Ford 7.3L Power Stroke (1999-2003) :: Truck Would Not Start When Cold Outside
Mar 14, 2016
Ok truck would not start when cold outside. So I put a gpr on truck. Truck alt would only put out 11.5 ... After I put it on. So I put 4 new alts on all read the same 11.5 and the battery's would drain over night. Turns out they gave me a starter relay. So I have the proper one now. Now when u turn the key the everything is flashing the dash dome light buzzer. But take one of the small wired off the gpr, it stops but I have no power to the starter. It's been 2 months of hell trying to figure it out.
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I have the LED mod and several weeks ago, my LED stopped indicating and the truck would not start in cold weather unless I jumped the terminal on the relay. I replaced the relay and while I was tightening one of the small lugs, the one towards the nose of the truck, I felt it break.
The truck acted just like it had been for the weeks prior, if I didn't jump the relay, it wouldn't cold start, so I assumed, because I had broken that small lug, it wasn't getting the signal to turn them on.
So what now? obviously the GP's themselves are working, as the truck starts when I jump them. But for some reason no signal is getting to the relay. What do I need to check to see what is going on between the PCM and the relay?
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My truck runs very rough and lacks power when cold, even during the Texas summer. Once it warms-up, everything is fine. It's almost like turning on a light switch. If it's plugged in for a couple/few hours, it's smooth as soon as it starts. I'm assuming it likes the oil once it reaches a specific temperature. What my problem is?
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I had issues with my F250 cranking last winter when the temperature dropped, so I changed out the glow plugs in the spring. I hadn't been able to truly test them yet, since it hasn't been cold, but the other morning my truck wouldn't crank up. It was 40 degrees out the night before, and it had been almost 24 hours since I cranked the truck, but it seems to me like the truck shouldn't have an issue in that mild weather.
I'm not sure what I need to do next to try and fix this problem, it's been driving me crazy and risks stranding me if I park for a while in an area where I am unable to plug by block heater in. The truck cranks fine when I have had it plugged in for a while, so I'm fairly certain it's a heating issue. I haven't done any tests since last year, but I know that the GPR was working properly last winter, which is why I changed out the glow plugs.
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I have a 2001 7.3 with 259,000 miles. It does not get too cold here, however over the past few winters when the temp is below 50 at night the first minute or two of running out of the neighborhood is tough going unless I let it heat up. It has been getting worse over the past few years and now if its even 55 or 60 I need to let it heat up. Glow plugs? Injectors?
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2001 F250 7.3l 294k miles
Ok so truck has always had difficulty starting cold since I got it about 12k miles ago. Replaced glow plugs, that made things slightly better but still no start unless temp gauge was in that first line above the C. Changed to Rotella, immediately after oil change starts better and at slightly colder temps.
Since getting the truck when you turn the ignition on you can hear a 'whistling' type noise which I believe is the fuel system pressurising. That used to last as long as the chimes did when you first turn the ignition on. More recently it lasts a lot longer.
Towed recently and had intermittent check engine light - believe this could be HPOP related, haven't checked codes yet as we're on vacation. No oil in the valley. But I do have a little oil carry over in the turbo intercooler pipes.
Truck slightly sluggish at setting off initially and then picks up reasonably well when not towing but my Dyno says I'm putting a bit more pedal to get the same performance from say two months ago
Pretty sure injectors haven't been changed since truck was new but can't be absolutely certain as there is no history. I was surmising this is probably both a HPOP and injector age issue but only from what I've found searching...
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My brothers high mileage 7.3 ran out of gas because of a broken fuel pick up line. I brought him 10gal fuel, primed out of it and now the truck is sputtering and sounds like it's running on 2 cylinders. It's not just air in injectors or something it sounds like crap. It's getting fuel at least to the bowl.
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This past weekend I noticed I was loosing boost pressure on my 2003 7.3l F250 so I pulled my turbo out found the problem fixed it then put the turbo back in. After it was all said and done I went to start the truck up and it just cranked and cranked a cranked but no start. Worried I didn't hook something up right I checked and rechecked everything to do with the turbo, all good nothing out of the ordinary.
I tried to start again, nothing. Spent all day yesterday trying to figure this out. Replaced the cps still nothing. No movement in tach but I don't remember any on startup anyway. Drained the fuel filter had adequate pressure and such but replaced the filter anyway. Still nothing. Checker all my fuses, one by on and non were blown but I still tried disconnecting my fuel bowl heater and still got nothing. I tried disconnecting the Icp still nothing. There was no oil around the icp either.
I'm getting frustrated that the truck wont start, the truck ran perfectly fine before the turbo removal but now wont even give a sign of kicking up. Just cranks and cranks. Also checked Hpop to see if that's the cause and it's filled like to the brim. But when I'm cranking the truck about 10 sec into the oil pressure gauge kicks up and reads good but only when cranking.
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I bought this 16' box truck today. 7.3L, 213k, 2003. It doesn't start and the owner gave a really good bottom dollar deal for all these reasons. Showing up armed with Torque Pro and my bluetooth adapter, I proceeded to plug it in and check for rpms, HPOP, Battery voltage, etc. No power to port
Find fuse diagram the owner located and fuse 23 is the OBD port. No fuse in place. He found us a fuse, I plugged it in, viola! Power to the port, TP is in action, ready to troubleshoot.
"Charged" battery, start cranking...no start. No Torque Pro (!) Apparently, the OBD port is cut-off while cranking .... Is there some other fuse or connection that will keep it connected during cranking so I can check for RPMs (no dash gauge for it)?
As soon as I left off the starter, the HPOP on TP showed 1212 then 850, then continued to drop with in about 2 secs. I figure it is getting good HPOP and this is the momentary bleed off.
PO replaced some time ago CPS with Autozone or something in an attempt to start it. No go. I am going to take my "emergency" CPS next time to see if that does it.
Because of the cranking-cutout, I cannot see FIPW. No way to know if the injectors are firing. It had reportedly been running a short time ago (weeks maybe?) and shut off while parked in the parking lot and never started again.
Batteries are low, but new-ish starter and cranks well. With jumpers, able to maintain 10.8v or so while cranking, though it was a bit up and down. I'll take a strong charger with 200amp boost mode next time.
Fuel pump runs. I can feel/hear it when the key is cycled. It has standard Rotella 15w-40w on this 50F day. Reportedly *wants* to be plugged in to start. I plan to switch to 5w-40w synthetic as soon as I can get it home.
It's automatic, pretty sure all van/stock. Here's a pic. Dog box gives good access to turbo and such, but everything else...
One battery under hood, other under cab/body. Has green antifreeze and leak at thermostat.
My goal is to get it running to get it home, about 30 miles, then replace ICP, CPS, IPR, Glowplugs (relay already done), thermostat and top housing and hose, convert to lifetime antifreeze, oil change to 5w-40w synthetic, 2 batteries (test alternator), uppipes or gaskets, Air filter (what upgrades available for this?), UVCH, idler pulleys and belt, replace trans fluid and filter, couple tires, paint inside box, weld and reinforce rear bumper, add radio, check cigarette plugs (think cell phones and gps), general cleanup.
I will have it and run it around 30 days. If it is solid and reliable, off to West Virginia it goes. If not, I'll part it out to get back what I can from it. I am paying for it up front, they are raising donations. But I won't let them pay anything (costs only) for it until I'm satisfied.
They need to run it about 5hrs round trip once a month immediately. That's about 3k miles per year. But I'm sure they will find lots of other uses, such as building supplies, etc. I'm hoping the injectors hold up for a while.
Right now they have multiple vehicles, trailers, drivers donating their time and vehicles (reimbursed for fuel only). It would be much better to take one hauling truck and one or two passenger vehicles... hence the box truck idea.
They distributed approximately 100k lbs of food last year. Not refrigerated, not needed. No CDL needed, about 14k GAVW. The PO has offered his carport where it is parked now, or even to push it into his garage with limited tools (I can bring some) to get it to run. Otherwise...
How to get this home?? Too heavy for my buddy's tow truck from the front. Wheels too far from back of box to reach them from the rear. No tow loops in front for tow bar, UHaul dolly rated at 4k (maybe?)
Dual rear wheels. Anything else I'm missing?
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Truck cranks wont start. Fuses and relays good, New motorcraft; IPR, ICP with pigtails, New T500 hpop, New 180/80 Injectors, Push rods, 910 valve springs, Mellings lpop. Motorcraft oil cooler.
Reservoir full, oil new 15-40w Amsoil, Rails full, Fuel bowl full and clean, HPOP drive gear rechecked and torqued.
RPM 180
Temp oil 88*
ICP duty cycle koeo 14.8, crank 64.85
ICP pressure 250 -450psi
ICP voltage .27-.50
Manual gauge on oil rail 250 -450psi when cranking
Inj pulse width .0005,
Buzz test was good
Vref 5v all sensors. 12v at IPR w/koeo
Fuel pressure 58psi
Air test hpop hear no leaks with stethoscope.
DTC codes: P1280, P0380
Also put straight edge across injectors to double check they were seated.
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The first has I replaced my tranny with a stock 4r100 tranny and torque that only has 75k on it. The guy was doing a 6-speed swap. After I had the tranny and torque converter and a new tranny cooler installed, the tranny shifts real hard. I think it may be from my DP Tuner. Even on my economy tune driving it very easy sometimes, it jolts into gear pretty good.
I was wondering if I could just get a shift kit to maybe correct that and if so if I would have to drop the tranny to install the shift kit. I saw a bully dog kit for like 75 bucks, however, I don't really have the money to have the truck in a shop and I would really like to not drop the tranny and not lose all my tranny fluid if possible (very expensive).
Also my other issue, the truck in warm or cold weather is very hard to start. Half of the time it takes two tries to start it. It will crank and crank and no go. Then the second try it fires right up. It has two new batteries, where do I start? Is it possible that the starter is just getting old or is it fuel or oil pressure related possibly?
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I bought a 99F350 with a 7.3, it was not running when I bought it. Batteries good, new starter, turns over just fine, fuel pump works, but now I don't know what to look for.
Was testing ohms for my injectors and at the plug on top of the driver side valve cover, couldn't get a reading at all, tested the ohms at the pass. Side valve cover plug and got good ohm readings.
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Truck is a e99 f250sd 4x4 7.3 manual trans. The truck started and ran fine to work this morning. Went to leave this afternoon. Hopped in, put key in and tried to start it. Engine just turned over, never started. Thought that it didn't start because I didn't let the plow plugs warm up enough. Turned ignition off, turned back on and let wait to start light to go out. Same thing happened again. Just turned over but wouldn't start. As far as I can tell the fuel pump is running. Felt it vibrating while the ignition was on. What to check.
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So I have a 2001 f250 7.3l and on my way to work yesterday while driving down a hill I switched my ts 6 switch to 140 and it immediately stalled, so I pulled over and restarted the truck and it started up fine and I drove the rest of the way to work, I go to start it after work and it won't start, it just cranks and cranks and cranks, occasionally it'll fire and I got it to start and was able to rev it for about 30 seconds but then it died, disconnect the 6 position switch from the idm and tried but still nothing.
So today I replaced the ipr valve, got everything back together still won't start maybe a little worse now, I know it's getting fuel cause there's pressure in the bowl when I try to take it off, there's a new icp valve, cps, new fuel filter and new sending unit, the hpop is topped off. Also I noticed when I went to change the ipr the wires on the plug were bare and touching so I addressed that, I don't know what else it could be?
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So a few weeks back, i went to the store after work, came out and my truck just cranked and cranked but wouldn't turn over. I simply turned the key off and back on, waited for the WTS light to go out and she started up. I just blew it off, thinking i didn't wait long enough to start it.
Then, later that week i come out of a restaurant and it cranks and cranks but doesn't start. i tried turning the key off and on, waiting 30 seconds between em and still nothing. Then a few minutes later, i try again and she fires up, no problems and runs like a champ.
Well 2 fridays ago, I go out with some buddies, go to leave and it happens again. Cranks and cranks, but not starting. I got a ride to my place, grabbed a fuel filter, thinking maybe its clogged, it's been awhile since i changed it. I got back to my truck, and it started up fine, without changing the filter.
Then last night as i am out of town, 10 hours away from home it happens again. And i kept trying and trying and trying but it never wanted to start. I was about to submit my payment for the Uber back to my hotel when i decide to try it again and it fired right up.
Now I'm kind of afraid to drive anywhere and shut off my truck in fear of being stranded. What could be causing this? I've looked every where and havent found someone with the exact same problem, usually when i find a thread on turning over but not starting, the truck dies once it runs as well. Mine doesn't. when it starts, she runs great.
No smoke coming out the tail pipe when cranking.
WTS light comes on and off as it should.
Tach does not move, and it won't because it's a 2002.
Where to start, would the CPS cause it to act this way? It only seems to do it when the engine is warm.
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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?
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Background on the vehicle, Last week installed Swamps 200cc/30% injectors with a 38r. Had swamps reburn my chip for the new upgrades.
But heres the problem i noticed starting the truck was a little harder ( longer cranking ) till it would start never thought of anything since i read air gets in and can cause it but then yesterday and today its taken 30 minutes to start the truck since i have to do a trial and error.
The truck just seems like the batteries are being drained or something along those lines. i also noticed my gauges keep resetting back to blue( default color). Today I plugged a battery charger up all good voltage i charged them so both read 14v and still no start. So a couple of attempts at starting with chip in and ICP on nothing
I unhook the chip and ICP get a half start then eventually it starts. After then i can hook it all back up and it starts good for the rest of the day but for what ever reason after it sits all night it doesn't want to start up right away. I'd like to figure it out today since id rather not wake up at 4am and attempt to do this all before work each day.
I noticed that my gauges would reset to the default color after each turn off. So i unscrewed my ECU and then redid that to make sure its tight. along with making sure the chip is seated properly. after that it stopped resting my gauges. Whether that's the issue or not i cant say but ive been checking my HPOP oil level since i stopped driving it around 1400. and hasn't changed oil levels are good. I plan on starting it before I go to bed around 2200-2300 just to check and see what happens.
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Alright, my 1999 7.3 keeps dying on me in the morning. About two weeks ago I noticed it started to have a weaker start up, even though it has two brand new batteries. Once it starts up, I get around the block and it dies there every time. Then I have to crank it for about 15 seconds for it to start again.
The crank gets faster and faster until it finally start, and the engine is very choppy, like its starving for fuel. After about ten seconds of that it return back to a smooth idle. I then take off, and about 50 yards later it does the same thing. After it does it the second time, the truck runs just fine for the rest of the day with no problems.
I have noticed that when if I turn the truck on and let it idle for 10 minutes first in the morning, it won't die on me. I replaced the camshaft position sensor thinking it was that, but it wasn't.
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I have an 02 f250 230,000, first 7.3. I've owned it since Oct and put less than 6,000 miles on it. I have another cold crank no start. New glow plugs and Glow plug relay last weekend. Worked fine that weekend. It sat all week, then crank no start fri night, it was like 70 degrees for the high that day. Plugged it in over night and it started. Did not fire right up cranked it for a couple seconds. I drove it all day, started every time. Valve covers have 5,000 miles on them. Fuel Filter heater fuse not blown. But don't know how to check it for sure. And don't know where to go with it from here. Getting frustrated with crank no starts. No troubles found.
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2003 Ford 7.3 E450 ... Just recently got Auto Enginuity Ford enhanced
The problem....The van will run when plugged in for 2 hours or on either. Once started the van runs good. It will not start on its own even at 60 degrees
I got the following codes
KOER (Key On Engine Running)
P0476 Exhaust pressure control valve range/performance
P0673 Cylinder 3 glow plug circuit
KOER (Key On Engine Running) Cylinder Contribution
P0278 Cylinder 6 injector circuit contribution / balance fault
KOEO (Key On Engine Off)
P0113 Intake Air Temp Circuit High Input
KOEO Buzz Test (Key on Engine Off Buzz test)
successful
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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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