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Thread: Anyone have the new 3.0 Duramax in a 1500 truck ?

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  1. #1
    Join Date
    Apr 2004
    Location
    Bar Nunn, WY
    Posts
    194

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    I had a 21 High Country 3.0l diesel until a month ago. The reason the tow rating was lower until the 22s came out was due to the engine cooling and the fact the DPF is under the hood and not under the truck like the 2500/3500s. The drive train was great but the truck was a POS. All the modern electronics was the issue. The BCM did a meltdown and caused the truck to be completely useless (no dash lights/no start/emergency brakes locked). That may have been the last GM I will ever own. Took almost a month to fix. The dealer had the new BCM the next day but couldn't get anything in the truck to work. A GM engineer had to come to the dealer and do a computer restart like is done in the factory to get it to work again.
    We moved from Colorado to Casper Wyoming last Jan/Feb. Towing a 20ft enclosed trailer (about 5000lbs loaded) with the truck I got between 20 and 23mpg depending on the wind. Empty on the freeway I could get 30+mpg.

    Jay
    2023 Tahoe 3.0l diesel
    2013 Harley Switchback
    2021 Ram 2500 6.7l (sold)
    2018 Chevy Traverse (sold)
    2021 Silverado 3.0l LM2 (sold)
    2019 GMC Sierra 6.2l (sold)
    2019 Colorado ZR2(sold)
    2017 2500HD CC D/A (sold)
    2015 1500 CC High Country 6.2l (sold)
    2010 Chev 2500HD CC D/A (sold)
    2013 Chev 2500HD CC D/A (sold)
    2006 Chev 3500 CC D/A (sold)
    2005 Harley Ultra Classic (sold)

  2. #2
    Join Date
    Sep 2001
    Location
    Ft. Wayne, In.
    Posts
    536

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    Thanks Jay,
    I appreciate your review. I have read of another fella that had issues also. Of course there are good reviews out there too.
    I can believe the modern electronics problems. If I only had my 82 back. A frame off restoration and an engine rebuild and it could be my last truck...... Who needs all those creature comforts?...... Well, they are kind of nice.....
    d
    Dave, N9LOV
    Member #242
    Dave's Diesels:
    Sold June, 07 '82 1/2 ton 4X4;340k miles
    '97 2 Dr Tahoe, Intercooled,
    Kennedy ECM, 4" Exhaust
    '02 GMC

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