Ford 7.3L Power Stroke (1999-2003) :: Power Steering Loss Intermittent - New Pump?
Jun 2, 2016
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 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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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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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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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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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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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 am still failing to appropriately diagnose the problem(s) with my '03 Ford E-350 7.3L Powerstroke. This van has only 69,000 miles on it. A week or two back (just a few days back in work time) it suddenly went from running perfectly smooth, clean and wonderful to this:
- Zero power. Putting the van in gear and flooring the engine causes lots more smoke not nearly any rev of the engine and just a crawl forward.
- Lots of smoke out the back exhaust, whitish. I cannot discern wether it smells like diesel or oil (because I'm ignorant here), but the smell is very strong.
- After warming up and idling ~ 15 min I check under the coolant cap and see no signs of bubbling or disruption (from opening the cap in the coolant tank).
- After warming up there are no warning lights visible on the dash, and I don't have a computer to read codes (if there are any to read).
- I replaced the turbo up-pipes which had a visible leak previously. This did not hurt the symptoms, though no more visual leaks under the dog house.
- I thought maybe I put gasoline instead of diesel in the truck, not so.
- To do the above test I had to use the fuel pump to get gas out the tank to test. I hijacked the fuel pump output and turned the car on a few times to get gas out to a tank. The pump seemed to work just fine.
This was all very sudden which is perplexing, and, in use, the van was previously an ambulette and in my few miles with it (maybe 200-300 only) use was extremely light for such an engine/van, just driving around doing errands. I am not sure if this is relevant (no one has suggested so, yet) but before all this happened I uninstalled the rear HVAC that came with the van when I bought it. The AC lines were sealed under the hood. The coolant line was returned at the doghouse (you can see this at the beginning of the video).
At the moment the van has no power to go anywhere. I have not yet checked the CPS or IPC sensors, and understand this might be the next route in standard troubleshooting?
2003 Ford E 350 7.3L Trouble - YouTube....
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I have a 2001 ford 7.3l powerstroke diesel. When I first noticed the problem I was towing a trailer going up a grade and got into the throttle almost to the floor and noticed a loss of power and the service engine soon light flashing extremely rapidly a few times and never came back on. I made it home, still lacking power but not running rough. I drove the truck to work the next day and the truck was running rougher and loosing power. It ran great through lower RPM's but seemed to trip as soon as you gave it over half throttle. eventually the truck wouldn't run right at all and lacked complete power. It idled rough as well. My mechanic threw the computer on it and it said injector pressure reading too high or too low.
I was told to replace the IPR on the HPOP and I did. (I also replaced the fuel filter and changed the oil). After replacing the IPR it ran great, had full power! then it began to slowly die like it did before until it sounded like it was running off 4 cylinders again. I pulled the ipr out, cleaned it and changed the oil again. It seemed to clear it up for an hour and ran great but then began ran rough again. I also replaced the CPS sensor. I feel like its not getting enough fuel or something, im just wondering if it could be the ICP or the lift pump. There is no check engine light at all. Its just got me stumped because cleaning the IPR clears everything up.... temporarily.
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I just recently bought a 199 E350 4x4. I changed the injectors and it drove a little bit better but was still lacking power and was throwing a p0472(exhaust back pressure code) and a p0113(IAT sensor circuit hight output) code. Last night i put a new ebp sensor and the truck came back to life for about a half mile or so then went right back to the way it was. I took the sensor back off and cleaned it in case it some how got clogged from my short ride. It surprisingly did have some soot in it which i cleaned out. Also blew air into the ebps line while still mounted. Put everything back and still nothing. What could it be? Could i possibly got a bad ebps?
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I am going along and the power just goes away. Sometimes it is a 50% loss other times it is an 80% loss. I hooked up my scanner and found an IPR code. I replaced the IPR and connector, nothing changed.
As the scanner info shows the Duty Cycle and Pressure track about identically until something goes wonky. When I loose about 50% power the pressure will not get above about 1500 psi but the duty cycle will run up to 60%. Other times when I have a bout an 80% loss the pressure and duty cycle both track low, no more than 1200psi and about 20%.
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For some stupid reason, my truck decided to lose power today when exiting the freeway. D/s egt gauge verified it with no increase in temp when stepping on go pedal. After about a minute, I could feel it gain power. So, rolled into fuel station, and topped off tank. While filling, I popped the hood and started messing with the uvch and looking around. It was then I noticed that darn hose riding on top of a ton of wires. Pulled said hose up and sure enough, a wire is shafed clean off of insulation. Anyway, something to check while looking around under there....
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1999 f250, 280,000 miles. I use Power Service with every tank, oil changes every 3500. Had a few of the injectors changed several years ago after getting bad fuel. Tranny "built" when rebuilt, about 60,000 miles ago.
Truck starts and drives every time, no miss or rough idle, no smoke. Just not as much power. It downshifts sooner and really seems to resent towing my atv trailer. Where do I start ?
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I own a 2000 7.3 6 speed with 175,000 miles. I just bought it less than a month ago and it is my first diesel.
About a week ago I stepped on the gas and it just had nothing. I have a TS 6 position chip that I unplugged as soon as I noticed the loss in power. When I first bought the truck it was incredibly fast and now it has nothing to it at all. I have to have it higher in the RPM's to go up hills (especially when its not warmed up). If I push the pedal down it will sound the same, boost will get to about 14 (without chip) and the truck doesn't let out any smoke but it just doesnt have any power at all. I recently towed another vehicle on a trailer and it really struggled with it, more than I thought a diesel should.
When the chip was in, the truck would let out black smoke even after I noticed the loss in power. That made me think that the engine was getting enough fuel. I thought there could be a boost leak somewhere but it still builds 14 psi. However, I do not feel boost kick in at all! When I first got the truck it would only build around 14-15 stock but it felt a hell of a lot faster and I could feel when boost would really kick in. I took off my intake and looked at the turbo and the fins are in great shape and there is little to no play.
What the problem could be? I don't have very much money to start dumping parts into the truck and Im not sure what to do. I guess my questions would be:
1) Is it a boost leak, fuel problem, or something else?
2) Could a gelled filter give me these problems?
3) What should I do and where should I start?
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I have been getting about a 1-2 second power loss while driving. happened last friday when at a stop light, pressed the pedal and started to go then it dropped out for a second or two and then caught right back up. only cut out twice in 10 minutes then ran fine for another week. This friday oddly enough , it happened again while driving down the road. happened about 5 different times in 10 minutes, then back to normal. I replaced the passenger uvch with dorman, but not driver side a couple of months ago . Does this sound like the other uvch, or tps?
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2002 7.3L SD ... He told me when he was taking his son to school he turned on the heater. When he did this he could feel the truck lose power, he turned the heater off and it drove fine. Turned it back on and power loss happened again. I haven't driven it to test yet or see what is happening but I also don't understand how this can happen. The heater did get warm, and he does not have to add coolant to the system.
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A little background first on my 1999 Ford F350 7.3. A few months ago I noticed i had fuel in my coolant which lead me to a cracked injector cup. I replaced all 8 cups and since I had it apart, and I bought the truck used and didn't know what had been serviced, I replaced the injector o-rings, glow plugs, valve cover gaskets, and valve cover gasket wiring harnesses. Got it all back together and had been running great.
About a week ago I was parked with engine running and the stereo suddenly turned off. A few minutes later I turned the truck off and turned it back on about 10 minutes later and it wouldn't start. Batteries appeared dead so I jumped it and made it home. Took both batteries down to AutoZone and since they were under warranty got two new ones. Figured out my alternator was bad and not charging my batteries so I ordered a new one.
Up to this point truck has been running fine. Truck had sat in my driveway for the week while waiting for the alternator. While I was out of town my father in law went to use the truck and noticed it wouldn't start. He hooked some jumper cables up and got the truck started. He said as he drove off the truck had no power and smoke was pouring out the exhaust.
I charged the batteries and installed the new alternator. Truck starts great and seems to be idling normal. When I took it for a test drive it has no power when accelerating and black smoke pours out the exhaust. The truck will barely make it up any type of incline.
I thought maybe it was the injectors not firing. Wiring harnesses are plugged in and do not appear to be damaged. I did not remove the valve covers yet as it's not difficult but time consuming and I figured since I just replaced all of it that it should be ok. I did a buzz test and all injectors passed. I get no trouble codes or check engine light.
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I have a 02 f350 7.3 with 296,000k its been running ruff lately with a serious loss in power. The truck sounds good at idle starts up fine but when im on the throttle under load it almost crackles and sometimes bucks. I thought its was injectors replaced them all with stock ford remains but didn't fix the problem. I have AE and it passes a buzz test but i did a KOER test today and it started what seemed like a misfire during the test my ICP went to 2400-2500 and my IPR was at 38%. I have already put a new hpop in a couple month back along with new hpop lines do to a burst, ICP sensor, and i rebuilt the IPR valve. Not sure if this is a problem with fuel or the hpop I have also cleaned the screens in the tank and replaced the fuel pump which were pretty bad....
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Dad has a 01 one ton with the 7.3 and isn't real tech savvy so I'm posting for him. He is the original owner and has been complaining recently about the lack of power. Particularly the upper end. He is having to downshift way more often and where he used to not have to. And we've both noticed a very noticeable shake at idle. Not a vibration but a true shake. He changes the oil every 5000 on the dot and I've gone and changed the air and fuel filter and ran hose and see foam and royal purple injector cleaner through it with no results. Truck is all stock with 225000 on it.
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