Ford 7.3L Power Stroke (1999-2003) :: Jumpy / Loopy / Rompy Sensation While Driving
Mar 24, 2017
This problem is similar to the sensation of warped brake rotors when braking but this is not a braking issue. You feel it in the seat and its a vertical sensation versus a horizontal. Sometimes it will present minimally when releasing the brake from a dead stop. it is not a speed dependent issue. Mostly I feel it when letting off the pedal and coasting. It is not localized to the front or rear axle but seems rather to be throughout the whole truck driveline...
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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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I have a 2000 f350. Lost power whole driving and won't start back up. I have checked all my fuses and relays several times. Have no power to the fuel pump. Tried running a hot wire straight to the pump and still nothing.checked my emergency cur off switch and there is no power there. Also my WTS light isn't coming on now. Tried checking the heater bowl and no power there.
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My issue can be while driving with cruise on, or accelerating, the truck just losses power, then recovers. At idle, the rpm can, but not always, fluctuate.
There is no "misfire" when it happens, but it just falls on its face. I have NO diagnostic tools, and my injectors are not stock, so I am unable to unplug my DP.
My thoughts are to unplug the ICP and give that a shot? Meanwhile, I will put in a order for a elm327
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Well, I was headed out from work this morning, on my way to fill up as I was a bit below 1/4 tank.
Truck was running good, like normal, until after 5-6 minutes, when it started running rough and had no power. Worried, I pulled off the side of the road. As I did so, it died, and wouldn't start again.
I whipped out my phone, pulled up TorquePro, and ran a code check. Nada. Well, it sounds to me like it's not getting fuel possibly, so I figure the best way to check, is to drain the fuel filter bowl, and crank it some, and check the bowl. No fuel in bowl.
Wifey came to pick me up with the can of diesel I keep for starting my forge (had 3 gal maybe?). Poured it in the tank, cranked it, no start. Still nothing in the bowl.
I'm taking her to work now, so she won't be late, then I'm headed back with a full can of diesel.
If that full can still won't get it, should I keep shuttling diesel cans, or should 8 gal or so be enough to get it back to the fuel pickup level? And if it's not fuel level, what else should I start checking on the side of the road?
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I have had this happen twice now. Starts fine, idles fine, then either sitting or just driving a block or two it starts running very rough, no smoke that I remember seeing, and now no power. Barely makes it up a hill. The first time I thought is was related to the heavy rain the night before. I had the tow truck coming and decided to try it again, this was after a few hours sitting. Ran perfectly. The second time, no wetness/rain, pulled away from the house and in a block or two, same thing ... rough, no smoke, no power. Pulled back into driveway, turned off for a minute, restarted and ran fine. Ran perfect today. What is the best injector cleaner to use in the fuel?
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Been a while... Problem today while towing... I was in some hilly areas but nothing too .. I was pulling an unloaded trailer and experienced a significant loss of power and overheating. Engine started getting hot (almost to red) and then the transmission came up in temp. Made it to a rest area and all cooled down within 2 to 5 mins... but the strange thing about the power uphill is that it is happening at slow speeds as well... boost seems normal. Recently did the injector cups, so the thermostat is new (motorcraft), coolant is new, and put new o-rings on injectors.
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The last couple of days with the temps in the 50's, my 2000 F550 with a 7.3, will start normally and idle fine. When I try to drive it, I get less than a quarter mile and it just looses power and will die.
If I flutter the pedal, sometimes it will keep running, very poorly. And when it does this, it is putting out blue smoke. After it does this, it will run fine. Just like nothing is wrong.
What do I look for, or is this normal. I have had the truck since last October and this is the first time it has acted like this.
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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 brought my truck to ford because I thought I was having transmission issues, but they are telling me that my transmission is fine, that I need to replace my number 8 injector. None of these symptoms sound like injector issues:
-Shifting from park to reverse, takes a couple seconds to shift, then jumps.
-Coming to a very slow stop, truck is a little jumpy at around 2-3 mph
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I have a late 99 f350 psd with 94k miles. I have had it a little more than a year. It has been a great truck until last night. left my parents place drove up the road about 40 mph and truck just died. I tried to restart with no luck. I don't have a scanner to pull codes, but I immediately thought cps. I went to town and got one, replaced it and had no change. Still crank, no start. I thought maybe fuel so I drained the bowl and pulled the filter. I found the previous owner had torn the bottom oring on the filter when he installed it.
Part of the oring was laying on the bottom of the fuel bowl and part of it was still in the filter oring groove. I removed all the 2 chunks of oring and reassembled the filter and primed the bowl. Cranked the truck, still no start. I unplugged the icp sensor and after cranking a few seconds, the truck coughed. I tried starting again and it fired up. So I shut it off and plugged in the icp again and it restarted no problem. Is that an indicator the icp sensor is shot? Or is there another problem I need to dig into.
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Last week the engine in my truck was shutting off while driving. Happened to me 3 times over the course of two days. The first couple of times, the engine was dead for 3-5 seconds and then the engine would come alive and drive normally again. The third time was about a 10 second event...same result, engine refired on it's own and drove normally. I was in motion all three times so the engine restarts all occurred before I was able to bring the truck to a complete stop.
No check engine light...(I didn't pull any codes because I didn't have my laptop with me). So, I decided to try a new CPS. I had one in my glove box since 2003 so in it went. It replaced a black CPS that I purchased from Riffraff about 100k miles ago. The new CPS seems to have done the trick. I've driven about 500 miles since the swap and the symptom has not returned. I wonder how long this one will last. It's a Ford replacement part so maybe I'll get another 100k miles...
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i just bought my first diesel truck, a 7.3 of course. 2002 f350 4x4 crew cab, short bed. Any ways i drove it for like 2 weeks and left it at my uncles house so he can use to go to work. then 2 days later he calls me to tell me that the truck shut off while driving just like that. he tried turning it on a couple of times and it would just crank. he gave up and had it towed. I have been looking through all power strokes forums and found some solutions like changing the CPS or the IPR.
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So I have this intermittent problem of the truck shutting down on its own when in idle or idling along in drive I immediately put the truck in N, turn the key and she starts right up again.
Does not do it at speeds, just in idle. The "check gage" and "battery" light are the only dash lights on after a shut down.
Where do I start?
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I have a 99 7.3 with 40,000 on a rebuild,injectors I don't know they do pass a buzz test. What happens is when driving say at 30 mph and I am not needing to give it throttle but i don't back all the way off the peddle sort of at a neutral point my engine will sound rough and seems like its not hitting on all cylinders.it runs great when i give it fuel and idles fine its just the point in between it runs erratic.last year when chasing a no power problem. I did rebuild the ipr, new fuel filter, icp and harness,cps and what fixed it was new fuel pressure regulator (brass was gaulded and causing fuel pressure to crash). No mods other than a bullydog tuner that never goes past #2 setting. I do have a auto ingenuity scanner, what to look for or already know what my issue is.
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So I'm on my way out of town, when the truck just doesn't feel right. I proceed to make a u turn and pull off the high way. During the course of the u turn the truck shuts off. I pop the hood and notice the oil is everywhere from the fuel bowl back. Oil is also dripping off the passenger frame rail.
There is also a nice size puddle of oil pooled under the truck. I believe that I blew the high pressure oil line that feeds the injectors. I had to get towed back home. If it is the high pressure hose, how much does the stealership normally charge?
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This has happened 3 or 4 times now while driving down the road. Just cruising down the road the CC will just cut out. I'll hit the "set accel" button on the wheel and all is good again until it randomly decides to do it again.
The only thing I've changed recently is the rear end speed sensor to cure the ABS light. I wouldn't/didn't think this would have any effect on the cruise control, but IDK, maybe I'll put the original one back in and test it.
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I have a 2002 f350 dually with a 7.3 and 197k. At 186k it died while driving and I had it towed home. As soon as the tow truck dropped it the truck fired right up like nothing was wrong. Then it died again 2 days later. I replaced the cps, but the fix was replacing the icp and pigtail. Now it is doing the same thing again. It died on my wife while driving yesterday, i had it towed to the dealership I work at and it started and ran for about 2 hours with no issues. I hooked up the factory IDS and had a diesel tech look at it with me. The oil pressure, injector circuit and injectors, and IPR all look good. The batteries were a little weak so i replaced both of them. I drove it home yesterday, about 10 miles, and drove it around town today. Then i tried to jump start my 96 bronco and after about 10 minutes of running it sort of hick uped then 5 minutes later it died and would not start. I let it set for 30 minutes and it started and died after about a minute.
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I have a 2001 F350 7.3l diesel.
My truck died the other day while driving almost like he ran out of fuel. Well he had fuel so I checked the oil and it was dry. There was an ugly puddle between the intakes and a whole lot on the ground leaking out. Also the puddle looked blueish.
Put in more oil and got him home but I can't find the leak. The only thing I've noticed is that the intercooler on the cold side came off slightly. A year ago I had to go mess with the UCVH and when I put it back together I had lost a dang intercooler duct clamp and replaced it with a sturdy ring clamp. Well it wasn't sturdy enough.
How much would this leak if it came off for a little while and how serious of a problem would I have as a result? I don't have any check engine light and as long as he has oil he runs fine.
Since I have reconnected the intercooler and idle tested the truck I can't reproduce the leak. I don't believe that a huge amount of oil is running through that intercooler because the turbo is lubricated through another system I have read. So what gives?
Also I am getting weird dip stick reading. For a little while when I ran the truck today he was showing WAY over full on the dip and then down again a little bit below the operating range line. Also there are a lot of air bubbles on the dip stick when it comes up. Way more than I am used to seeing.
Also, I really like the idea of cleaning my engine off really good. It's a frigging mess now. What precautions can I take to clean it up good without making a huge mess. Can I just go the car wash that has a degreaser hose and drain and just spray it down like nothing or is it sensitive and finnicky when wet? Cleaning between the intakes seems almost impossible without getting the whole turbo system out of the way. Should I be thinking about that?
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I have a 2002 f350 dually with a 7.3 and 197k. At 186k it died while driving and I had it towed home. As soon as the tow truck dropped it the truck fired right up like nothing was wrong. Then it died again 2 days later. I replaced the cps, but the fix was replacing the icp and pigtail. Now it is doing the same thing again. It died on my wife while driving yesterday, i had it towed to the dealership I work at and it started and ran for about 2 hours with no issues.
I hooked up the factory IDS and had a diesel tech look at it with me. The oil pressure, injector circuit and injectors, and IPR all look good. The batteries were a little weak so i replaced both of them. I drove it home yesterday, about 10 miles, and drove it around town today. Then i tried to jump start my 96 bronco and after about 10 minutes of running it sort of hick uped then 5 minutes later it died and would not start. I let it set for 30 minutes and it started and died after about a minute.
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Well stock trans went two weeks ago so warranty company had another stock one put it (4r100). Finally got the truck today and I noticed my overdrive was flashing. I have no issues though shifts fine speedo works Rpms are normal I checked fuse 19 under the dash that's fine so I'm lost
If I turn the key on I can use the button like normal but once I drive it just flashes. It works but flashes .
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