0c cold start. Anyone else get a bit of haze/smoke on cold starts till engine hits full temp?

 

That's what mine looks like when it's not cold outside.

 

Do you use Archoil ar9100?

 

Can you detect anything "distinctive" in the smell?

That "haze" can be any one of several things (depending on EGR status) - injectors, high EGR flow, coolant.

 

Hard to tell between the kerosene and Hot Shots additive, but I'm sure I'm just overreacting as per usual lol. All my numbers are good and runs just fine.

 

When is the last time you pulled the MAF sensor and cleaned it (or at least inspected it)?

Also, I don't recall if you are still "stock" on the air filter or not.

 

Every single time. About time to order another gallon. Man that stuff is expensive.

 

Can you list all of those possibilities for us, Mark?

 

I mentioned a few -
The injectors can be getting old - poor spray pattern or even leaking a bit.
The EGR valve can be sticking - if that system is still functional, I advise somewhat routine cleanings.
We all know about EGR cooler leaks - small leaks can cause the slight haze.
Fouling on the MAF sensor can throw off the PCM's "understanding" of the air flow.
IAT and IAT1 temperatures can play a role, so they need to be accurate.
Even the amount of back pressure can play a role in the combustion controls (EBP value).
Poor fuel quality is another possibility, but with routine cetane boosting additives I would think that is not the issue.

I like to routinely verify ALL temperature sensors against each other when first starting the engine.
I do that with the pressure sensors also, but I don't see those impacting start-up haze all that much.

I have never paid much attention to EGR systems with the throttle plate though, so not my cup of tea.

 

There are several TSB's that talk about smoke, but typically they include loss of power also.

2005 Trucks, Crank/No Start, Hard Start, Runs Runs Rough at Idle:
Pickups and vans built before 4-15-05 and Excursions built between 1-10 and 4-15-05 may exhibit hard or no start conditions with a low ICP signal, or a rough idle with a high ICP signal. This may be due to a damaged high pressure oil pump and/or IPR valve. The IPR valve should be removed (mounted on HPOP cover under the turbo) and inspected for a damaged inlet screen or debris on over half the screen. If either condition is present, the IPR (5C3Z-9C968-CA) and the high pressure oil pump (5C3Z-9A543-AA) should be replaced, along with the oil and oil filter. If neither condition is present, continue with normal diagnosis. If a rough idle is present after replacing the above parts, injector damage may have occurred.
TSB 50-12-3.

Cold Temperature Lack of Power, Poor Economy, Hard Start, Excessive White Smoke, or Coking (carboning) of Turbo, EGR System or EBP:
This could be due to gelling of the fuel, formation of ice in the fuel tanks or lines or poor fuel quality. If diagnosis finds no cause for the above symptoms, try using a fuel conditioner, such as Stanadyne Performance Formula or equivalent, such as Motorcraft PM-22-A or -B (cetane boost), or PM-23-A or -B (anti-gel/cetane boost), that will improve the cetane level and lower the gel point of the fuel. Do not use any product containing alcohol. If the conditions improve with the additive, then find another fuel source or continue to treat the fuel. Broadcast Message 1309, 1464, 5113, 6875; SSM #17406.

Rough/Surging Idle, Excessive Smoke, Lacks Power, Poor Throttle Response:
This may be accompanied by DTC P2263. Inspect all intercooler hoses and pipes and exhaust system before the turbo for leaks. Ensure the oil level is correct there are no oil leaks and all electrical connectors are secure. Check the ICP sensor as in the following bulletin. If no problems are found, make no attempt to repair the condition. Engineering is investigating. Broadcast Message 0225, 0471. SSM 16488.

I also had a saved "note":
Blue-White smoke: Caused by insufficient fuel or from oil consumption. Normal when engine is cold or idling for extended periods.
Excessive smoke could be caused by air in the fuel, contaminated fuel, loose or plugged injectors, worn or leaking injector o-rings, thermostat stuck open, oil consumption, or plugged crankcase depression regulator valve. Also PCM inputs such as MAP or even ICP sensors.

 

Yeah I'll be doing some checking of things just to be absolutely sure I don't have any issues when out on winter camping trips.

 

You are in a pretty good position since you see no power/engine issues with it.

 

The things on that list that may apply to my situation is maybe another Holder's injector going bad, the deal with my EGR pids not populating (whatever is causing that), or back pressure. Since I've had this truck, back pressure has been reduced in three phases: CAT delete, 4" cat back, and BD exhaust manifolds. Do you think the back pressure could be what's throwing the P0404?

 

Broadcast Message 5468 talks about a P0404 coming from a higher than expected EBP value, so I find it hard to think that an open exhaust system would cause a P0404.
..
IAT and MAF sensors can cause it though.

 

If memory serves last time I checked baro/ebp/map they were within .2-.5 of eachother and I've cleaned the map sensor with map cleaner a few times now so pretty sure all that stuff is g2g.