Okay this is my first diesel. Really my first new truck. I see people talking about a new flash or reflash. I am assuming that it is some kind of computer update or fix. Will my dealer let me know if I need to get or do I have to go ask them for it. Do they charge for? I know I sound stupid but would appreciate some info.

They do not charge for it. I had mine done, truck woke up. Runs a lot smother.

There's plenty of discussion on the forum about the reflash. LLY reflash poll is posting 85% positive results, 15% are not happy. We're trying to run their issues to ground to see what is causing their issues. :confused:

I had my LLY reflashed in early December with great results. Truck runs smoother, gets the power to the wheels better, and mpg's are up. Later. JJ :)

JJ,

Who did you use in Jacksonville?

Tx

My dealer and the mechanic didnt know any thing about it untill I took the codes off of this site to give to them. Tell them you have fuel knock and white smoke, or they wont do it. It made a big improvement in the porformance of my truck. Less noise, more trottle response. I love this truck:rolleyes:

Same with me.. 5 dealers later, one believed me even with the printout of PIP3129.

you may have the flash already if this is a brand new truck, but it doesn't hurt to find out. I have heard some of the 05's did not have the latest code.

here is PIP3129, just print it out and take it with you, but make sure you go in with the specific issues that are listed here. I think the latest is PIP3129B unless there is a newer one.

04 6.6 LLY Smoke , Fuel Knock , Surging and High Injector Balance Rates - kw white black idle surge rough noise accelerate P0300 P0301 P0302 P0303 P0304 P0305 P0306 P0307 P0308 miss misfire SES DTC #PIP3129 - (Sep 10, 2004)<O:p</O:p

04 6.6 LLY Smoke, Fuel Knock, Surging, and High Injector Balance Rates <O:p></O:p>

The following diagnosis might be helpful if the vehicle exhibits the symptom described in the PI.<O:p></O:p> (http://service.gm.com/servlets/BlobShtml?ShtmlFile=1549221&psdid=437&evc=sm#ss1-1549221)

Condition/Concern: (http://service.gm.com/servlets/BlobShtml?ShtmlFile=1549221&psdid=437&evc=sm#ss1-1549221)<O:p></O:p>

Customer concern may be a low speed surge (8 to 10 mph or near 1000 RPM), acceleration fuel knock noise at 1500 to 1800 RPM, rough idle, white smoke at idle, or high positive injector balance rates.<O:p></O:p> (http://service.gm.com/servlets/BlobShtml?ShtmlFile=1549221&psdid=437&evc=sm#ss2-1549221)

Recommendation/Instructions: (http://service.gm.com/servlets/BlobShtml?ShtmlFile=1549221&psdid=437&evc=sm#ss2-1549221)<O:p></O:p>

High positive injector balance rates (over +4.0 in park or +6.0 in drive) may be causing white smoke at idle or while driving. <O:p></O:p>
Document all injector cylinder balance rates at the beginning of the diagnosis. <O:p></O:p>
There is an updated calibration to address the white smoke, high positive balance rates, idle surge, and a fuel knock noise at or near 1500 to 1800 RPM. <O:p></O:p>
Install the updated calibration and evaluate the smoking, high injector balance rates, idle surge, and fuel knock noises. <O:p></O:p>
If there is still a mechanical concern with an injector, and balance rates are still over the SI specification of +4.0 in park or +6.0 in drive, replace only the effected injector. <O:p></O:p>
NOTE: Before any injector replacements a large fuel sample should be taken from the fuel filter and checked for contaminants or poor quality.<O:p></O:p>

<O:p></O:p>

just had mine done today. the service tech told me to check my injector balance he had to put a gage on the engine, is this true or should he have been able to see it on his tech II. But I did notice that I didn't see the white smoke when I take off from a stop.

The shop foreman at my dealer was able to show me the balance rates by just hooking up the Tech II.