Ford 7.3L Power Stroke (1999-2003) :: Steering Intermittent Or No Power Steer
Jun 26, 2015
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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I have a 2000 Excursion. This weekend, I noticed some intermittent failure of the power steering where it seemed like the pump was not engaging and then would all of the sudden. Deciding to try to head off a failure, I got a reman unit from Oreilly and installed it this morning. It was fine when I tested, had good brakes and went locked to lock quietly without fuss. Let the house and within a mile, I lost steering and brake assist. I stopped and turned around, but what I am noticing is that at idle, I have no power steering, but when the RPM's are up, I do.
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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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I have a F350 that has intermittent power loss.
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Intermittent loss of power (could be describe momentarily stuttering) with momentary illumination of the check engine soon light. Its only happened a couple of times. Maybe about a year ago (I changed the fuel filter after it occurred). It occurred again about a month ago and then again yesterday. About a month ago I had a friend with a scanner look at the codes and he said there was only one and it was for low fuel pressure. Its been maybe 5k since I changed the fuel filter.
The truck is driven intermittently, maybe 5k or 6k a year, and usually parked with a full tank of fuel. What areas I should look at to correct this? I got my stock 2001 F350 4x4 manual transmission in 2004 with about 157k miles. Today I've got about 228k miles.
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I have an Excursion with 220k miles. I've owned the truck for 6+ years and had very few problems. I change my own oil and fuel filters, but beyond that I know next to nothing about the diesel motor. I do run a DP Tuner with the standard 80 hp program. And a 4" exhaust. Everything else is stock. I do keep it plugged it for the oil heater and the battery tender just about all the time now.
This latest issue started yesterday morning when my wife jumped in a cool truck to take the kids to the dentist (not warmed up but still 55 degrees ambient). A few miles down the road (35 mph max) the motor began stumbling and rocking and black smoke coming from the exhaust with reduced power. She pulled off and kept it running (very rough and rocking) and put it in park for a minute. When she put back in drive, it shifted heavily but the power was normal so she went on her way without any problems. The only report I got sounded like the motor was just cold and rough, so I thought nothing more of it.
Yesterday evening we drove it about 70 miles on the highway (72 mph max) with no issue at all, but when we continued on surface streets toward our destination (50 mph max) it did the same thing, but would not settle back down. I kid you not that it went through gallons of fuel the last 12 miles or so, just dumping black smoke out the exhaust. It felt to me like we were running 1/2 the motor, like the plugs weren't lit. Very rough and rocking and very little power (comparatively, at least). I had to switch to manually shifting the trans to get going and the shifts were much rougher than usual. Idle was low and rough but it never stalled. Behind me there was a huge smoke screen this entire time.
We made it to our destination and parked it. Did our thing and after 5 hours went out with finger crossed. Started right up and ran perfectly the entire 91 miles home. No motor or trans issues at all. Currently running 10/40 synthetic oil that I just changed about 2000 miles ago. Oil level is perfect. 3/4 tank of fuel with standard level of Diesel Kleen added. Fuel filter is less than 10k miles old. Temps yesterday were 65-70 on the drive down and 50-55 on the way back.
I jiggled all sorts of connectors this morning and didn't find anything loose.
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So, I'm replacing the Steering Box today and read an article that said you should replace the pump at the same time. what do you all think?? I have clear access to it now and they are not all that expensive?? Or are the ford one's bullet proof and leave it alone???
I don't have any leaks and it feels ok I guess..just pushing close to 200K on 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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I have been noticing my brake pedal is very firm on and off also my power steering seems to get harder to turn than other times. But today i was sitting at a few lights and could hear my power steering pump growling at me intermittently if you want to call it that.
Also sometimes my truck will pull to the left or right then it goes away if i hit the brakes again. I don't see how the hydra-boost system would do something like that. But its not the slide pins because i just greased those along with new brakes and rotors all around at the beginning of winter.
I noticed when I grabbed my fluid lines going to the hydra boost from the power steering pump they seemed to rattle very rough so that makes me wonder if the pump isn't going out. How are the brakes supposed to be on these trucks? nice and soft? rock hard?
By the way truck is an 02 with 144k on it
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My power steering is only working when i turn it to the left. When I turn it to the right i have to get a 1/4 of a turn in until the power steering takes over. So i get under my truck to discover what seems to be a piece of my tranny missing. How screwed am I ???
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My high pressure power steering hose just blew at the "B" nut at the pump. Meaning, the fitting is still in the pump but the line is out. Do I need to replace the whole line or is there a retainer I can swap out?
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Ever since i bought my truck i have had a bad power steering whine. Replaced the pump and its still there. I got the truck in 2006 and think i replaced the pump in 08 maybe. Anyway I've purged, bleed, changed the fluid. Pulled a vacuum on it and still no luck. So I've just dealt with it for 11 years.
Well i can remember reading something somewhere about ford up-dating or redesigning one of the power steering lines that was causing this noise.
My father inlaw just bought a 02 and its so pleasant not to hear that when riding in his truck. It made me want to investigate the matter. SO if its as simple as a updated line I'm buying one asap. He got rid of his Chevy because of the reliability I've gotten out of mine.
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I lost a hose in the driver side front wheel well this morning while pulling RV to a campground. By the time I got there and got the RV disconnected, I lost all power steering. I reconnected the hose using a zip tie and have a friend bringing me fluid to refill reservoir.
Is my pump toast now? Can I refill the reservoir and prime the lines and be good to go?
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My power steering pump camp keeps coming off. Almost like it's got too much pressure. I'm stumped as to why but it makes a mess whenever it comes off.
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While turning very slow and sharp on the farm, I heard a pop under the hood. I then lost power steering and brakes. I saw power steering fluid spurting in the left tire well behind the tire. Look under hood and saw fluid coming from a fitting on the side of the power steering pump. I have attached a photo....one photo with nothing and then other with a screw driver tip on the fitting.
It appears that the the pressure fitting blew out the side when I turned sharp. It has a nut from which it came (compression of some sort?). I can push the nipple of the fitting back into the nut but I guess the pressure is gone.
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I just replaced my 3rd HP power steering line last night( 3rd in 300K, always blows the same point....fitting comes apart where it attaches to the pump.
I'll start, mine have gone about 100K plus or minus 10K, almost thinking about making it a 100K maintenance item.
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I just replaced my power steering pump and gear box and I flushed the system until the fluid came out good. I have done the whole lock to lock and pump the brakes but nothing is getting better.
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Looking for a write-up on replacing the seals on the hose that leaks at the power steering pump? I replace them once but may of over tightened them. I pour in atf and see it dripping on drivers side of power steering pump. Can I just use regular o rings?
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Initially had indications of a leak under the wheel arch on the drivers side.
About 3-4 months back replaced both PS lines and the leak stopped - briefly (maybe a couple a weeks).
Now the leak is back, but what's interesting is I lose more ATF fluid on a single long haul run than I do running round town for 3 weeks. I can't work out where the leak is coming from to identify what else to replace - short of just buying a pump and reservoir and replacing them as I've already done the hoses.
My turbo cooler pipe was hard up against the old PS pipe where it entered the side of the reservoir until I did the replacement hoses. Now I have it out the way but I'm wondering if it's caused some unseen wear or damage.
If I just do the pump to see if that works are the reman units any good out of Autozone or O'reilly's?
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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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