injector problems? or something else, videos included

webb06

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this is a customers truck that we have worked on a few different times.

a little background info:
The first time the truck came in it was towed from Florida back home to Missouri because they were at the beach and the truck stalled out and wouldnt start. A dealer in Florida told them it needed an engine to the tone of $16,000. So the customer said no thanks and had it towed back home. He brought it to us and we hooked up the IDS and figured out the DPF was completely plugged up. Also checked the oil...it was WAY overfull. We drained the oil and drained out 24 quarts...of oil and diesel dilution. Called the customer and asked when the last time he had the oil changed..he stated right before they left for Florida and said the Walmart sticker is on the windshield. Well it just so happens the oil was 11,000 miles overdue for a change. So the oil had atleast 15,000 miles on it and was full of diesel. A few lifters had collapsed to we put in some straight 40w oil and got them pumped back up after running the truck for a little while. Dumped that oil and filled with 5w40 synthetic. Did dpf and egr deletes and added a Livewire programmer. Seemed to run okay when he left with it.

Brought the truck back the second time because after the truck sat overnight and he started it up in the morning to warm it up and after it idling for roughly 2 minutes he got this...

https://www.youtube.com/watch?v=wkaA7OyPqDg

So we ran a powerbalance on it and cylinder #8 was hanging wide open so we replaced that injector, reprogrammed pcm and updated the livewire just to make sure all the electronics were in order. Truck ran fine and didnt smoke after a cold startup when he left with it.

Brings it back this time with a busted up high pressure turbo. The bearings were gone and the shaft was broken. heres a video of the turbo...
https://www.youtube.com/watch?v=AzNIEhRTGeQ

we replaced the high and low pressure turbo because the low pressure had shaft play. now after getting all of that done the truck runs fine. but still after letting it sit outside overnight and starting in the morning we still get the crazy smoking in the first video. almost like another injector is hanging wide open. only does it on a cold start up. if you start it, let it do its smoking thing, shut it off for 5 seconds and restart it wont do it for the rest of the day. still smokes like it does in the video but nothing like when it hangs open


long post but does anybody have a clue whats going on? will run another power balance tomorrow to check if another injector is hanging open.
 

cory151

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15k between oil changes always cost more in the long run. Is is possible that its still burning diesel out of the exhaust after the hung injector? I know when my 7.3 shattered an injector tip it had to run for a while before it burned off all the exhaust.

Hows the coolant looking?
 

webb06

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It's been another 11k since we replaced the injector. Coolant level is fine and hasn't moved.
 

Dzchey21

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You need to check the power balance when it's cold. Sounds to me like it's got another bad injector.

What does the smoke.smell.like? Fuel? Oil?

I will sag tho with.that much dilution and the turbo bearings already failing I would say the main and rod bearings don't look great either
 

webb06

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Little update. On a cod start the truck will idle for roughly 2-3 minutes and start to bring up rpms on its own. If you tap the brake to bring the rpm a back down it goes into the crazy smoking mode. During that time while watching the power balance cylinders 7,3,4,5 are all hung wide open at the +40 position and all other cylinders are showing -20 to -40.

Any ideas now? Contacted Ford hotline and they said to check for fuel contamination
 

Dzchey21

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When it does that crazy smoke thing the truck should log codes for cylinder contribuition, or even misfire, any of that going on?
 

webb06

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No check engine light. I'll check for codes in the morning to make sure. Its got a livewire in it for tuning
 

webb06

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Checked fuel bowl this morning. Found metallic debris at the bottom. Also cylinder # 8 contribution and misfire codes
 
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