excessive smoke from an 2004.5

[AEmery]

wasn't sure if i should post this here or in the 911 section. recently purchased a 2004. 5 with the HO motor. It appears to be somking more than normal. smokes white at idle sometimes and under light accel in overdrive. it does pour pretty heavy under hard accel. I've read a lot about lift pump failure and if that is the case, I'm looking at the Fass system. Also, I installed a used edge juice with attitude and the engine sounded like it was pinging and boost would not go over 20 psi. i immediatly took the programmer off. Guages are in my future but I want the truck running "right" before I start modding it. Any and all help is appreaciated!

 

[geusterman]

Not sure what that is... there was a white smoke TSB early on with this model (I had the flash done on mine) but was a start-up smoke... I can get a haze of smoke at night in headlights behind me on hard acceleration but that is normal. That is all from this guy. George

 

[R_Painter]

could be a bad injector or old fuel . . have you changed fuel filter??

 

[AEmery]

fuel filter was recently changed. at night was when i noticed it the most, but it's not a light haze. would an injector failure set a code? I do have a p0628 code stored but, maybe from the install/ un-install of the edge. Oo. ( my son wanted me to use this )

 

[KFranco]

Black smoke is too much fuel and not enough air. With that said I would check your airfilter and airbox. Make sure it's clean and free from any obstructions that could block your airflow.



I wouldn't think of buying gauges as a "mod" When I ran stock and had power problems with black smoke all kinds of ideas were tossed around. I purchased a set of boost and pyro gauges. I couldn't produce more than 10psi boost and egt's were too high for stock. The gauges were able to narrow that problem down to a boost leak. With that said seeing some smoke with the edge is normal with acceleration and shift changes. Probably not normal while at idle. Do you have the same amount of smoke when stock? Does it smoke at idle while stock? Is it possible that the truck has injectors prior to your purchase?

 

[BHolm]

Pretty hard to quantify too much smoke without seeing it in person. If it is cold out, you will see white smoke at initial start up in the morning like any vehicle. It should be condensation type smoke not thick white smelly smoke. I had an early '05 that did that until re-flashed. The same re-flash may be availible for your truck.

Juice with Attitude includes gauges right? Hook the whole thing up, use the gauges as suggested to help figure out the problem. If it would anly make 20 psi, you very well may have a boost leak, it should make 30 stock and close to 40 psi with the Edge turned up.

Under hard accleration it should smoke some, at least until the boost catches up. After that mostly a haze, it shouldn't pour black smoke for long.

Hook up the gauges, check boost, check all hoses/clamps that see pressure, check the air filter, swing by the dealer and report white smoke, see if the re-flash has been done. You probably do not want to show up at the dealer with the Edge installed though

Check the intercooler, you could have one with plastic ends, not metal. Sometimes those cracked and would cause a boost leak.

 

[RMaguire]

My stock '05 feels like it is hesitating at low rpm's... mostly while trying to get out of my subdivision. If I give a little throttle the problem seems to go away.



It almost feels like the transmission is trying to shift but won't. This is only at light throttle at about 20-25 mph.



Any ideas?



I just bought the truck 2 weeks ago.

 

[KFranco]

My stock '05 feels like it is hesitating at low rpm's... mostly while trying to get out of my subdivision. If I give a little throttle the problem seems to go away.



It almost feels like the transmission is trying to shift but won't. This is only at light throttle at about 20-25 mph.



Any ideas?



I just bought the truck 2 weeks ago.

You might want to try and start a new thread so you increase your chances of a response.



Questions I have for ya:

What rpm's (how low)

automatic or manual

 

[BillGotthelf]

White smoke at idle means the engine is getting to much fuel at low temps. You may have a bad injector and 9 out of 10 times it will not set any codes. A small amount of black smoke even from a stock motor is normal until boost catches up with fuel. You will notice smoke at night with headlights behind you as you accelerate more readily than during the day because the brightness during the day actually obscures some of these emissions.

 

[AEmery]

Thank you all for your responces! The smoke that I am concerned about is the white smoke that seems to come when under light accel. 1/4 to 1/2 throttle. how can i tell if i have aftermarket injectors. I'll check tonight for a boost leak. is it possible that my lify pump can't keep up? Thaks again

 

[KFranco]

Thank you all for your responces! The smoke that I am concerned about is the white smoke that seems to come when under light accel. 1/4 to 1/2 throttle. how can i tell if i have aftermarket injectors. I'll check tonight for a boost leak. is it possible that my lify pump can't keep up? Thaks again

I don't think you can tell unless you remove the injector. Anyhow, I think we understand your problem is white smoke and it's not just a small puff at start up. What BillGotthelf said is true too much fuel at low temps. However, when the engine warms up it should go away. If it doesn't then you probably have a mechanical failure of some sort. What's happening is raw unburnt fuel is passing directly to the exhaust system. In a way this fuel "vaporizes" out the tailpipe white in color. Causes can be incorrect fuel injection timing, bad fuel injector(s) and/or low cylinder compression.



You mentioned the problem is only at 1/4 to 1/2 throttle. Is the white smoke only brief or is it continous under this throttle? Also, you're 100% it's white smoke. I'm not trying to be a smarty but maybe someone traveling behind you to verify it's color would help. Sometimes a light hazy blue smoke can look like white from inside the cab looking in the rearview.



It's hard to say it you're having a lift pump problem without a gauge. Any shop or the dealer will charge you $$$ to test the LP for almost the price that you could purchase one. Even if a shop does a "bench" test there will be no better indicator than when viewing your fuel pressure while under load. WOT in neutral while not moving is not the same as when in gear under load.



Hang in there. With a little more info you will get this thing licked

 

[AEmery]

You mentioned the problem is only at 1/4 to 1/2 throttle. Is the white smoke only brief or is it continous under this throttle? Also, you're 100% it's white smoke. I'm not trying to be a smarty but maybe someone traveling behind you to verify it's color would help. Sometimes a light hazy blue smoke can look like white from inside the cab looking in the rearview.



thank you for your support!

the smoke seems to stay continous. also at idle, when warmed up, the truck smells like unburned or even partially burned. it smells like its coming out of the exhaust and possibly the blow-by tube on the side of the engine.

who has the procedure and/or fittings for checking or tapping in a fuel pressure guage?

I don't want this tread to go on forever, I just want to figure out my new truck and why I can't run that dang edge. #@$%!

thanks again!

 

[BHolm]

I think the very first thing you need to do in order to get this figured out is drop the notion that there is a lift pump problem. If anything, you are getting too much fuel. The second gen trucks had the lift pump issues, these trucks do not. If you want to buy a FASS system, go ahead, but it isn't going to cure your problem. You really do not need to upgrade the fuel system until you add about 120+ hp to the truck.



So, the more I read, the more I suspect that you have a leaking injector. That is about how my '05 behaved, whitish smoke, fuel smell in the exhaust. Sounds like an issue for the dealer or a GOOD independant diesel shop.

 

[jcarey]

You may just have an issue of some carbon buildup. Our 2004. 5 had the white smoke on startup in colder temps. There was an old thread I started concerning the problem.



The suggestion I tried first was to add a $6 bottle of Diesel Fuel Catalyst from Redline:



Redline: Buy Online



It worked for us. Still use it regularly. Our problem is we don't tow, some very light hauling occasionally. These engines need to work hard or they carbon up.



Try that first. It's the cheapest solution.

 

[BillGotthelf]

There is another exellant injector cleaner called SeaFoam and can be had at almost any auto parts store. Follow the instruction and use what they say. You won't believe how your idle wil clear up. It will not fix a bad injector.

 

[AEmery]

I think the very first thing you need to do in order to get this figured out is drop the notion that there is a lift pump problem. If anything, you are getting too much fuel. The second gen trucks had the lift pump issues, these trucks do not. If you want to buy a FASS system, go ahead, but it isn't going to cure your problem. You really do not need to upgrade the fuel system until you add about 120+ hp to the truck.



So, the more I read, the more I suspect that you have a leaking injector. That is about how my '05 behaved, whitish smoke, fuel smell in the exhaust. Sounds like an issue for the dealer or a GOOD independant diesel shop.

Good call. I've set an appointment at the dealer:{ for tomorrow. I'll keep updating as to what is happening. also, I hooked my solus up to my truck today and at full throttle i saw 33 psi of boost, but the fuel pressure regulator readings seemed a bit off. no matter the load, the percentage stayed between 26 and 33. over fueling may be the problem. one more tidbit, i performed an injector kill procedure and it seemed that #2 and #4 weren't contributing very much.