds up. it took multiple attempts but it finally fired up. Does this sound like the starter or could it possibly be the starter relay?
2002 F350 CCLB Lariat 7.3
View 7 Replies
I have a 1999 Ford F-350. I have six codes from my truck. The codes are P0237 P1119 P1690 P0500 P0603 P0344. My truck runs, but likes to stall out on me for no reasons at times. The other problem I am having is between 1,800-2,500 rpms, she shutters or pops.
View 7 Replies
I've got an 01 7.3 lariat 4x4 with an 03 7.3 engine in it (long story behind that) but basically I noticed one day I had a hissing underneath my dash and my brake pedal was a little spongy but my truck stopped, well before I could get it to a shop and checked out it went bad. Coming up to a stop sign and as normal hit my brakes and right before it came to a complete stop the pedal shot to the floor and I lost power steering as well as brakes and went rolling out in the road and almost got hit. So it's been parked ever since and I have changed the hydroboost, the power steering pump twice, flushed everything and bled everything and still nothing, can't even find any leaks. What to even replace now or whether to just take it to a shop and spend another small fortune.
View 7 Replies
I've got an E99 powerstroke. Recently it's been getting hard to steer, if not impossible. When I'm parked i can't turn the wheel and it gets better if i Rev the engine up, driving is usually ok and going around corners. It's just low speed, low rpm that it won't.
Also every once in a while when braking it feels like i lose all power brakes. The pedal goes to the floor and the brakes let go, then i can feel the pedal pump back up and i get a good feeling brake pedal again that actually stops well. All this happens within about a seconds time. But the steering is by far the worst.
I just did the power steering flush with atf and it didn't work. I'm thinking i need a new power steering pump, but want to ask here first to make sure. The truck has 290,000 on it, and it never has been replaced to my knowledge. I bought the truck with 147,000 however so it may have been done before that.
View 3 Replies
My husband is on the interstate on his way home from work. His brakes went out, completely!!! No e-brake either! he replaced master cylinder about a month ago, brakes worked ok for about a week and started messing up again. Now he has no brakes what-so-ever... is there anything he can do to get home safely? I believe he has hydroboost unit.. he mentioned before a tiny leak from ps pump... brake pedal goes all the way to floor... no stopping..
View 12 Replies
Driving home from movies tonight, I lost power steering and power brakes and the pump started growling. Looked in the reservoir and it was all foamed up. Within the last 20k mi I have flushed the system and refilled with power steering fluid. No apparent leaks at this time. And happened like someone flipped a switch. Fine one turn, nothing the next. What are the chances this is a fluid issue and not a mechanical one? Start with flushing system and adding Mercon V? Or is it likely pump is damaged?
View 7 Replies
Looking for some tried and true fix to make these parking brakes hold just a little? Winter coming and with a six speed would like some resemblence of a brake....short of a brick in the drive. I have adjusted.....no luck. New cables ( thinking maybe stretched)..no luck. Shoes are new. Did notice levers where cable attach look to be worbled out.....gonna try to tighten that are up a little to see if that works but.
View 7 Replies
Was making a U-turn, and out of no where, had no brakes and no steering.. Not a fun situation to be in....
View 14 Replies
Will it work? My ring and pinion is fubar and I found a 06 with 99K local. I know I would have to change the brakes to fit my 16" wheels...Anything else y'all can think of?
View 3 Replies
I was driving on a short business trip and I noticed what I thought at first was clutch smell, and then I realized I had a brake overheating. I pulled over and the front right rotor and hub were very hot. The caliber not so much. I let it cool while I was at the meeting. About 1 1/2 hours later I jacked the truck up to see if the bearings felt bad. Seemed fine so I drove home trying not to use the brakes and the heat did not return. I replace the caliber with one from Ford, but the only lines I could find were from CARQUEST and they are made by Raybestos. I am assuming that these lines are made in China.
I have been looking for some braided SS lines, but can't find any for a 2 wheel drive dually with 4 wheel ABS. Where I can order some better lines???
I hated my old 1994 F-350 that had those Metal/rubber pins, they would mess up and overheat also, I thought that my 2000 would not have this problem, I was wrong.
FYI, about a month ago I replaced the rear pads, and changed all the brake fluid with Valvoline synthetic DOT 3. I installed Akebono pads on the rear and just today Akebono on the problem front side. Will change out line and pads on driver side later this week. I hope I got if fixed.
View 10 Replies
I just bought my first truck and it is a 1999 (Made in late 1998) F250 7.3 Super Duty it is 2WD with rear ABS and has 290k miles on it.
It has what seems to be the common brake shudder while stopping. I know the only solution is to replace the rotors and I have been looking all over the forums and internet and just don't know what to go with.
I'll be using the truck to do light farm work, pickup lumber, get a bed load of dirt and maybe pull a normal car trailer every now and then.
I'm wanting to get something that will prove to be trouble free long term and be good enough for what I need with out over paying for something that I will never fully utilize. I have looked at
R1 Concepts
Frozen Rotor
EBC - which doesn't have 2wd front rotors
View 3 Replies
My son just bought a 97 F150 with the back brakes blocked off. The front brakes had about full pedal when the was on. We changed the front calipers and brake pads. Bled them came back with great brakes (with back brakes blocked).
Then we found out the back calipers was none so we bought all new parts for both back brakes, found some leaks in the rear lines fixed them. Now we bled the brakes with the motor off till no air came out. Solid pedal. Then turned on the motor and the pedal goes down 3/4 of the way now easy.
Stops on snow good no tire sliding. Turn off the motor has solid pedal again.
View 2 Replies
Tires have less than 10,000 miles on them, and air pressure is within 2 lbs left to right side.
New calipers.
New soft lines.
New hard lines.
New pads.
New rotors.
New ball joints.
New tie rod ends and center link.
New front axle universals.
Brake fluid and all other parts are less than 6 months old. I can let go of the wheel and the truck tracks straight, 10mph to 100 mph. Whether I am going 10 mph, or 100 mph, when i first step on the brakes the truck jumps right. Needless to say, the faster i am going, the worse it jumps.
After first brake application, truck tracks straight. Let go of the wheel and it tracks straight from 100mph to a dead stop with brakes applied after the initial jump. Whether I am hard on the brakes or gentle, it does not pull at all. Only on the initial step on the brakes.I am at a loss as to what the heck is wrong with it.
View 14 Replies
Picked up my 5th wheel this afternoon from being raised 3". Dropped over the 10 percent grade down the hill to normal driving. Had the trailer brake controller to boost #2 (Prodigy controller). Had to brake pretty continuously, (tried to stay off it a bit, but is is about 10 grade for about 3/4 mile. Put the auto trans in D2 to get brakes come to the red light at the bottom. Noticed a puff of smoke at the front. Driver side, didn't notice passenger side.
New pads and new slotted rotors new maybe 1,500 miles ago. Not liking that action, but need thoughts. Want to put a thousand or 2 miles towing this summer and accompanying mountainous terrain and back.
2000 F350 Lariat Super Duty 7.3 4x4 NOT a dually.
View 1 Replies
The problem occurs when you hit bumps while braking, or if you get on the brakes to hard. It seems like the brakes lose pressure entirely and the pedal goes to the floor. It kicks back in when the ground smooths out, or if you are braking hard it slowly grabs again. At first i thought it was sliding, but it definitely is not. The truck appeared to be equipped with abs but the previous owner seems to have cut the abs wire/sensor at the hub. Another thought i had is maybe the brakes need to be bled and have fresh fluid put in them, I have not tried this yet (Plan to this weekend along with a dozen other things). Its rather scary when it happens. but i didnt think much of it until i nearly rear ended someone..with my younger brother in the car. Now i need to fix this asap.
View 14 Replies
I just joined as I bought my '97 F-150 5.4 4X4 about 3 months ago. The dealer gave me a 6 month warranty but hasn't honored it at all and I've had one problem after another. That's another story though but right now I'm just trying to fix the important issues. The problem at hand are my brakes.
I was noticing a couple days ago (maybe I never noticed it that much as it was a new vehicle to me) that when I apply the brakes it sounds like a bicycle pump and the pedal travels nearly all the way down. It doesn't hit the firewall but I'd probably guess it has 3 more inches or less until it bottoms out. The hissing only occurs as the pedal travels and stops when the brake pedal isn't moving.
Now I'm not sure if the hissing sound is normal as I replaced the brake booster (from the junkyard though) and the new one still hisses when I apply brakes. The brakes seem to work okay, could be more sensitive it's just the pedal feels soft until it almost bottoms out like I stated before and the the brakes grab a little bit harder. What could it be?
View 2 Replies
