Ford 7.3L Power Stroke (1999-2003) :: Hard To Steer - Sometimes Lose All Power Brakes
Sep 5, 2016
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.
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Rebuilt the front end last year on this truck. I now own it. Front end is really tight, not as in hard to steer. It doesn't straighten up when you go around a corner completely. Going straight it drifts, 0 slack in the steering wheel. Constantly correcting it. Now my 95, I can turn it slightly going down the highway and it will turn back straight.
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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.
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My 7.3 power steering is acting up. Feels like I am up against a rock. At slow speeds like parking lot maneuvering I struggle to turn wheel. Then all of a sudden I'll get power steering back and wheel will rapidly turn. Freaky.
Brake pressure is fine. They shutter pretty bad even with the new rotors I just put on but they have good pressure. But the steering is intermittent or no power steer.
I saw online to run engine at 2000 rpm and try steering but no change. Still no power steer. There is fluid in reservoir. There is fluid seeping up steering column from steering box. No clue if this is related or unrelated.
How to troubleshoot further. I hate throwing parts at problems before truly diagnosing. Also have pretty aggressive lurching during turns in four wheel drive. It's present on dirt road but worse on pavement. Don't know if this is related or not.
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Problem started 2 days ago, driving around and my truck would stumble and lose power. Give it gas, won't rev up but it cleared and ran fine for a mile or so then it comes back (off and on all the way home). Check engine light didn't come on the first few times, came on a couple times on the way home (maybe 4 mile trip) but goes off when the truck runs fine. Thinking it was maybe the fuel pump (got 140K on the stocker). Talked to a few friends, some thought it was algae build up in the tank that was clogging the filter on the pump, underhood filter changed a couple hundred miles ago. Looked fine with slight brown build up at bottom of bowl when I replaced it.
Ran it around yesterday with a friend of mine and his scan tool hooked up, acted up once, check engine came on for a few seconds and shutoff. No code and for some reason we couldn't get it to live data while driving. I dumped in an algae eater yesterday and left the truck overnight since I had to work. Got home this morning to run her around the block to circulate the eater. Truck started and idled fine, went to pull out and she won't rev up, pumped the gas and NOTHING! Check engine light is on now but don't have a scan tool handy to read it. I heard the truck will store the code?
What this problem might be? What's a good scan tool for our trucks that can live data as well? CPS is good and already did the UVCH mod.
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I have a 99 F 250 7.3. It runs fine at idle even for a long time. When I drive around the block a couple of times it will start chugging and lose power and shut off. I have been mixing fryer oil with the diesel. I changed the fuel filter, oil change, crank sensor and fuel pump. I added 15 gallons of diesel and diesel treatment. Pulled fuel filter and bowel is full I'm not sure where to look next.
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I have a 2001 F350, 7.3. My service engine light came on and immediately the truck started to run rough and lose some power. I've checked the under the cover connections and they were both connected, I replaced the cam position sensor and I still have the same problem. The worse part of the hold thing is that there are no codes stored so I'm flying bind. Where to go next.
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I just wanted to share with you all a cautionary tale about belt tensioners and idler pulleys. I am now a firm believer in installing the aforementioned items when you replace your drive belt. 15000 miles ago I replaced the drive belt and didn't heed the warning of some here on the forum.
For the last month or two I have noticed what sounded like road noise which I dismissed because I had just had new tires installed that had a more aggressive tread pattern than my previous tires, I also noted that the ECT had been a bit higher than normal, like running in the high 190's to low 200's on average.
Well while driving today I get the alternator warning light and lose power steering and soon after the brakes got stiff, this was followed by ever increasing ECT which got to 242* before I could get it off the road and shut down. It is too early to tell if the noises and the ECT temp rise were the result of this tensioner going out...
For what its worth the only tools required were a 10MM end wrench and a bit of skin to get the job done.
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What would cause me to lose accelerator pedal function after hitting a bump? The engine remains on, the CEL comes on and after a few seconds or shifting into neutral and back into drive I regain the accelerator again and the CEL goes out
The truck shows no codes. It is if some connection makes/breaks intermittently when I hit a rough pavement. Also, she sometimes won't shift in reverse. Could it be related?
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I picked up a 2003 6.0 awhile back went ahead and did studs,gaskets, delete. Was driving it and seemed to lose power, started coughing and carrying on blowing bluish white smoke then shut off. Ended up hydrlocking #5, Oring on injector was tore when took out. Put all back together, ran horrible, did a balance test with AE, showed #3 injector, replaced, ran horrible, did AE dropped #1 injector. So in process of replacing the rest of the injectors. Just wondering why it is or was dropping them 1 at a time. Ficm was showing 47.6 to 48.6 volts, could that be it?????
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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.
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My 2003 ford expedition with the 4.6 v8 engine is having an issue i cant seem to pin point. The lights will get bright and then dim and the engine will die and I will lose power steering and brakes, it will start back up when i put it in park. Also while I am driving randomly the rpms will shoot up to between 3 and 4,000 rpms and go back down. I have seen a video on youtube that says the fuse box in this model is very likely to short out and ruin the circuit board. Mainly looking for any experience any of you have with a issue like this. The check engine light is on, Showing two codes for running too lean and a code for Idle air control valve. Mileage is 239,000 ...
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Iam looking at a 2000 7.3 Powerstroke that has some problems first it is hard to start cranks like it has a dead cyl. Second after starting it has no power not even enough to move. At first it would only run if held wide open but once it warmed up it would idle and rev and move but barely still had a miss. The weird thing is it did not smoke blue-black or white also no strong smell of diesel and no smell of oil at all. The truck has 230ish miles and there are no maintenance records.air filter was new.
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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?
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I drive a new to me 2005 F350, he has a 2001 F350. While we were talking he said he didn't think his pickup had the power it should have. He pulls a 5th wheel camper that weighs around 8000 pounds fully loaded. He said it takes a couple of miles to get to 55 mph, and it is hard to hold the speed. It doesn't have the power it did when he first got it last year. He was told that a diesel is slow getting started. He rode with me in mine, when I dropped it about half throttle to pass a slow car he said he could tell mine had way more power.
His check engine light is not on, it starts good both when hot and when cold. It runs smooth, no miss as far as I can tell listening to it. What are some common issues that could cause this? He did just change the oil and fuel filters, not sure about the air filter. He said the power loss came before he serviced the engine, and did not improve after the fuel filter change. Where to start? He was also told to check the filter inside of his fuel tank, so he is getting ready to drop his tank.
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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..
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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.
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My e99 f250 has been getting harder and harder to start over the last year.
I think one of my batteries is dying or dead but it still cranks fast while it does.
For instance when I tried starting today it seemed to crank just like normal but their was some relay clicking inside the cab that was abnormal.
My understanding is aside from cranking no power is required to start the motor? what if the dead battery is taking some cranking amps from the good battery preventing the computer from getting juice?
would the truck throw a code if it was a glow plug?
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So I have a 2000 F-250 7.3 and my over drive won't work. I also had hard shifting from 3rd to 4th and 3 gear wouldn't try to shift until about 2500 RPMs which is high. I replaced solenoid pack and no change. I have rebuilt the tranny and found that OD snap ring had came off I put upgraded spiral ring on. When I went on a test drive I found out nothing had changed except shifted smoother. So I changed valve and accumulated body still no change. Truck is throwing 4 codes:
P0733 Gear 3 incorrect ratio
P0750 Shift Soleniod a fault
P0783 3-4 shift error
P0541 intake air heater a circuit low
Could it be PCM??
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I have run into a problem. My early '99 7.3 PSD decided to throw a very hard shift at me the other day, lit up the SES light and I had to limp it home going 5mph.
I looked on here and found most problems that caused power loss/engine die and replaced the ICP, IPR, EBP and tube, and the CPS. I also did an oil change after all of that to make sure everything was clean when I went to start it up.
BUT, when I tried starting it, nothing happened. It cranks, but does not start. What is the problem? I watched hours of videos and read hundreds of pages of instructions on how to replace everything, and now the truck won't start.
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I noticed my '99 started getting difficult to get in gear & shift, within a coupe of days the peddle was barely off the floor before it would engage. A day later it started 'creeping' if started while in gear. Replaced the master/slave cylinders with no change.
Is a clutch replacement the next step? Just thought I would ask before throwing money at it, since the only other times I've had clutch issues there was slipping or it just plain exploded.
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