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Dick At those high ambient temps the R134 AC systems can tend to be a little tough to keep super cold air at low RPM You may well need to "Top...

My electronic 6.5L in my 2 door Tahoe averages 16-17 mpg. Best tank ever was 19.5 mpg. I have family born and raised here in SW Missouri. They...

Thanks, Robyn and DD. The old gal was a delight, for the whole trip to Phoenix and back. Had a bit of sinking "pit of the stomach", when we got...

Those numbers are right in the ball park with Suburbans we have had. Best we ever saw with our 1994 6.5 (DS4 PUMP) was 18 mpg

With all of the "city" driving you did, it seems about right to me. d

Thanks Casey! It was such an amazing time and such an amazing story - that needs to be told... again... There's a new generation of GM diesel...

Thanks for the stroll down memory lane, Jim! I have fond memories of all the excitement around the debut of the Duramax and of the 2001 Rendezvous...

2-1/2 minute video... Make your OBS/Squarebody Duramax swap easy! We offer professionally produced Motor Mounts that allow for an LB7, LLY, LBZ,...

I adjusted timing and did TDCO relearn, and that cleared things up. Seems fine now. Only thing left is hard warm start - once it's started everything...

It doesn't really fit with the rest of your symptoms, but this behavior is one failure mode of the PMD. It surges because the PMD isn't controlling...

It's been awhile - I haven't been able to access the forums for some reason. I got the engine back in, started it, and then turned it off after...

OBS Duramax Diesel Swaps & Road Trip - Part II - 57 minutes - This time we discuss some of the history of western Montana as well as the 21 year...

OBS Duramax Diesel Swaps & Road Trip - Part II - This time we discuss some of the history of western Montana as well as the 21 year history of Lil...