Ford 7.3L Power Stroke (1999-2003) :: Pop When Accelerating With Turbo Spooling Up And Lost Power - Code P0475
Sep 12, 2015
As I was getting ready to leave town with the tractor loaded up, I was accelerating with the turbo spooling up when I heard a bit of a pop and lost power (engine still running and all, just very low power like you get when the turbo fails). I wasn't far from the shop so I came back and started getting a lot of white smoke out of the exhaust, it doesn't smell like diesel, probably more like oil. Definitely smoke, not coolant. I pulled it around back and shut it down to go grab AE and scan it and it shows a P0475, starting it back up has light smoke at idle and it idles fine but as soon as you give it any throttle it starts smoking pretty badly.
Researching it looks like the most likely cause for this is the EBPV itself but before tearing it down that far. This is the only code it's showing.
Truck has 272k on it, turbo was rebuilt a couple of years ago but we didn't do anything with the pedestal at that time. I guess in retrospect, I probably should have done the EBPV delete and the resistor fix then but I didn't think about it at the time.
On another note, my AE is not showing any of the system test for some reason, the drop down is blank. I have version 7.0.1, so it's an old version but I'm working on an old truck, so... What that might be? I've got the truck pulled into the shop now to let it cool down. I'll probably let it sit overnight and take the turbo and EBPV out tomorrow unless someone has a better suggestion...
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I went and got my truck smog and it failed because of this code. I then changed the sensor cleaned out the tube and I still can't figure out how to get rid of the error code?
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I have this sensor unplugged. Is there a way to defeat this sensor so I don't pull this code?
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I have a 2005 F250 with 186K miles. I do minor work on my vehicles but have little experience working on my diesel. I was accelerating when I heard a pop and a hiss similar to disconnecting an air hose from an air compressor. Total loss of turbo power. No turbo reading on the turbo gauge on dash. No loss of oil. No smoke. Oil and coolant look fine. Took off turbo and everything appeared to operate like it should (according to YouTube videos). Inspected lines and rubber boots.
Rubber has some cracks but not certain if they are holes. How small/large of a hole would cause total loss? Was originally scared to take it to a shop knowing they could name their price. Not opposed to taking it somewhere now knowing the turbo works but obviously would rather save the money. Any tips on troubleshooting? I'm not opposed to proactively replacing parts/sensors as the truck has given me 186k and I plan to keep it as long as possible.
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Ok so I just replaced the oil cooler, added 2 coolant filters, changed the oil/filter, and both fuel filters, and installed the updated turbo drain tube. I get it all back together, it takes a minute before it will fire but I figured that was normal for not having any oil in the sump under the cooler and changing both fuel filters. Everything seems fine, checking for leaks and I notice that I don't hear the whistle of the turbo so I go look at my edge CT and have zero boost and it stays at zero even if I rev it a bit. Obviously I didn't redline it or run it for very long maybe a total of 10 minutes over several times.
I will note that I did find a plug for the driver side injectors wasn't plugged in the first time I started it, but I shut it down pretty quick and plugged it in. So then after I noticed the turbo not spooling I used the chip to pull the codes and had a whole bunch related to the unplugged harness and one for turbo underboost. Figured it was because the harness was unplugged so I just cleared the codes and tried again, now I'm not getting any codes but I'm also not getting any turbo boost the only code that it is throwing is the P1000 "on-board diagnostic systems readiness test not complete" do I need to go drive it for the learning sequence because I had the batteries disconnected for a couple days?
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Having an issue with my 05 f350. Seems when I chomp on the the throttle I get tons of boost 30 lbs plus with no power. Seems most prevalent when starting on a hill , or hard on the throttle off the line . Also getting turbo "bark " when backing off throttle. It's less prevalent when feathering the throttle and usually more noticeable 1/2 throttle or more. I'm thinking could be the Vgt actuator or clogged/ dirty ebp sensor?
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2005 f350 6.0 all stock except egr delete. My turbo is spooling up and down constantly. I can actually watch my VGT duty cycle fluctuate while sitting at an idle too. I've cleared the codes and p0299 always shows up first, but then I'll get p0069 BARO/MAP, and a p0470 exhaust pressure sensor eventually. Sometimes it takes an hour of driving before those show up. I can watch all these values on my torque pro, and nothing seems out of the ordinary other than the turbo opening and closing at will. What can cause this? I hate to just start throwing sensors at it.
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As title says, the EBP stays at 43psi key on running or not. MAP is at 13.7psi like it should be. tried a new sensor and also unplugged and no diff. Wiggled engine wiring harness and it never dropped. No tuner. Codes are P0472 and P0475. Truck runs very sluggish. 4.7v on EBP plug
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My "01 6 speed has started stalling after spooling down. Example, coming down a grade in a lower gear and then push the clutch in it will die. Where do I need to look? I've recently done injector o rings and normal service. No change at all. No other issues except a very touchy throttle. It's pretty disturbing to be pulling a heavy load, have to get in the brakes hard, push the clutch in and the engine dies. Not a good day.
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I have an 03 super duty with the 6.0, came back from vacation with my 5th wheel in tow. Lost the upper turbo hose twice on way home. Managed to get it rigged and made it home and parked it. a week later went to uncouple and move the truck and had some very strange issues. Started fine but could barely make it up driveway (no trailer at this point). No power, felt like when turbo hose came off. Got it moved and checked turbo hose and all was good?? Went out a couple days later and no start.
Checked all relative fuses and relays and all checked good. Jumped starter solenoid and starter worked fine. turned key on and jumped quick connect on right side of engine compartment to battery and it fired right up and ran. Jiggled shifter around in park and neutral and nothing. BTW I always here the relay clicking and swapped with one of the others just to be sure, same thing. After looking on the internet for a day and a half thought maybe a NSS in the tranny but I think I have the 5R110 that does not apply??
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I got a p0284 code and have some symptoms such as shaking while accelerating between 45 and 60 mph and a rough idle.
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Well I am at a loss now. Rebuilt the turbo with a new wheel and kit from Riffraff. I still have no power, no boost and no codes. The new wheel whistles. I can hear it. It sounds way better than the old one. But still no power. I really don't know what to do now.
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So on my way home today I lost all power, the engine shut of and i coasted to side of the road. Went to try and start, nothing. When key is in the crank position the gauges were jumping all over the place, also accompanied by a lot of clicking from behind the dash. Nothing happened when tried to crank. No power to windows or even emergency flashers.
So i get it towed home, and of course it turns over. But this only lasts about ten seconds, then dies. I could do that a few times and then back to no power at all. Even at times with the keys out of ignition it will still click and make a lot of noise.
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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 99 E350 with 7.3 power stroke quickly lost power while on the highway today, bogged down and died. I couldn't get it restarted so had to have it towed home. I tried getting it started at home but it just pumps out white smoke out the exhaust. I got it to fire and run for a minute on a mixture of starting fluid and wd40 but wont stay running. Some background info, I checked oil and it was low but still registered at very tip of dipstick so I topped off oil level and still no start unless I give it a mixture of starting fluid and wd40. Batteries are good and cranking fast. Truck has 355,000 miles but very little blow by and prior to this had plenty of power and didn't have to use the block heater to start it thru the winter even when the temps dropped down to 12 degrees in January.
One thing I did have an issue with this past year was an intermittent cutting out while driving where the engine would instantly shut off but as soon as I tapped accelerator pedal it would start running again like nothing happened, wouldn't even last two seconds and it was running again just like shutting off the key and turning it back on and when it would do that the "Wait to start" light would come on and gauges would drop like key was off but again it all went back normal as soon as I hit a bump or tapped the accelerator pedal and it never lasted more than a second or two and never had to pull over, just tap the pedal or hit a bump and engine would kick in and run fine so not sure if that's related to whats going on now or not.
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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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Last year I did some major work on my 02. Painted it, new injectors, 38R, and once it was back together, the transmission went south in a month. Got a Ford reman HD4R100. Shortly after the install, when in reverse, the torque convertor would lock up when you stepped on the throttle. As soon as you let off the throttle, it would disengage. Thinking it was a tranny issue, got another one from Ford. This one has been in the truck for about 9 months. And it seemed fine until about a month ago. It started doing the torque convertor lockup thing in reverse like the last one, but not as often.
Then last weekend it did it every time I put it in reverse. Then yesterday, while pulling away from a traffic light, there was a loud bang, and lost power in the transmission. Once stopped, I found out it has manual 1st and 2nd, but nothing else. No drive, overdrive, or reverse. I personally believe something electrical led to these issues, and ultimately, the transmission failure. I know the truck is not stock, but I do not run it hard very much. When it went bang yesterday, I was not being hard on it. Where to look at what is causing this?
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While pulling onto the highway and pulling pretty hard lost engine power all boost then engine truned off. Top of engine is covered in oil..... What happened?
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Comming back from hunting today my truck suddenly lost power and stepping on the accelearator had no effect at all. We were on the highway thru the mountains but on a fairly level stretch for a few miles. Managed to pull the truck and toy hauler over and the engine was running fine but stepping on the accelerator had no effect. The check engine light came on every time I stepped on the throttle and went out when I released it. It started fine but no throttle response. Switched around a bunch of relays and checked the fuses and still nothing.
Not liking my parking spot i tried to see if it would move down the road at an idle but it would not. Then I thought to try it in 4 wheel low and as the shoulders were soft it wouldn't move forward so tried reverse and went back a foot, forward again and moved a foot and a half. did this several times and all of a sudden the throttle responded, took it out of 4 wheel and it ran fine all the way home. What would have caused this? I was ready to call a tow truck which would have been several hundred dollar bills for where we were and with the trailer
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I want test my fuel pressure. What is a good gauge or kit to buy? My truck has lost power towing and is now starting to miss a little. I'm wandering if i my problem is in the tank. Is there a good scan tool that would diagnose things too?
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So after hitting a pothole, it would seem like half the engine lost power, after some searching around, i found that i would most likely be the harness inside the valve cover that has lost connection.
Its the right side, so i would need to take of the turbo pipe, and probably something else to get to it.
Since i'm doing this job, what to check out along the way? I want my 7.3 to be as reliable as possible.
I will probably ask some questions along the way, it can be a challenge sometimes to own a car that not many mechanics are familiar with, but as i have read online, this should be a very straight forward fix.
Can the harness be upgraded so it doesn't happen again? Its an 02
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