Send me your personal e-mail and I will send you the diagnostic chart for the P0404 for you 2003 CA LB7.
Send me your personal e-mail and I will send you the diagnostic chart for the P0404 for you 2003 CA LB7.
1998 Chevy k-2500 454 147,000 miles and climbing!
1993 Pontiac G/A Big Block 3.3 Liter 140,000 miles and still going too!
Also, keep in mind that the 2002-2004 LB7 EGR that was used in the CA trucks is different than the EGR used in the LLY version. The LB7 EGR is vacuum operated and has a vacuum pump on the passenger side of the engine. The LLY version is not vacuum operated and there is no vacuum pump.
'02 Chev 2500HD EC/SB 4x4 D/A
What did you come with SIGGY?
1998 Chevy k-2500 454 147,000 miles and climbing!
1993 Pontiac G/A Big Block 3.3 Liter 140,000 miles and still going too!
Thanks for the diagnostic chart! I had cleared the codes after reading them and they have not come up again, been almost 1K miles and all is good. I'm wondering if it was a fluke one-time event, or a preview of upcoming issues. This truck has been very solid and reliable so far, my fingers are crossed that things will remain so. 137,000+ happy miles, I keep telling myself I don't need to upgrade to a new truck. Over and over...
2003 Chev 2500HD/LT/CC/LB7-Duramax/Allison/H2wheels/Bilsteins/Green Keys/195K
I'm glad you like your truck!!
1998 Chevy k-2500 454 147,000 miles and climbing!
1993 Pontiac G/A Big Block 3.3 Liter 140,000 miles and still going too!
Siggy,
My EGR was replaced five monthe ago and the code came again last week. A mech in Oregon took it out and a water cooled pipe that conects to it and cleaned the pipe. It was vety cloged. Hope this helps.
Mike
2002 GMC, Pretty Dark Blue, 4x4 / 3500, ZF6, 115 gal spare tank and Rockets... (My Other One): Flying Fuel. I got three engines and a 52,000 gallon tank, how many you got?
humm egr block off plate .I have an 05 any info would be greatly appriceated. My e mail is olychuckchuck@hotmail.com
Siggy, hey man do You think You could share the chart with me also?
Vincechacon38@gmail.com
If you pop over to my web site you'll find my email. Drop me an email.
Kennedy Diesel-owner
More than just a salesman-I use and test the products that I sell on a daily basis!
Superflow Lie Detector in house
2002 Chev K2500HD D/A CC Long LT 11.77@ 124mph at 7700# fuel only-e.t. needs help
2005 Chev K3500SRW D/A CC Long LT(SOLD)
2007 Chev K2500 Classic EC Short LT (Sold)
2012 GMC K3500SRW D/A CC Long LTZ Happy Birthday to me! Built 1 working day after my birthday and delivered 7 days later.
2016 GMC K3500SRW D/A CC short LTZ
Custom tuning in house using EFI Live tuning software!
I have a 2003 2500HD with the LB7. I just replaced my vacuum pump due to failure. After the pump was replaced, and truck driven a little, the SES light came on. It came up with the P0404 code. I know it has something to do with the EGR but cant figure out how to diagnose the problem. I have read that it might not be the EGR itself.
The truck seems to run fine, no idle or performance issues. After the code was reset, less than 20 miles later the SES light came back, so did the P0404 code.
Any thoughts????
I’ve been having issues with my LB7 throwing ses codes at me. A buddy pulled the code up and tells me I need to clean my EGR, my question is does my 2003 lb7 have a cooler as well? I can’t find them any where. Any help would be very much appreciated. If there’s a better way please help