7.3 runs rough and white smoke (raw fuel smell) - Ford Powerstroke Diesel Forum
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post #1 of 21 Old 04-03-2013, 03:16 PM Thread Starter
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7.3 runs rough and white smoke (raw fuel smell)

Hi guys Im new to the forum , In need of some help

I have a 99 f-350 5 speed 4x4 7.3 With 230,000 It have been running rough and white Smoke ( smells like raw Unburned fuel) and Last Night When I got off the hwyway I push in the clutch and stall out , I restarted it and ran rough like before , But never stalled till last night ,

I have fuel in the coolant , Seen that this morning , So (cups) ?

And How can I till if I just need Injector "O" Rings or ALL new injectors ?
And can they be sent out to get cleaned cheaper ?
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post #2 of 21 Old 04-04-2013, 07:37 AM
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either way bud, with fuel in coolant, you'll need to remove injectors to get to the cups. RiffRaff has the cups along with the toll installer/remover on loan/rent. Then, with injectors out, lace them with new orings, which riffraff has also.

What year 99 you have?

99.5 x-cab 7.3l, 6spd, 161k miles.....
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post #3 of 21 Old 04-04-2013, 07:51 AM
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It's the cups. If it were just O rings you'd have fuel in the oil.

With that many miles on the injectors I'd spring for a new set. I believe rosewood diesel does budget friendly rebuilds.


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post #4 of 21 Old 04-04-2013, 01:40 PM Thread Starter
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6/98 , I dont know what Injectors are in it , and I drive it everyday so Its hard to take a cover off to check what injectors it has ..

Can you guy help me out and give me some web sites to buy this stuff from


and what do you thinking the chances are I can just put "o" rings in it and be ok . I mean I will buy injectors But I dont know What I have in there now ?


And What do you think is causing the stalling ? As soon as I push the clutch in riding down the road coming to a stop it stalls..

Last edited by 99f3505speed; 04-04-2013 at 05:23 PM.
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post #5 of 21 Old 04-04-2013, 05:07 PM
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Quote:
Originally Posted by 99f3505speed View Post
I have fuel in the coolant , Seen that this morning , So (cups) ?
?
THIS, my friend, will consist of removing the valve covers, injectors AND the cups, in order to be fixed, unfortunetly.

With your year truck, it called for, regular green or gold coolant. Now, with the injector cup replacement, using the new FORD sealant, you can run ELC, which then ,you'll never have to worry about SCA's balancing, again.

Riffraff Diesel: Motorcraft 7.3L Injector Cup Kit

http://www.riffraffdiesel.com/mm5/RE...eplacement.pdf

You'll want to remove as much oil from the hpop as possible, as well.

99.5 x-cab 7.3l, 6spd, 161k miles.....
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post #6 of 21 Old 04-04-2013, 05:24 PM Thread Starter
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where should I get the injectors from ? New or rebuilt ?

What what is this stalling thing about ?
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post #7 of 21 Old 04-05-2013, 07:11 PM Thread Starter
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Ok here's what I did . Changes the Oil and fuel filter add diesel Keel . Truck runs night and day But still has a little miss and lack of power, My buddy Is a ford tech , He pulled these codes p0475 , p1209 and p1282 and My ECT is reading -40c So He didnt know much about powerstokes , Im asking for everyones help on these codes
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post #8 of 21 Old 04-06-2013, 04:51 AM
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My ect is reading -40 as well. Needs a coolant temp sensor but there are 2 on these trucks. Not sure which one is gauge and which is PCM. And not to be a jerk but it doesn't matter how many fuel filters you put in or additive you put it, it needs cups that's the only way to fix your problem. The more you run it the worse it will get and could Damage other things. I'd get them done soon. I just did two sets in the last 2 weeks. With the tool from rosewood its not a terrible job to do


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post #9 of 21 Old 04-06-2013, 07:19 AM
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your ect reading is normal, if you have an auto trans.

99.5 x-cab 7.3l, 6spd, 161k miles.....
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post #10 of 21 Old 04-07-2013, 05:30 PM Thread Starter
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Ok update , Installed a new EBP sensor and ICP , truck stoped smoking and runs pretty good , I am going to install new cups and o rings this weekend , and see what happens ,

My truck is a 5 speed and is at -40 I have a sensor that I am going to istall ,

Something I found out today , When I took the oil cap off when it was running, it was puffing white smoke from the oil cap ,? Blown motor ? Runs to good for that > Any way Im going ti install cups, and o ring this coming weekend
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