No Smoke Powerstroke
- Tyler Bishop

- Apr 4, 2023
- 3 min read
Get up in the morning, go to fire up the 6.0; it cranks and cranks and cranks and still no go... preparing for the worst, you grab that can of ether and give it a sniff, with a knock and a grey smoke furry it springs to life, just don't shut it down!

There are several issues you could be experiencing here, less likely is you could have a weak FICM (fuel injection control module) your friends might even say its probably a fuel pump. More likely you have now experienced the dreaded High Pressure Oil Leak!
This is not the easiest issue to locate but with the right tools and a bit of know how the diagnostic should revile the issue at hand.
Depending on the generation of your engine you'll either have an ICP (Injector control pressure) sensor on the passenger valve cover, or it'll be at the rear of the HPOP (High pressure oil pump) cover.
You will need adaptors for the ICP and the IPR (Injector Pressure Regulator) with both

adaptors installed, you can now force air using a compressor into the high pressure oil system. Ensure your water separator is working as you don't want any contamination, now keep your ears sharp! Open the oil fill cap and the crank breather, unless you have already removed the valve covers. After a few minutes of the system being pressurized you will hear a hissing sound, The common leak areas are the Stand Pipes and the injector feed nozzles on the High Pressure Rails. If the hissing sound is coming from the rear then it'll be an issue with your HPOP. Keep in mind that if an injector spool valve is open then the hissing will come from the oil spill ports on the top of the injector, this can be mis-leading but the some knowledge of how the system works its easy to overcome. Using mirrors and a bore-scope you can generally see the external leaks without any part removal.

In the event there is no hissing and you've had the system pressurized for several minutes then you will need to have the IPR or ICP sensor inspected to see if they are operating as they should. However a pre-inspection scan will generally come up with IPR or ICP circuit codes if that is the case.
Now that you have identified your leak you can get to the fix! Order all OEM Moto craft seals, in our experience they last a lot longer then the competition. If your pump or injectors need replacing then Power Core and Moto Craft are the best option. Remember re-manufactured and Re-build does not guarantee all parts inside are new. Most new parts will not have a core charge as they do not need a core to re-build when they are selling new products, see manufactures policies
If your looking to have your high pressure leak fixed by a professional then give us a call at (587) 507-5007 or by checking us out on the web and leaving a request for quote at www.compexdiesel.ca
-This is not a guide for how to "Do it yourself"
-Compex Diesel Services LTD. always recommends you bring your vehicle to a professional for appropriate diagnosis and service.
-If you do attempt any DIY please insure you follow all safety measures when dealing with any Diesel Engine and/or lifting heavy objects.
-Compex Diesel Services LTD. does not recommend or endorse any unlicensed technician to perform the work detailed above, this BLOG post is designed to inform customers.



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