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
View 5 RepliesI 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?
View 14 RepliesI 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?
View 3 Replies2000 truck, 334k, automatic 2wd, stock. Have low power, 11psi max.
Permanent p0472 code, can't clear it even temporarily. The moment I turn the key to Acc, code is there. It's the only code showing on Forscan.
Tried 470ohm 1/2watt resistor, in two turbo pedestal sensor connector wires, no change. Forscan shows 0.0-0.6 psi EBP value when running.
No change with pedestal sensor plugged or unplugged. Resistor or not. Truck starts and runs good, low power is the only issue.
Sensor and tube are new. Seems like wiring is bad, where to look next to track this down?
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...
I have this sensor unplugged. Is there a way to defeat this sensor so I don't pull this code?
View 3 RepliesI have a 2002 F250 Super Duty. Was driving it and it started to lose power and shut off. Then wouldn't start like out of fuel. No engine light no codes. Truck has 155k on it. So just because I replaced fuel pump. Truck runs but not right it's ruff no power kinda back fires in exhaust. I check wires and plugs under valve covers all seems ok. I ran truck and pulled each injector loose and engine would stumble. As in they are working. I replaced cps. Just because still the same. Then the truck started running right. But the truck runs but has knock but knock goes away and truck has full power. Yes oil is full and I change it regularly. The problem is off and on like electrical.
View 7 RepliesSo my truck decided to throw out the EBP sensor code. I am noticing a bit of power loss and funny noise when I let off the gas. I am 200 miles from home and not near a town or parts store at the house I am working on. Is it safe to drive the tuck the 200 miles back home tomorrow. I have a very important appointment I can't miss. I will be putting the new sensor and harness on tomorrow Evening
View 3 RepliesStarted my truck yesterday and drove about 1/4 of mile and all of a sudden I lost all power but was lucky enough to creep back home. Had a friend put it on a scanner and it spit out P1280 and P1316 codes. My truck will start and idle rough but has no throttle response and no power. I changed out the CPS and ICP and the problem still exists. I got an infrared thermometer and checked the heat coming off each manifold and the driver side was reading about 200 while the passenger side was reading about 75 while at idle. Pulled valve pan cover off the passenger side to check and see if the harness came loose and everything looked fine. So my question is do you think this could lead to a bad IDM?
View 9 RepliesWhat I know the truck was running normal except if I stomped the gas pedal and let off it would not respond again until I shut off keys and restarted this was a month ago now the truck sounds like it has a lope tune.
When I hit the gas pedal it blows white smoke and if I press the gas while idling or driving it floods out I did the spray bottle test on manifolds the drivers side was plenty hot the passenger side is cold you literally can touch while it's running.
The truck sounds like it's only running on 4 cylinders it has gotten so bad I parked the truck. Also this truck always had poor mpg 8 to be exact city hwy and towing nothing changed the mpg at all it used to blow out wet soot that would fall down on the truck and anyone standing near it.
Mods unknown pcu program 4in straight pipe with 12in stack harpoon mod in tank
Is this the sign of a bad fan clutch? I can spin it by hand,and it goes round and round.Can I drive it like this until I replace it? I am only driving 30 miles round trip at night, not towing and outside temperature is usually about 100 degrees.
View 6 RepliesSO after reading about the air gap on AC compressor, i checked mine and it was large so I removed the shim and the gap was almost like new..
Now when I first switch on AC the compressor will click on and off several times especially at any RPM above 1000.
I hooked up hoses and tried it again with wife holding RPM in 1200. The high side would bounce from 100 to 400, compressor would cycle off and then back on in quick secession with high side bouncing back and forth for 10 seconds or if she let off pedal back to idle RPM.. low side was not moving a lot at this point but not bouncing like the high side. What can be causing the pressure issue? when it stabilizes the pressures are right on for OD temp according to charging chart for R-134a.
F350 2001.
Constantly throwing codes for both front wheel's ABS. Ohm'd out both sensors - same reading
Ohm'd out wires leading to sensors - same reading
Ohm'd out rear diff speed sensor against a new one - same reading.
Pulled front sensor's cleaned and put my fingers in the sensor hole. What should I be able to feel? I'm wondering if the previous owner put non ABS hubs on?
Just got myself a gently used Econoline E-350 7.3 Diesel and was loving it when she ran:
E-350 7.3 Diesel
Recently I have been having some charging issues. It started with it intermittently having a hard time to start, especially when it was warm. I carried a jump box with me and that always seemed to work. Then I noticed the voltmeter on the dash dropping. It went down to the 8 and I was like something is wrong.
Checked the battery voltage, it was at 9.6v. OK, maybe alternator isn't charging. Advance Auto tested the alternator, said it was bad. I replaced alternator. No difference. I pulled the battery and ran it on a conditioner to bring it up to proper voltage. It's now at 12.6v resting. Starts the van no problem. When running though the voltage doesn't increase to 13-14 volts like it should though telling me the alternator isn't doing it's job. Increasing engine RPM actually decreases voltage? Checked all the obvious things like bad grounds but everything seemed clean.
The only thing that was fishy was when I pulled the three way plug from the alternator, one of the pins had corrosion on it. I cleaned it up before installing the new alternator. I didn't do a diode test on the new alternator because I figured it was new, but hey maybe I got a lemon?
Anyway I'm going crazy trying to figure out where the problem is. All fuses are ok. Is there an external regulator or something I should be on the lookout for? Is there anything else that could be causing a non charging issue? The battery was manufactured in 2014 so it's relatively new.
And on a random note my ABS light is now on?
First off, I have a 2000 Excursion with a 7.3L so I have a GPCM and not a glow plug relay.
I'm getting a P0683 code. My SES light is on all the time. I have a voltmeter plugged into the dash outlet and based on prior behavior, it is definitely not lighting the glow plugs now. The voltage isn't dropping enough. It only goes down to 12.35v or so when the engine is cold. This time of year, it gets to around 70 during the day and 45 or so at night so the plugs aren't strictly needed. It starts without any problem at all.
I'm not sure what could be wrong. The connections are all tight to the GPCM. I've wiggled and pushed them in as far as they go. I recently did a lot of work to the engine, including new injectors, glow plugs, 38R, etc. and I've never had this code before doing any of that work.
I've read a bunch of threads on it... is there any way to troubleshoot this, or do I just get a new GPCM? Can I convert to a GPR? I don't plan on having to pass CA smog as I'm probably moving at the end of the year.
Truck wont start idm communication error all the fuses are good and the relay seams good I switched it out with another relay 340,000 miles how do I know if its the IDM r not... I'm sure the idm is not cheap...
View 2 RepliesImmediately after replacing both front hub/rotors (and front pads and wheel bearings), my ABS light came on and will not go away. I finally ran codes a couple weeks ago while troubleshooting my CPS problem which left me stranded on the interstate while trying to get to the airport for a business trip.
Back in December, all I did was remove, clean, and reinstall the sensors like I always do whenever I have to R&R the rotors. I can't find any damage to the wires or connection points. I have re-removed and reinstalled each sensor again. I have cleared the codes, but once I start pulling out of the driveway, the codes come right back again for both front wheels.
There were absolutely no symptoms prior to the rotor replacement job, and this has been an ongoing and increasingly irritating visual issue ever since I did the brake job back in early December (I can't NOT look at the ABS light every time I start the truck, and I HATE seeing it stay lit)!
What bugs me the most is that I'm getting codes for BOTH sensors after replacing BOTH rotors. I MUST have gotten something wonky, but can't figure out what it was. Now I did replace all the drive line u-joints at the same time, but I never touched anything on the pumpkin or tranny in the process.
So, I have two questions..
1) Possible causes?
2) Possible solutions (I don't want to just start throwing new parts indiscriminately)?
From what I've read, Roland posted acceptable ohm values for the front sensors a couple years ago, so I can check that tonight.
My truck is hard to start when cold and I suspect glow plugs. But it is not showing any codes? If it is a glow plug or glow plug relay at fault , should it throw a code?
View 10 RepliesI purchased this unit, non running, was told the HPOP was bad, after going through the unit top to bottom, Im stumped, below is a list of items serviced and or replaced with OEM parts.
0. changed oil and oil filter
1. Terminator 500 Hpop
2. New ICP
3. New HPOP lines.
4. New starter and solenoid
5. Serviced Turbo (rebuilt with new parts and WW wheel)
6. Serviced Injectors (shimmed) all test good.
7. new pass and driver harness, UVHC replaced, glow plugs replaced.
8. new heavy duty GPR
9. Tested IDM no issues.
10. Hutch mod on tank (re-circulator was stopped up) deleted it, added inline filter.
11. serviced fuel bowl with new parts, upgraded parts on fuel bowl new blow off valve, new drain valve, tested heater all good no blown fuses.
12 replaced faulty fuel pump
Might be leaving something out of this list, the truck has run but only for very short periods of time, (hence the dropping of the fuel tank)
fuel pressure at 70 psi, some white smoke, connected to on board computer, checked every conceivable possibility No DTC codes, my gut tells me it has to be fuel related but at this point I just have run out of things to check.
I have tested everything with a fluke multimeter, including the IDM and all the circuits to the 42 as well as all the way to the injectors and glow plugs and find nothing wrong all tests yield valid readings,
There may be other information available but my after market scanner does not show any issue, KOEO buzz test results good.
The three times I have had this unit running it was dumping lots of white smoke, however after the last round of dropping the fuel tank and replacing the fuel pump the white smoke has dropped to a minimum, but cannot get the truck to run, cranks, wants to start, almost starts, got it up to 800 RPM last try but just will not go beyond that point.
I cannot find anything wrong, must be something I am either missing or its something my cheap scanner can't pick up on.
I have a 1999 f250 7.3 psd. it cranks and will not start, it use to crank for a bit of time and then start and now it refuses to start. If I leave the key in start position for like 30 seconds it use start and now it wont. I am thinking it is something with the glow plugs?
View 8 RepliesI have a 2002 F350 7.3 with 76,000 miles (still a baby) ... about a week or 2 ago i got in my truck and went to start it like normal, except instead of whipping over and firing right up in the snap of a finger, it kinda had a slower cranking time and took a second or 2 longer than normal. My first thought was maybe the battery's, BUT there basically brand new !!! not even a year old !!! ... so i figured maybe a starter, but i just left it as is, it still ran normal after firing.... Until this morning, I went to go start it and it cranked over 3 or 4 times real slow and would crank any more, it did this to me multiple times. Its acting like dead batteries so i put a jump pack on it, no change. I am thinking maybe a starter ....
View 8 Replies