Ford 7.3L Power Stroke (1999-2003) :: Truck Shuts Off When Going Down Highway
Headed to town with the kids and my truck shuts off going down highway. I pull over and start it back up and make it to 30mph and shuts off again. This time it will not start. I have 1/4 tank of fuel, I first thought it maybe the issue inside the tank causing it to shut off. I get some diesel pour it in and it fires up for about 15 secs and shuts off. I pull the fuel filter, making sure o have fuel in the bowl. Start it up and it runs for about 10 sec. I then swap out the CPS. Same thing, runs about 20 and cuts off. I then call AAA because I am tired and ready to go home. I have it towed to my buddy's shop. He has not looked at it yet.
View 3 RepliesFord 7.3L Power Stroke (1999-2003) :: Truck Has Begun Randomly Having A Delayed Start
As would be expected things deteriorate on a 16-year-old truck. My alarm has, on a few occasions, decided to annoy anyone around by activating for no apparent reason. This has happened in various conditions (in the parking lot, in the driveway, right after I've driven it, or sitting half the night). I chalked it up to aging circuitry.
Now I've picked up something new. Over the last few weeks my truck may or may not arm. It seems to be a flip of the coin. I'll drive to the store and I push the button on my remote and the truck goes "beep"..."beep". 10 minutes later I drive home, park the truck, push the remote, and the truck goes "beep"...and that's it. My alarm light is blinking two quick flashes when this happens.
Since this has started my truck has begun randomly having a delayed start. I'll disarm the truck, turn the key, and nothing happens for about 1 second or so (seems longer) then the truck starts normally.
Both of these issues started pretty close to the same time. I would normally go straight for a starter issue but I don't know if these might be related. I'm the second owner so have absolutely no idea about the Ford anti-theft system, how it's connected, or what the blinking lights mean.
I'm considering disconnecting the anti-theft system to see if that makes a difference but, as stated, how it's connected, what I might disable, or how it works. Was there any documentation published on it?
Ford 7.3L Power Stroke (1999-2003) :: Truck Misses And Randomly Dies Only When It Rains
I am at a loss on what this could be. For the past 8 - 9 months my truck will randomly miss and if I am going slow enough it will cause the engine to quit but only when it is raining. I sometimes get a service light when it happens but as soon as i turn the key off and back on it goes away. My truck runs perfect otherwise and even when it rains except when it randomly does what I just explained.
This started when I replaced my passenger side valve cover gasket and I also took out my "brain box" (don't remember what it's called) and put it back in (didn't replace it). I did have the up-pipe replaced as well around the same time and put in EGT, boost and trans temp gauges. That's about the only things engine compartment wise that's been done.
I did just take it to a shop to put on a scanner and after his testing it did spit out 1 code. It was the cam position sensor. Can this sensor cause what I have explained? Like I said, this only happens when it rains. Doesn't matter if it's poring or barely sprinkling.
Ford F-150 - 1997-2003 :: 1999 Truck Randomly Stutters When Driving On The Highway
I just bought a 99 f150 it has 257000 miles on the truck, and a motor and transfer case from an '01 with 215000 miles. I'm not sure about the maintenance on the truck but when I'm on the highway the truck randomly stutters. I was thinking it was coming from the tranny because the tranny was overfilled by almost a quart but really not sure.
View 7 RepliesFord 7.3L Power Stroke (1999-2003) :: Lost Fuel Pressure Going Down The Highway And Truck Died
Last night when i left work I noticed my fuel pressure was running about 77 psi, it normally runs about 68psi. today I took my daughter to practice and it was around 83psi, on the way home it was up to 95psi, so I parked it and took another truck to work.
About a week and a half ago I lost fuel pressure going down the highway and the truck died, finally decided my pick-up foot must have come off and had my sister in law bring me some diesel and it has drove fine ever since. (it was right at a quarter tank).
I have the FRX from riffraff and am thinking some pieces of that foot have got into the fuel bowl and plugging up the return. Things to check? Could it be a problem with the fuel gauge or wiring, and how to test them. It is an autometer gauge from riffraff.
It will probably be a few weeks before I can do much more than clean out the fuel bowl. I don't have anywhere inside to work on it and it's been rain/sleet/freezing rain/snow for the last 10 days. I have most of the stuff to do the hutch mod and its next on the list but was hoping to put it off till spring.
Ford Super Duty (1999-2016) :: Codes P0172 And P0174 / Truck Bucks And Coughs / Zero Power When Driving
I have a 2008 Canadian F250 SD 5.4 triton. Its got 224000km on it and began to get the dreaded 5.4 dieseling when hot and idling. I replaced the timing chains, guides, both tensioners and crank gear. I confirmed the cam timing was correct with the crank key at 6:00 and the chains marks on the R and L. I replaced 2 coils on cyl's 2 and 3. I replaced the MAF sensor, fuel rail pressure sensor, cleaned and confirmed working the crank sensor and both cam sensors. I fixed the broken Bank 2 cam sensor wires. I changed the plugs and replaced all 4 O2 sensors.
Now the truck idles great but when driving it bucks and coughs and has zero power. I cant even get to 80km/hr. The computer now shows codes P0172 and P0174 which means the Bank 1 is rich and the bank 2 is lean. The O2 sensors are working and moving around. The back 02 sensors are both reading in the 0.8Volt range but bouncing around. The front 02 sensors are both moving from 0.1 to 0.8 constantly. The long term fuel trims are +9.5% bank 2 and -4.7% bank 1 at idle. When the throttle is off idle they become +25% bank 2 and -25% bank 1 . How is this possible and what can I do to fix this engine?.
Ford 7.3L Power Stroke (1999-2003) :: F250 - Truck Would Die While Driving The Truck
I have a little problem with my 1999 f250 7.3 power stroke diesel. Every once in awhile, while driving the truck would die completely but i switch it into neutral and started right up. What could be the problem?
View 9 RepliesFord 7.3L Power Stroke (1999-2003) :: Stalling Out And Dropping Power Randomly
So the truck has been stalling out and dropping power randomly, symptoms pointed to needing the 50 cent mod, changed the cps for cheap insurance and peace of mind just in case it wasn't the uvch, no dice. So last night I yanked valve covers for the first time here's what I did while I was under there, check my work.
1st I ohmed out injectors thru the 42pin harness according to tuglys sig link. My meter would only go down to a 0.4 when testing the test leads just to each other
DS injector ohms
#2 3.5
#4 3.4
#6 3.6
#8 3.6
PS injector ohms
#1 3.6
#3 3.6
#5 3.5
#7 3.6
DS glow plug ohms
#2 prong to ground 2" away 0.9 ; white connecting wire back to gp relay 0.3
#4 0.9 wire to relay 0.5
#6 infinity ohms up thru highest meter setting, checked multiple times and different ground spots,(replacing tonight) wire to relay 0.5
#8 0.5 wire to relay 0.5
PS glow plug ohms
#1 1.0 ; white wire back to relay 0.6
#3 infinity multiple tests as well (replacing tonight) wire to relay 0.5
#5 0.9 wire to relay 0.6
#7 1.0 wire to relay 0.7
Next up, ebp sensor was reading 1.9 higher than map/baro koeo, gently cleaning sensor earlier didn't work. Installed new motorcraft, will check it with Torque pro koeo once the batteries are reconnected
Next I checked the uvch connections which felt good, darn it, maybe a smidge of movement from the DS, but nothing halfway disconnected or anything. Hmm. I ground down the quarters to the top of his head and installed.
Next I torqued down the 4 bolts per cylinder of the rocker arms at 20 ft/lbs, all were perfect and snug
Next up, injector torque. I've read on here below 50, or 80 in/lbs depending on different threads and opinions that I would need to replace o-rings.
So I set the in/lb click torque wrench at 50 in/# and tested the wrench's click on the higher torqued rocker bolts, then checked all the injectors, all were good
Reset for 80in/lbs, tested, then hit all injectors, #6 almost budged but clicked immediately before the handle moved
Reset for 100 in/lb, tested on larger bolt, 2 injectors took a 1/8 turn;
Reset for official spec of 120 in/lb , tested wrench, all injectors took 1/3 to 1 full turn
Reset for 130 in/lb (above official spec, but highly recommended on here by those way more knowledgeable than me on our engines) tested on a larger bolt, slowly and carefully gave all injectors almost an extra 1/2 turn to click; whew, finally a relaxed sphincter.
At this point I knew I needed to buy 2 glow plugs today, replace, then I'll check all glow plug torque at 14 ft/lb in one go, so I got everything ready for a hot torque after I do glow plugs tonight ("unloaded" the torque wrenches) and finally installed the RiffRaff AIH delete plug. My cell phone's alarm went off to get the kids ready for school, so hit the snooze and got everything put up. Now for a nap, then buy 2 Motorcraft GP and check back on here before going back at it tonight.
I also checked the turbo for play in all directions, was nicely solid and spun smooth, no wheel damage. Up pipes and well basically everything exhaust under hood had zero signs of soot/leaks with inspection mirror.
Ford 7.3L Power Stroke (1999-2003) :: Stalls Randomly And Sometimes Will Not Start
2001 Excursion 7.3 - stalls randomly, sometimes will not start. After the IPR was replaced it was rough for about 4 miles (I thought maybe air in the system), next 40 miles was flawless with 3 stops and restarts. Then it sat for a few hours and I went to leave again and the problem was off and on again for another 5 mile drive. Now it won't start in the driveway. It will start if I disconnect the ICP but the idle is still a little rough.
I replaced the normal culprits after a lot of searching on here:
CPS - replaced with autozone part, thought maybe it was bad new so went to ford and replaced with official part from the dealer
ICP - had oil in the plug and it would idle better removed so I replaced the plug and as much wire as I could - soldered, heat shrunk, good connections - both the pigtail and sensor came from Ford dealer
IPR - replaced with part from the Ford Dealer (FYI - 1 1/8" 1/2" drive craftsman deep socket from sears fit in the ratchet and on the part).
Grounds - found somewhere that the ground on the firewall for the windshield wipers can interfere with the CPS so I pulled it, clean the connections and made sure it was tight and secure.
No check engine light now - I received a few through the process, but did not clear them and there are no codes at this time (self cleared on the 40 mile drive)
I'm thinking it may be some electrical issue/short or a fuel issue at this point, bowl is full and the filter is fairly new (few thousand miles). I haven't done the Hutch mod, but have over 1/2 a tank.
I'm trying to get this going as quick as I can so I don't want to waste too much time, but I also don't want to miss a critical troubleshooting step to take.
Below are my thoughts on the next steps.
Research and test fuel pressure
Tow it somewhere to test each injector - I only have Torque pro to read codes and engine status
If fuel delivery checks out ok, start testing wire by wire on all of the above parts.
Ford 7.3L Power Stroke (1999-2003) :: Cough Randomly On The Interstate?
My 7.3 will cough randomly on the interstate not towing or anything. It has a new turbo and filters...
View 6 RepliesFord 7.3L Power Stroke (1999-2003) :: Power Lost And Engine Turned Off While Pulling Onto Highway
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?
View 11 RepliesFord 7.3L Power Stroke (1999-2003) :: 2002 - Randomly Dies Will Not Restart
Ok, so my 2002 f250 died on me last Tuesday out of the blue, pulled it home and found fuse 23 I think ECU power was blown. I removed my Hydra, and put a new fuse in it and all seemed well, then Friday evening on my way to dinner was driving along and truck shuts off like someone turned the key off. I replace the Crank sensor, even though I had put a new one in after the first time it died, which was last Tuesday, still would not start.
Pulled it home, went out Saturday morning to look at it and hit the key and it fired right off. At this point I don't really know where to look, I wiggled every wire I could find while it was running Saturday and no change, but it does seem to have a miss in it while it is idling...... I am not sure where to start looking....
Ford 7.3L Power Stroke (1999-2003) :: Charging System Light Goes On And Off Randomly
My charging system light in my 2000 F250 keeps coming on and off and very random times. Its been happening for quite sometime now and I finally joined FTE so I figured I would ask everyone what could be causing this. Ive disconnected all the electrical plugs from the alternator and made sure they were in there well.
It all started when I was cleaning my engine not too long after getting the alternator replaced. I don't remember getting any water anywhere near the alternator and cant understand anything causing this other than the connectors. It will cut on and then cut right off sometimes and then sometimes it comes on and stays on...
Ford 7.3L Power Stroke (1999-2003) :: Engine Quits Running Randomly?
My engine suddenly stops while driving. There is no warning or loss of power, it just stops randomly after running fine for a while. After some time (might be minutes or hours) the engine turns on and runs fine.
I have no clue what it might be, I believe it might be an electrical problem affecting the diesel pump. The pump has a pair of cables coming in to a white plug at the pump's back, I disconnected them but the engine still runs.
Ford 7.3L Power Stroke (1999-2003) :: 2000 - Smoke White Randomly?
my 2000 f350 7.3 is acting strange lately. Its got 252k and is all stock other than exhaust,intake,ww2. It smokes white every random once in a while for some reason. At start up it wont though. If i get on it every once in a while it will smoke white then go to back to black. Im not consuming coolant, and the oil looks fine, no residue on the oil cap and its not puffing out the oil cap either. Other than that its running great just dont know why it goes white every so often.
View 14 RepliesFord 7.3L Power Stroke (1999-2003) :: Engine Randomly Cuts Out At Idle
The engine in my truck sometimes cuts out seems to be at idle. Takes a lot of cranking together going. Might be related but the electric fuel pump seems to run every time I turn the key on and if i sit with key off and the engine not going. I hear the pump come on again. No external leaks can be seen.
View 3 RepliesFord 7.3L Power Stroke (1999-2003) :: F350 - Battery Light Flickers Randomly
I have a 99 f350 7.3l 4x4 and my battery light flickers randomly. I have checked the alternator and both battery's. All brand new and seems to be ok. They only are getting a charge when the battery light is flickering. I put both new batteries in on Thursday and on Sunday I needed a jump at the store.
View 7 RepliesFord 7.3L Power Stroke (1999-2003) :: 2002 - 4x4 Won't Working - Engages Randomly While Running?
I have a mostly stock '02 F-250.
The other day I parked the truck and as I was walking away I could hear what sounded like the 4x4 clicking on and off. I wasn't sure. I figured I would continue to run the truck to get more symptoms and come up with a diagnosis.
Later, backing out of the driveway, I heard what sounded like a buzzing/grinding noise, like something was trying to engage. It quickly went away.
The next day, the 4x4 light came on as I merged onto the interstate. I pulled over, tried switching the ESOF switch to get it to turn off. I never heard 4x4 engage or "felt" it. Re-starting the truck got the light to turn off. It hasn't been on since.
Today the truck made more buzzing/grinding noises. When I tried turning on 4 high with the ESOF switch I got no response. It went into 4 low and the light came on.
I re-started the truck. Tried putting it into 4 high again and the light came on. When I put it into 4 low the light quit and wouldn't come back on.
I run with my hubs unlocked and they were unlocked at the time, FYI. Also, I have air coming out of the vents, so no vacuum issues. I actually disconnected the 4x4 vacuum lines because I don't use the automatic locking future anyways.
I did do some work with my truck and boat during the flood in Louisiana and I took her through really sketchy stuff. My guess is that the ESOF motor is shot, most likely from being submerged.
Ford 7.3L Power Stroke (1999-2003) :: 2001 Excursion Will Crank But Only Start Randomly
I have a 2001 Excursion 7.3 Diesel that is having a starting issue. Have replaced the batteries, has new glow plugs, common failing cam position sensor replaced once already. It runs great when it starts, no codes. It will crank, but not turn over at random times. Will do this for 3 or 4 tries...charge the batteries, go back later to start and it will on the second try. Turn it off, try again..and back to cranking, but not starting. Not fun having to worry about being stranded somewhere. Absolutely desperate at this point.
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