Ok so gas trucks have a feature to hold the gas pedal to the floor and you can turn over the motor, no start. Rumor has it this doesn't work on diesel. This is called clear flood mode in gas vehicles. My use would be to pre lube motor after the extended storage time. My truck has been in storage for 6 months. Is the easiest way to do this by jumping the starter? Is there a fuse to pull to deactivate the injectors or fuel pump? Or does the accelerator to the floor give you a no start? I know this is overkill but I do this on my stored corvette.

 

I'd crank it up and go.

 

short of installing a pre-lube oil pump..there is no way of pre-lubing the 6.7

 

You probably do more damage during an oil change than you will on a 6 month hibernation

 

If OP absolutely positively wants to pre oil, then very slowly bar the engine over a few times.

It wont do a thing for engine longevity, but the exercise will help with OP longevity.

 

Thanks for the reply guys... Dave the engine guy and fear scrolling on the 6.7ps has me more aware of spun main bearings but I digress. I have just started it for the last three years out of storage (without issue) and wondered if there was a way to pre lube easily, especially with the length of the pickup tube to oil pump on the powerstroke.

 

Bar the engine over by hand four full rotations.

Pop the ecm fuses and short the starter, to crank the engine.

Spin the oil pump.

Crank the engine with the key, key off before it fires. Repeat 3 times.

Remove an oil plug, pump oil in.

 

do the same thing that engine builders do before first start.....plenty of youtube videos on different ways

 

Mine can set for 3 months at a time while I travel. I just start it up. By the time I’ve buckled in the oil pressure is fine. I’m just off idle getting out of the neighborhood and then it’s business as usual with the throttle. I’m not worried about it.

 

the click is the upfitter switch for the oil prelube pump.....the pump pressureizes the oil system so that when the engine starts...its always showing instant oil pressure

 

3 years...??? I would be more concerned about fuel condition...

 

I don’t think he stored it for 3 years, but rather after the last three winter storage events he just started it without thinking about it. I don’t think he has anything to worry about now.

 

Let's take these one at a time. First I'd love to see you "BAR" over this engine, not only is it very hard but all but impossible to get on the crank bolt, not to mention you might over tighten it while doing so. Next, why would you pop the fuse and "SHORT" the starter ? If you "POP" the fuse all you need to do is use the key, or start button. Next how do you "SPIN" the oil pump ? Next, crank the key and key off before it fires. When you turn the key to start momentarily, it cranks all be it's self until it starts or times out, and you can't turn the key off fast enough before these engines start. They don't crank very long at all ! Next, "REMOVE OIL PLUG" pump oil in. WTH oil plug are you removing that you can pump oil in ? All rubbish. All my stuff that goes into storage for Winter including my 6.7 Power Stroke gets started at idle and run when bringing out of storage. Never had any issues with premature wear that effected longevity, no spun bearings, and they have all lived long service lives to this day.

 

Pick any one of those techniques that you think will work. If key on, key off, to roll the engine over, is all it needs to get oil flowing, so be it.

Ive used each of those techniques on various stored engines in the past 5 years. Sorry you cant figure out the details.

 

Several years ago I recall there was a hydraulic accumulator with a solenoid valve system that would automatically pre-lube diesel truck engines at startup. It was ridiculously simple in operation. The engine oil pump pressure would recharge the accumulator for the next cold start. An anti drain back valve in the oil filter reduced back flow to the oil pan. It connected at the same location as the guage sender unit using a tee fitting.

Pre-heated oil flows faster so warming the engine oil using the engine block heater would allow the engine oil to flow faster. Standby generators at hospitals keep the coolant and oil at operating temperature using the available electric power. Fire trucks do the same.