Ford 7.3L Power Stroke (1999-2003) :: F350 Won't Start Unless Press The Gas / Idles Rough
Dec 2, 2010
So this is reason #345 why I should never have let my wife drive my F-350. I am in the Army, and I got a frantic call from my wife (I missed the first 7) saying that the truck died and won't start. I drive all the way to the truck, pop the hood and discover:
1) there is no coolant; and
2) there is no oil (actually just EXTREMELY low on both).
So, I do what any good Soldier does, I push the truck all the way back home (downhill mostly), buy 5 quarts of oil and a jug of 50/50 coolant, fill up both and try to start the engine.
The last time it ran out of oil (small leak on a seal that I didn't know about) in 2006, all I had to do was fill the oil, turn the key, and press the gas until it kicked over (don't judge me, I was a dumb LT). I did this again this time (now, I am a dumb CPT) but now it: 1) idles very rough; and 2) won't start unless I press down on the gas when I turn the key. There is no gauge light when it does this. I read the thread on the UVCH, but I am concerned I might have done something horrible to my truck.
2003 Ford F-350 7.3L
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2000 F350. Starts great. Idles fine. After it warms up a little, it will run rough and lose power like it is only hitting on a few cylinders. It will eventually stall unless I push the clutch in and bring it back to idle and then it smooths back out. I figured it was starving for fuel but I can rev it with the clutch in with no issue. I ran it up to 2500 rpm and held it there with the clutch in and ran perfect.
I let the clutch out and start rolling....missing again. The check engine light does come on but my scanner says that there are no codes stored. If I idle it, it will smooth out, and the light goes off. All I have done so far was change the fuel filter which was almost plugged shut and the housing was full of rust looking debris which I cleaned out. BINGO! Nope. Same issue.
I am really at a loss as to where to start. I bought this with 120k on it and it now has 170k and I have not had to do anything other than routine maintenance.
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2003 7.3 excursion.. The truck starts every time revs up and idles about 3 seconds then the rpms drop and it tries to stall out catches itself then revs backup and idles rough similar to if you have got air in the fuel lines from changing the fuel filter.. About 1 in five times the truck will stall out and it starts and immediately and idles rough but the rpms and everything runs at speed and rpms don't drop again! This is a reman engine/transmission recently installed.. The mechanic who installed it was unable to figure the problem out.
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2001 f250 7.3L, 289,000 miles, changed the IPR and ICP, noticed the EBP tube was in two pieces. Would this cause the rough idle and shaking? IT started running rough and would die after a mile or two. Would have to wait 30 minutes before it would start again. That is when a buddy told me to change the IPR and ICP the ICP plug was covered in oil as well as the top of the ICP. So I changed the wiring plug as well. I originally cleaned and changed O-rings on IPR but then it wouldn't start, bought a new IPR and started but runs rough. I just started it with EBP tube removed and sensor unplugged. Idling rough when I press accelerator and RPM go above 2K it levels off pouring black smoke everywhere.
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I have a 2002 F350 4wd with the 7.3. I was driving the truck and all of a sudden it was running like crap. the engine light was on. after a minute or so the engine light goes off and the truck is running fine. then again starts running like crap. I am close to the house so I limp it home. runs like crap.... will barley climb small hills. engine light is on. get home turn it off... next day... starts up and runs great for 10 - 15 min. engine light comes back on... runs like crap.... my neighbor says "It's the crank position sensor" I replace it.... runs great for a month.... now it's doing the same thing......
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I have a 2000 F350 4x4 CC 7.3L 323,000 miles auto trans. I have removed my tuner just to make sure that it was not the issue. The truck will run fine then all of a sudden the idle will rise then fall or shudder or go up and down and sometimes it will just Die but it always restarts. No trouble lights at all. I am not sure what is causing the issue?
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I have an early 99 F-350 with 268K miles. It is bone stock right down to the factory exhaust. A couple months ago I started have a rough idle and surging while driving problem. I never got a check engine light but I borrowed a scan tool from a friend and pulled the following codes: P1690 (wastegate solenoid), P0381 (glow plug circuit malfunction), P0269 Cylinder 3 Contribution/Balance Fault, and P0284 Cylinder 8 Contribution/Balance Fault.
I did some research and everything I read said it was most likely the CPS. So I changed the CPS. The truck ran fine for for a few days but then it started acting up again occasionally. I noticed that most of the time when it acted up was at start up when the engine was cold and I also figured out that if I shut the truck off and re-started it (sometimes I had to do it 2 or 3 times) it would clear up and run normal.
A buddy of mine that has a 2000 F-250 said he had a similar problem with his truck and it ended up being the ICP sensor. We switched his ICP with mine and I changed my oil at the same time (because it was due for an oil change). My truck ran flawless for over 2-weeks (over 200 miles) so I put a new ICP in my truck. Note: my buddy did not experience any problems with his truck with my ICP in it.
I've put about 700 miles on the new IPR and the truck has started to act up again. Once again shutting the truck off & re-starting it will clear it up and still no check engine light. I took it to a local "diesel specialty shop" while it was running rough and they hooked it to their scanner and got P1280 (Inj. Control Pressure Low), P1690 (Wastegate Solenoid Fault), P0381 (Glow Plug Indicator), P0269 Cylinder 3 Contribution / Balance Fault, and P0284 Cylinder 8 Contribution / Balance Fault.
They never did anything other than hook it to a machine & check the codes but their diagnosis is my High Pressure Oil Pump is going bad and my #3 and #8 injectors are going bad. They recommended I let them replace all 8 injectors and the High Pressure Oil Pump. The problem I have is they can't give me a REASONABLE explanation as to why re-starting the truck a few times clears up the problem.
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I have a 2001 F350, 7.3. My service engine light came on and immediately the truck started to run rough and lose some power. I've checked the under the cover connections and they were both connected, I replaced the cam position sensor and I still have the same problem. The worse part of the hold thing is that there are no codes stored so I'm flying bind. Where to go next.
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I've got an 03 f250 superduty and a few weeks ago i was driving home pulled to the side of the road to get a phone call and my truck sounded like it was misfiring and started to shake very rough so i quickly got it home and it barely made it up hills with no power at all, took it to the mechanic and he said it was my wiring harness, so i replaced it and it took weeks to get here and i finally get it in and my truck still seems to be misfiring ad idling very rough, I replaced my oil less then 1000km ago and I've had 2 injectors replaced. I've talked to a few diesel mechs and he recommended to put some hot shots in it.
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I have a 1999 f350 with a 7.3l in it. A week ago I stopped at the pump and topped of my tank and when I went to restart it it it would crank and not fire. I had it towed and replaced the cam sensor with an aftermarket one. It ran but it would cut out when I got into the throttle and wouldn't start when hot. I bought another aftermarket one and it did the same thing. I tested the hpop pressure at the back of each head and everything checked out perfect while running. I replaced the Ipr with no luck.
And I also tried unplugging the icp sensor and it didn't make a difference. It starts perfect when cold but when it's hot and you shut if off it will just crank. I replaced the cam sensor once again with a ford one and everything worked perfect and it started no problem for a day then started doing the same thing again. I've taken a close look at all the wiring on the motor and it looks good. Battery's and starter are new. All the cylinder contributions test good as well as the injector buzz test. I'm not noticing any change in oil. Oil was changed 800 miles ago
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My '99 f350 lost a lot of power the other day, turned out the the injector harness got unplugged. So I swapped those out for oem ones, ohm tested the uvch and injector harness, put a brand new GPR, and still nothing. Cranks over but won't start, what else could it be?
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New to the forums, not new to fords. 1999 F350 7.3L Diesel. This has been a work truck and has seen multiple devices in and out over the years. I removed the last crap for GPS tracking etc from the last owners. The truck has worked well for a long time since until...
I'm moving slowly to a different state and so the truck got parked for 2 months. went to start it and nothing. the dash comes on and all the lights come on but when you turn the key to start the power drops and nothing.
Testing so far:
replaced the fender Solenoid
tested the starter motor and solenoid -passed
replaced the ignition switch
tested continuity of the hot and ground wires to the fender and starter and everything passed
When I shorted across the fender solenoid the starter works and tries to start the truck (unsuccessfully so far)
So the wire that goes to the fender solenoid is not working and where to trace it to and what needs to be fixed. Is there a relay or fuse besides number 30 that is in the way? where does the magical wire go so i can check its continuity?
I am stuck 800 miles from where i need to be and I am stuck here. I don't have the cash to get a mechanic and my mechanic friends are stumped. I do have a Snapon modus tester, what to do with it.
FYI the batteries are new and fully charged.
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I've replaced the alternator and starter recently and both batteries and the truck ran fine befor that. But it sat for roughly 2 months and now it seems as if its not getting fuel. Will start with a shot of ether but will die as soon at it burns it off
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2002 F350 7.3 intermittently wont start after I've shut it off, it runs fine but sometimes won't start when it's (warm)? Wait hour or more and it starts right up.
Is there something I can look for before I bring it to a mechanic?
Just to clarify I am a gal with little wrenching skills but I can look at videos and follow directions if it's not too involved.
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I have been having problems with my truck for about 6 months now. It start in Sept when my fuel pump went. I got a new pump and went to change it just to have the back clip break off. I fixed the line after getting 2nd degree burns from the boiling water I had to use to expand the line and installed the new fuel pump. Didn't fix anything.
At this point is was dropping below freezing every night ( I live in Canada in the mountains) so I thought it might be my plug relay again... changed that. After that my started has always missed so I figured I would change it out and sure enough the power bolt on the starter was broken. Changed it.
Then it started smoking and I read up on the quarter trick so I figured why not try that. I checked everything and they all checked fine but I am a glutton for punishment and figured I would do that valve cover gasket. So opened it up to find one of my glow plug wires on my harness was burnt up. I have a spare truck for parts so I grabbed the wire and replaced it. Still no change.
Today it was spitting out the usually raw diesel that I have gotten use to but when I was opening the gate to get a manlift for work I smelt oil just to find my turbo coved and the V had a small pool of oil happening there. I added 4L of oil and tightened up my valve cover back bolt on the passenger side... it may have fixed the leak but didn't have time to check.
I backed up to the manlift and it lagged a bit so I gave it a pump of the peddle and it died. Now it won't start. Charged batteries and tried after it cooled down but still no go.
In short my truck has been smoking for about 4 months now. It shutters at low RPM and stalls at the bottom of hills if I gear down on the hill (we have really steep hills around here). I have changed my oil three times in the last 6 months but it keeps coming out black (which it always has). No water in fuel or oil. Once and awhile it had problems starting when it was warm but after bellowing out massive amounts of smoke it would start. The truck turns over but wont start. There is no power where it died so I have to come home and charge the batteries every time they get low but even after it cooled down it still wouldn't start.
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I have a 2000 F350 7.3 ... A couple weeks ago I noticed that it was taking longer to start then it should be. Now I have to cycle the key switch 3 or 4 time to get it to start. There is a clicking coming from the relay block under the radio. Sometimes the truck will start sometimes it has to be rolled off. I have recently replace the starter and alternator. I have had the batteries tested and they are good. I replaced the two small relays in the block under the radio, one is for the fuel pump and the other I understand is for the door locks? I also read on here the large blue one is for the turn signal so I have not changed that one. After all this I still have the same problems.
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I just started having a cold start problem with my '02 Excursion this fall and I'm at my wit's end trying to fix it. Truck starts fine above about 45 degrees and when it's warm. If I plug in the block heater it also starts fine in the cold. If it's not too cold I can eventually get it started by continuing to crank it. It blows white smoke while cranking and for a few seconds after it finally turns over. Smells like fuel. Runs rough for 30 sec after starting when it finally turns over. Definitely seems like glow plugs aren't working. This truck started no problem on GPs alone without plugging in down to -20 deg F before this year.
I started by cleaning all battery connections, including the two ground posts on the engine block, I replaced one bad battery (diagnosed by Autozone; other one was OK), I checked the resistance of the glow plugs (only a few years old with about 30k miles on them) through the connectors on the GP control module (all were about 1 ohm), and confirmed 12V at the power pins in the GP control module connectors. I then replaced the GP control module and the problem is still present. Battery voltage drops from about 12.6 V before I start the GP cycle to about 12V when I turn the key to "ON" and the GP light comes on. How much should the voltage drop when the GPs are on? What the heck else could be wrong??
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I have an issue with my 2001 f350 7.3 PSD. Intermittently it will not start. It will crank really quick, but will not even try to start. I think it is not getting fuel. There are no CEL codes and I have a WTS light and the tach is moving while cranking. I hear a clicking/buzzing sound coming from under te center opf the dash. When I hear that sound it will not start. checked fuses and relays and it started before. not sure if removing the fue made whatever reset. this has happened a couple times. Now it will not reset. When I remove the number #24 fuse under the hood, the clicking stops. when i crank it, but still doesn't start. When it starts in runs perfect. Drained the batteries trying to trouble shoot, but have them charger now.
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It's a 99 f350 7.3 diesel powerstroke. About 180k miles I think.
It cranks fine. I just changed the glow plugs(all were dead) but when you try and start from cold, it takes about 7-10 seconds to fire. The oil res is full, tried disconnecting the EOP sensor, still fires up and takes just as long. There is one near the oil filter, and that seems to not be it either.
Doesn't smoke, no oil leaks that I know of. Not sure what else to check before sending it to another shop to get put on a diagnostics machine. I read about the IPR, but it has no problems when running. Only problem is a very long time to start. Also changed the fuel filter.
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My 2001 7.3 in a f350 automatic has this problem. I tried to start in am, no wait to start light comes on, but the od/off on auto transmission handle is blinking on and off. Turn key off and back on, no blinking, instrument cluster lights up as normal but no wait to start light, engine turns over as normal but no start or attempt to start, engine has about 56000. replaced glow plug relay, still nothing.
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2003 F350 7.3L 164k miles. Got towed in with hard to start cold complaint.
Hooked it up to the Snap On Verus Pro scan tool and we get up to 3000 psi on the ICP cranking, IPR value seems within spec, we have rpms over 100 on tool, pulse width within spec, computer voltage above 10v while cranking, verified output of glow plug module (California) and glow plugs get voltage for approx 50 seconds @ 80 degrees farenheit, glow plugs all read 0 ohms resistance.
injectors do NOT sound the same during buzz test.
Vehicle takes EXCESSIVE cranking cold to eventually get it started. LOTS of cranking. Just had to replace starter and a battery because driver burned em out. It feels like the vehicle shakes when it gets running. Black smoke when revving cold. Sometimes white smoke while cranking.
Once the engine has been warmed up, it starts perfectly every time.
I have spent two days in the engine bay looking for chaffed wires and doing diag and my current diagnosis is bad injectors. I feel there COULD also be high pressure oil leak, or a mechanical issue such as low compression. No compression guage yet for this truck. We have the ICP and IPR fittings to do a shop air test. Recently did a 6.0L and went thru everything and eventually diagnosed it as bad HPOP. LOW ICP pressure.
I noticed two of the cylinders were at maybe 8% Perdel on the data. Seems too high. Also, it "passed" the KOER self test and "passed" the injector buzz test with no codes after, but the audible sound of injectors didn't "seem" right to me, but I am new to these engines.
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