I have a 7.3 that's running rough. Started it the other day it ran alright but started blowing white smoke. Bought a oil and fuel additive i was going to run through it. Came a few days later, it stated up and was real loud and sounding like it was loping. It blew a good amount of white smoke, but it just smelt like real heavy diesel. Now i can only turn it over and it won't start.
View 2 RepliesJust happened today right after I bought diesel. thought it may be water in fuel but after researching wondering if it is injector, etc. It starts every time knocks real bad sometimes for a minute, but clears up to idle ok. During idle no smoke, slightest acceleration however produces white smoke harder I accelerate more it plumes and it smells like diesel in the air.
Cannot get past 15 or so mph till switching into 2nd gear then 25mph max. Had to drive 4 miles like this I can say it cleared up and drove 1/2 mile until I had to stop at a traffic light then going from idle to acceleration again ran bad rest of way home another 2 miles.
A few years ago I did have a rough idle and accel. similar and it ended up being the broke pick-up/sending unit in tank (but of course that was when you get to around 1/4 tank of fuel and didn't run bad above that much fuel in tank), plus there was almost or more than a gallon of water in tank. I have done the mod for the fuel pickup with hoses, filter canister, etc. but wondered at first today if I had gotten bad gas or water in the tank again. Not sure how that much water got in the tank to begin with but that was bout 5 or 6 years ago.
Truck has over 200k miles and Ive had it for 11 years. In the morning will check the ICP sensor by unplugging look at fuel filter bowl, etc. A question I have is: Is water heavier than diesel, would it run thru my line first? thinking diesel is heavier than gas because of oil content....
I had been fighting some problems with injectors for several years. I didn't have time to dig into it. I knew what I needed to do, just needed to find time to do it. I honestly thought it was and injector and thought I would have to go to new sticks because I've had so many problems with the remans.
Well I finally had time last week. I pulled the passenger side valve cover and ohmed the injectors. It would be almost impossible to get the leads in the injector while installed the truck. I kept an old valve cover harness, so I cut a pig tail off of it and plugged it into the injectors so I could test. You can see the meter attached to the pigtail in the pic.
To my surprise all four were all right around 2.7 ohms. You need to set your meter so you are getting a reading w a decimal. If you set it to high it will only show a whole number and it is better to have a more accurate reading.
I then plugged the wiring harness back in and tested it from there. The #7 injector gave over 6 ohms. This told me that my wiring harness was bad. I went OE and replaced it. I had a problem w a Dormant valve cover gasket before so didn't want to go that route. After I replaced the gasket and harness all my readings were under 3 ohms. They were all lower than w the old harness.
SO, I've owned a 92 f250 7.3 for 10 years and it's got over 340k miles on it. Well, she is getting tired so I'm debating replacing the truck with a SLIGHTLY newer model.
I've found a truck that is a 99 7.3 powerstroke with a 6 speed manual and 260k miles. Knowing these engines I feel this truck has at least another 100k in it if the thing was somewhat taken care of. The issue is that the fella that has it for sale says it ran great for years and one day started blowing white smoke while driving. Other than this new issue it runs fine.
So my question is, what could be the issues causing the white smoke? I always thought white meant unburned diesel or maybe antifreeze. Head gasket comes to mind but it's not something I've ever dealt with.
I like that he parked it when it started having issues. Sounds like someone who doesn't completely trash their vehicles. Too high given the condition? Truck looks and sounds pretty good aside from the smoke, pretty reasonable condition.
I am a mechanic and tow operator running a late 99 f350 7.3 6 speed cab and chassis wrecker. This truck has had a hard life and has been neglected for quite some time, and now has become my baby/headache. Truck starts great, idles nice, and will run great for about 5 minutes until it starts billowing white smoke that smells like fuel and loses all power. If you continue to drive it it will die. Sounds like it's dropping cylinders and will barely idle. If you stop for 5 minutes or so and let it idle it will smooth back out and will run great again for another minute or two, then right back to stumbling.
Using torque app, hpop pressure looks good when it's running well. Peaks at 3k, IPR maintaining 30-40% max. As soon as it stumbles you can see the hpop drop to 5-600 and the IPR will climb to 65%. Let it idea bit and they go back to normal, and stay good until it stumbles again.
Ive changed the fuel pump, ICP,rebuilt FPR, change fuel filter, pulled and cleaned the fuel tank (metal tank, no delamination, looks perfect inside). Pickup screen looked good. Cleaned the IPR, cleaned the hpop reservoir, there was no screen inside. Checked voltage at fuel pump, 11.78 across the pump with it running. Pulled valve covers, no noticeable leaks around injectors. Injectors have less than 5k miles. Remans with 100% larger tips.
To me it seems like the lpop is not keeping up with the hpop under load, starving it until you idle and let it catch up. Could it still be bad injector orings? Bad lpop? Something I'm not thinking of?
Moving my worldly goods from California to Oklahoma in a rented 26' box truck with my wife following in our '02 F350 loaded to the gills with my lathe, mill, air compressor, weld and assorted machinery. Just west of Deming NM it started to blow lots of white smoke and down on power. Some rattling noises from the engine when throttled up & won't reach 3000RPM.
Had it towed to an impound yard for storage. Plan on sending a flat bed to pick it up when we get to Tulsa.
Any experience with a tilt back trailer capable of loading & transporting this truck that weighs around 17,000 pounds? My plan is to continue on to Tulsa & make arrangements from there.
Recently since the weather has been cold. between 0-30 degrees or so. My 2002 7.3 with 161k on it is smoking a decent amount i think. far more than i ever remember it smoking thats for sure! anyways its a combination of blue and white smoke and it doesnt last long when the truck starts maybe 1 minute and the smoke stops.
But I also notice when i rev the truck maybe around 1200 rpms the engine shakes very bad. so i was thinking maybe a glow plug went bad making the engine seem like its missing. but even when its warm i rev it up to 1200 and i still feel the engine shake slightly. Maybe im just being picky when its warm? I need to test the glow plugs and go from there but i want opinions about that issue. the truck sits for 4 hour periods and every time i start it i have smoke. I will pay attention tomorrow morning if it smokes after being plugged in all night and post my findings.
My other issue and this typically happens when its below 20. sometimes i will go to accelerate after coming to a complete stop and the truck kinda has a very weak rev to it then just takes off like the tps took a break on me. sometimes i have had it jerk the truck when the throttle catches and other times it creeps at first then takes off like a boost of power.
lastly and this little issue happens most noticeable at 35 mph. i feel a surging im thinking this is related to the tps but i put the truck on cruise control and i still feel the surging. maybe this ties into my second issue? bad TC? ive plugged in my scanner and the only thing jumping out at me is the icp hunts about 100 psi or more at idle. i plan on doing a WOT test on the HPOP, ICP and IPR tomorrow and see if maybe this is just a weak hpop causing my issues.
Repairs i have done:
new 8th injector and all new injector seals about 25k miles ago.
new ipr
new icp
have CCV mod done and 4 inch turbo back exhaust
new map sensor
cleaned out the EBP sensor and tube but that was probably 40 or 50k ago now.
gray cps and i cant remember when i put that on.
gutted the EBPV
bellowed up pipes
no tunes the truck is factory as far as that goes.
I have a 2001 7.3 that almost has everything practically brand new... new hpop, water pump, uvch, gpr, glow plugs, icp sensor, ipr sensor, cps and new turbo pedestal that was leaking oil, well now my truck has a cold start to where it has to be plugged in to start and when it finally does it smokes white pretty bad, misses and sounds like it's jumping around under the hood up until it warms up and revs fine with less white smoke but still a miss!!
Compression on test has been done, and good, fuel pressure is good, but the buzz test when cold shows 123457 muffled and quite and when the truck is warm only 3 and 4 are still muffled and quite? Injectors sticking?? Or just need New injectors!
My 04 PS was blowin white smoke constantly while running. I just towed a uHaul from Connecticut to Virginia Beach and had some coolant issues on the drive down (I was out of coolant on 95 in PA, added coolant and it made the rest of the drive no problem). I got here to Virginia and it was low on coolant again. I added coolant to it, and now I have some other issues. I had what looked like oil comin out the stacks onto the bed, so I pulled the turbo thinking it was seals. But the turbo was just rebuilt prior to me buying it with a wicked wheel in it. It still had stock EGR and it has 202K on it.
Checked and found EGR valve was wet. Ordered an EGR delete kit, and just finished installing it. Now with everything put back together, the truck doesn't want to start. It cranks but doesn't fire. I pulled the codes from my tuner and I got: P0403, P0405, P0683, and P2623. I know P0403 and P0405 are related to EGR but the others I'm at a loss on. The EGR delete kit I bought included the blank to remove the valve but what do I do with the plug that used to plug into it? Any way forward to get the truck back up and runnin again? This is my daily driver and not lookin to break the bank to get it goin again but I really need her to be reliable.
01 7.3 247k.
Yesterday went to get on the freeway I looked back and saw a cloud of what looked like blue smoke. I'm in northern Utah and it's cold but the truck runs fine, I haven't noticed any change in performance. Turbo still builds boost. I pulled the fuel filter cap last night to check fuel color and it was clean.
I do have the CCV mod done. I also pulled to IC Pipe off the turbo and there was a little oil in there but not much, should there be any at all with the CCV mod? Where to start.
7.3 auto, starts and idles OKAY, drives fine if you have a light foot but trying to go faster than 50mph or more than 2000 rpm and the whole thing has an anxiety attack. Starts sputtering and popping, lots of grey smoke when it runs rough rough, let off the throttle and it MIGHT behave nicely again.
New lift pump, cleaned the pickup tube, fuel bowl fills nice and fast, just had my edge attitude juice tuner removed since it was causing similar issues that went away for the last 2 months, changed my IPR and CPS (had a mechanic test everything when the tuner was taken out, all injectors buzzed good, sensors good)
When this first happened after the initial problem with the tuner was resolved, it did throw the CEL, but I have since been able to get it to come back on, and my buddies OBD2 scanner wasn't even registering my truck when I hooked up... Dare I say PCM is to blame?
I picked up a 2003 6.0 awhile back went ahead and did studs,gaskets, delete. Was driving it and seemed to lose power, started coughing and carrying on blowing bluish white smoke then shut off. Ended up hydrlocking #5, Oring on injector was tore when took out. Put all back together, ran horrible, did a balance test with AE, showed #3 injector, replaced, ran horrible, did AE dropped #1 injector. So in process of replacing the rest of the injectors. Just wondering why it is or was dropping them 1 at a time. Ficm was showing 47.6 to 48.6 volts, could that be it?????
View 14 RepliesI 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.
View 8 RepliesMy 2001 7.3 is smoking only when barely on the gas. New fuel filter. Don't know if its possible injector going bad or what? Smoke is white not black.
View 1 RepliesI have a 2006 F350 6.0 litre diesel. The other day I started it up drove away and it was blowing huge plumes of white smoke out of the exhaust. Shut it off.....started it up again after a while then went on a long drive and it went away. What that was?
View 6 RepliesI have a Tymar intake, magnaflow exhaust, a DP Tuner and I have Rosewood Diesel injectors.
I had a bad oil leak recently and it seemed to be coming from the turbo area so I changed all the o rings back there and deleted the EBPV system (I cut out the butterfly and welded the holes shut, cut the part of the pedestal that held the actuator because it looked like it was leaking and welded the oil holes in the pedestal that fed it. I left the actual EBPV sender in the pedestal and kept it connected to the harness)
After all that was done I checked the oil and it was low but still on the dipstick so I drove it to the local parts place to get some more oil, about 2 miles, because I wanted to check for leaks. It was not happy, ICP low code came up it was sputtering and jerking when stopped at a light. I got to the store and parked it, it took about 3 litres of oil and seemed to run pretty good after that.
But on the way home I noticed a bunch of white smoke, I figured maybe an injector was stuck. I started it a little later and no white smoke in the driveway so I thought maybe it had gotten lubed enough and had sorted itself out. That was a few days ago.
Today I started it and let it idle in the driveway for about 15 mins and no white smoke, I wanted to get it up to speed a little so I took it to do an errand that was about 10 miles away, lots of lights and a bit of highway. It would run fine while going at speed but as I would slow down for a light the ICP would go down to around 600psi and the white smoke would start, as sitting idling a huge cloud of white smoke would form (yes, I was that guy), once I could take off and get it running a bit harder it would go away again.
I am assuming that I have a stuck injector (or cracked), I have no oil in my degas bottle and it doesn't look like it is fuller than before. Seems like I may have used more fuel than I should have, but pretty hard to tell just from the fuel gauge.
I have tried a buzz test and they all sound the same, tried a Compression Contribution test, no codes from that.
How can I locate a stuck injector? If that's what it is?
I have long been having troubles with white smoke at startup, even when its 90 degrees out. Long story short I've got new glowplugs, GPR, UVCHs, valve cover gaskets, injectors, turbo, valve seals, valve springs, and HPOP all within the last year. Most of those parts were needed, some maybe not so much. After installing injectors things started getting worse, whether they're related or not I'm not sure yet. I pulled passenger side valve cover off again in an attempt to figure something out and heard this coming out of the intake spider.
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The strange thing is it goes away when it warms up. I should also note the reason I started with the passenger side is because I did a compression test and this side had the lowest readings, with #5 being 270 psi. I disconnected each injector one at a time on the passenger side to see if it made a difference while running but didn't really notice a difference. Am I looking at a motor rebuild, or at the very least a head removal?
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 RepliesWhen my 99.5 SD is cold ( 50-60 f) it smokes a lot of white horrible smelling smoke for the first 2-4 minutes. If plugged in the block heater it doesn't do it. Also when cold, when you accelerate the SES light comes on until you let off on the throttle then it goes off. Even going 10mph in low rpm? Once engine is up to temp it doesn't do it anymore. It seems to run fine otherwise. I do have 2, 700 CCA Napa batteries that are from 2011 which I plan on replacing next month with Motorcraft Maxx 850 CCA.
I have replaced the UVCH, CPS, Fresh Oil and put additives in my fuel. I have even disconnected my DP Tuner F5 and it still does it. I have AE with ford bundle and it seems like my HPOP seems to be working fine as well as buzz test and glow plug. Could it be an injector ( I have stage1 casserly from full force)? What about a sensor not working? It has always smoked since I have had it ( about 3 years) but the SES light issue has only been happening since my IDM was replaced and I had a mechanic work on it.
For the past few days I noticed my truck would be really rough to start and a lot of white smoke. but once it ran for a minute or less it would be fine. Today when I got home I popped the hood and was looking for anything and noticed my degas bottle had this weird fluid inside on top of the coolant? So I popped the cap off and smelt it and its fuel. Of course this would happen to me. Now I'm not going to lie I have beat on it a few times this week but nothing so so serious.
Could this be contributing to it? Could it be a head gasket? now being a diesel mechanic I doubt its a head gasket simply because there is no oil mixing. I am praying its nothing too major. Once I have the narrowed down to what it could be ill see if its something I could tackle or if the stealership has to do it, which I am not looking forward to. I'd rather be down a truck for a little bit and save a boat load of cash.
2006 blowing white smoke and sluggish until its driven for a few miles ..smells like fuel .. New head gaskets and the works started after 20 days over below freezing temps nights at 5 to -5 ....
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