Ford 7.3L Power Stroke (1999-2003) :: Won't Start - Bad Injectors - Coolant In The Oil?
Dec 26, 2015
So we begin w/ another saga for the 7.3l Excursion......
A few months ago it started running like crap, real crap and blowing white smoke like crazy. Well I knew this from a previous episode and I had a bad or multiple bad injectors. I tried to trouble shoot which one it was and maybe just replace the one or two....but no it was worse than that. So Life was really busy it kinda got shoved aside until now.
I pulled all the injectors and had them rebuilt locally ..nice. They ended up being with mech for a couple of weeks because he went out of town...no problem. Well this entire time my rig was untouched and when I got them back #7 was full of water.....great, bad injector cup. #7 was the only one, the rest were dry. So I drained the radiator and the oil and left it overnight to completely drain and installed the new injector cup in #7. Next day I refilled via both heads because the valve covers were off, 4 gallons of oil and a new oil filter. Cleared the cylinders via the glow plugs and commenced to trying to get her started. Nada......just cranks, killed the batteries, recharged over night and left the box on them and still nada....but the oil was still very milky at this point.
So tonight I pulled all the injectors back out and drained the oil again, still a lot of water. This time I sucked out the HPOP reservoir and got a more milky water/oil out and I'm leaving everything open all night.
In the am I plan to check my overflow water level in the hopes it remains at the same level...if so I will reinstall all 8 injectors and refill the motor w/ 4 gallons of fresh oil and try again.
Oh, while I was attempting get her started I put my buddies Snapon scan tool on it and I got the p1271-p1278 codes w/ the buzz test. (low side to high side open circuit between idm and injector) So I found the pin test with everything connected at the idm pigtail and everything tested good. So I'm back to my not so fresh oil anymore is the culprit to it not starting.
Am I missing something here?
Also....another fun filled fact is that I seem to have a fuel leak somewhere at the rear passenger side. Every time my fuel bowl fills up, if I shut the key off it will drain down. Sometimes I can see fuel dripping quite vigorously onto my starter but I can not see where it is coming from. I have while it was dripping ran my hand along the head and the fuel lines and can not find where it is coming from. Any thoughts as to where in the hell this fuel could be leaking from?
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Someone just told me I need to put additive in coolant so the injectors don't rust. I've never heard of this.
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So I got all 8 injectors upgraded and excited when I get them back I put them all in in kind of a rush. And in that rush I left the cylinders full of excess oil. So obviously when I tried to start it hydro locked. Angry at myself. I kept trying to crank hoping it would fire and just shoot that oil out. Nope, so I went back to taking all the glow plugs out and firing it all back out. Put it all back together then tried to fire her up. Took a minute but she started and I let it run for a while. Hit the gas a few times and then it died. Couldn't get it started again. It would just crank, I checked the icp and ipr and the icp did not build above 35 psi and the ipr was at 98.04% so I just figured the o rings blew out when it hydro locked.
So I took it all back apart put new o rings on, took my time and put it back together right double checking everything. Got it all back together and went to start it, it would just crank around 160-170 rpms, battery voltage at 10.6 icp built up to 140 but now it won't build past 40. Ipr still goes to 98.04. The engine ran just fine prior to injector change, I put a new upgraded hpop prior to injector change, new ipr, icp, cps. Everything checks out, but it will not build oil pressure while crank I've killed a set of batteries then went all out and spent 350 at napa for some optima red tops. I did notice the cylinder 7 injector is the AE injector. It suppose to be in cylinder 8, idk if that's affect the oil pressure building up?
But as far as I know, I'm not building oil pressure. So idk if the hydro lock could have ruined something to keep it from building oil pressure?
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I just replaced my cups because of bad leak. well replaced all cups and injector from a rolled truck the truck ran when pulled. well installed went to start and have tried for 2 days on and off still not start did buzz test and passed , checked oil reserve and was full. When I first tried to start it acted like it was hydrolocked and then hit it again and been turning fine
YouTube ....
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My 2002 F450 7.3 won't start unless the heater is plugged in for 2-3 hours+ regardless of the weather. Today I did a cylinder contribution test and at first cylinder 2 got code P0266 (Injector Circuit Contribution / Balance Fault) and cylinder 7 got code P0281 (Injector Circuit Contribution / Balance Fault). I drove it 10-15 miles and did another test. Only Cylinder 2 got code P0266. No error on cylinder 7. I've used RevX with some success before, so I'm tempted to try it again see if it clears up the error on 2. My question though can injectors be an explanation for my hard start situation? (I've already replaced EGR, ECP, Fuel Filter, CPS and glow plugs seem to be fine also).
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My 2001 7.3 was smoking excessively and I rebuilt the turbo and the center cartridge was at fault for that. I'm still having some of the problems I was having before with a lot of smoke at cold start (I have to hold the accelerator down while I start it and it takes about 10 seconds to start) even when I hold it I have to keep it held for about 5-10 seconds before the RPMs get to where they should be. And it smokes like crazy.
Then after about 3 minutes warming up, or 30 seconds of me holding it at 3500 rpm, the idle smooths out and it only smokes a little. Then once I start driving it doesn't smoke a lot unless I go hammer down then it puffs some white smoke. I took the oil cap off and it isn't huge amounts of blow by cap just rattles off. Can ford buzz test and see if I only have 1 or 2 bad injectors? Could this be anything other than injectors? It has a ts6 on it with 24xxxx miles with factory injectors.
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Just replaced all hpop orings. Injectors loud after start up at idle. Guessing air in lines. How long do I need to drive before all air out of lines and everything back to normal?
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Replaced o-rings, injector cups, glow plugs and UVCH with all motorcraft parts 2 years ago and the ICP, IPR and resealed the HPOP last year. I use rotella 15W-40 oil. It has been hard to start when it is cold and runs rough with little power until warm for a few seasons now when it is cold outside. There are no fault codes or issues otherwise with the mostly stock truck. A buzz test when the engine is cold only #6 sounds strong and #8 isn't quite as bad as the others but the others are hardly audible.
Cause:
1) Can 6 to 7 injectors really go bad in 165k miles? If it is injectors I believe the Alliant look to be the way to go with type ADs?
2) Since it is like flipping a switch and the number of injectors effected is it possibly the 0.1% of the time it is the IDM when there is a miss and no SES. From my searching and swampdiesel if there is a miss and no SES it is 99.9% it is not the IDM or harness since it actively checks continuity.
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So I have a 2002 7.3 Excursion and I think it is low on power. ICP is falling on its face when on a 60 or 80 HP tune. I have some boost leaks at the plenums and will work on that but that shouldn't cause my ICP to tank at full throttle. Following are some numbers I pulled with WOT runs up a 6% grade.
16PSI BOOST
EXHAUST PRESSURE 40
ICP 1900
80%IPRDC
this is with the 60 or 80HP tune on my DP-tuner. If I ease into the throttle I get
2700 ICP with
45%IPRDC
but if I stomp on the throttle it stumbles and ICP tanks.
Running the stock tune I can maintain
2700ICP at
40-45%IPRDC
Is this my HPOP being weak, or worn out injectors, to much of a tune or a combo of all three?
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This is a 1999 with 200k on it. It has a really bad hpop so valley is full of oil. Haven't removed the HPOP to inspect the non serviceable plug or the hpop gasket. doing that this week. This truck I just bought and it has aftermarket injectors so dont know the miles in injectors. once the oil leak is resolved I can then give the injectors the once over to make sure theyre okay. Question is how much of a stream of oil should I expect to see as the engine runs?
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Are there more parts that i would have to get when putting in new injectors in my 2000 f250?
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What causes oil coming out of the oil spouts on the injectors? I pulled my VC to re torque my injectors down and I noticed 2 of mine are now leaking oil out the spouts(when warming the engine). Note I did not say the base of the injector.
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I just bought a 99 F350 with 240k miles on it and got it for a deal because it needed injectors. Ive done the same job to my 97 OBS powerstroke. The injectors were already pulled so I had them sent for rebuild, the problem is I cant tell which injector goes where. is there a trick to figuring out where each injector goes when I put it back together?
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I paid for brand new injectors and when i took them out today they all had dings and small gouges in the plates,is this normal?they are 180/100 cc
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Have a pretty good running (I think), 2000 7.3 with 151K that has always been pretty noisy. Lots of clatter. I amjust wondering if there's an easy way to tell if I may have injector issues starting to come up.
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I changed my injectors and glow plugs on passenger side. I tried to start the engine and it wont crank (turn over). I tried to turn over by hand by turning alternator bolt counter clockwise, turns a little bit and then get very difficult. Is this hydro lock? I stuck a suction tube down injector holes and made it to the piston not much oil came out, I think the truck was a little low on oil before I started the project. The starter wont turn the engine over. I even turned the engine over by hand many times before I put glow plugs in to evacuate the cylinders. I don't know what to do?
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I noticed about 1 year ago I had diesel in my coolant but wasn't sure.. took it to a Ford Guy about 45 minute's away.. He seems to know his stuff but when he tested the coolant the results said less than 2% diesel.. But he did find an injector issue and swapped it out..
Forward to present.. there is diesel in my coolant now , since the level is rising to almost overflow and I believe this has been doing on for quite some time as I have that smell you get in the cab..
BTW - All injector cups have been done about 3 Years ago.. On another note , I get white smoke on start up especially if the truck has sat for a day or 2.. What can cause diesel in the coolant.. I did a complete coolant flush this summer and was super **** about getting all the old coolant and gunk out.. Ended up with only clear water coming out the degas
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I recently did the following work:
New Injectors
New T500 Hpop
New IPR
New ICP Sensor
New UVCH/Glowplugs
New starter
Been cranking about 15-30 seconds each time about a dozen times now. I've pulled the icp and the hp crossover and have oil flowing at each.
ICP builds to about 240 psi and at a 98% duty cycle....so I assume there's still some air in the system. I"m not getting any sense that the engine is trying to hit. Do i just keep cranking?
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I just replaced all 8 injectors in my 01 F550 with remans from FFD. I have noticed a constant knock at idle but truck runs great. Blowby has no pressure behind it, truck does not smoke. Does this sound like a problem unrelated to an injector?
It did not make this noise before replacing the injectors
[URL] .....
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So I replaced all the rings on my injectors . After putting them back in turned the engine over 5-7 times by hand with the glow plugs out. Then I turned it over with them out as well with the valve covers off. After than I installed everything back in. Now is my problem. I've turned it over 5 times and no luck. Not even on turn over. The oil light keeps coming on?? The indicator doesn't move up at all. It will go up and come down ? Is something wrong with the hpop? Should I keep cranking? Gotta to charge the batteries now..
2001 f250 7.3
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I have a 2001 7.3 with 243k. I think the injectors are shot but other people including a local mechanic say it's not the injectors. What the truck does is smoke white. Sometimes little puffs when accelerating. Sometimes clouds that make the people behind you drop back a 100 feet. I have a ts6 on the truck and that alone with the 243k miles is enough to think its bad injectors. It smoke white. The exhaust is moist to the touch with soot built up like crazy. It doesn't really smell sweet and it's not really blue at all. It's getting horrible mpg. And lacks power. I don't have a high enough psi gauge to test compression. All arrows pointing to injectors?
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