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  1. #1

    Default 08 silverado 2500HD with high miles, "service 4 wheel drive system"

    Hello all!
    I'm joining the site today as my 08 2500HD has over 100,000 miles, and I intend on running it for another 200K without the safety net of a warranty (prayer said here) and need a place to get good information outside of paying for service fees. I am still giving all my money to ally (GMAC), so I'm extremely wary of going to a dealer to be fleeced for more.
    So, as the warranty ran out and I turned 105K miles I got this message "service 4 wheel drive system" I have seen a couple of indicators making me think a relay or solenoid has failed, the first is that when I turned the key to the run position I used to hear a loud electrical "clunk" before gauges and radios came on, that's now absent. Second, I have scoured the fuse panels and don't find any bad ones.
    I have a code reader which is no help in this case, and have traced wires and grounds looking for the obvious. Anyone have an idea??

  2. #2
    Legend
    Caddiac's Avatar
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    Welcome aboard! You question will get more attention in the Technical forums. I would recommend buying the Helms manuals which are factory authorized manuals for your truck. There are diagnostic procedures that will help you identify the problem. There are code readers, code scanners and various levels of capability within those two groups. You might try one of the auto parts chain stores. I am told they will scan it for nothing. Depending on what they have they might be able to read and clear the code. If it does not come back you might be lucky that it was a fluke. You can use the code to help diagnose the problem if you can track down a manual.
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  3. #3

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    I looked into the helm website and will order manuals, pricey but probably worth it considering that I intend on keeping this truck a while. I will re-post this issue on the tech forums as I get used to this site, thanks for the advice!

  4. #4
    Master Mechanic Burden33's Avatar
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    welcome to the club


    Fabtech/Banks Ram Air |Fuel Off Road/ 315/70/17 duratracs |Hyper tech / Spencershids |
    Color Matched Bowtie |15% Tint on Front Windows|20% Tint on Back Windows




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    "Black rims are as cool as a boner at a swim meet"

  5. #5

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    Thanks Burden33, good looking silverado there

  6. #6
    Legend Bigbomber's Avatar
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    Welcome to the club!
    [/SIGPIC]2009 Chevy Silverado LT 1500 EXT CAB 4X4 Vortec 4.8L SFI,K&N air filter,Weathertech Floor Liners ,Weathertech Stone/Bug Deflector, Line X Spray On Bedliner, TruXport Rollup Tonneau Cover, Molded Mudguards, Viper 5701 LE 2 way Security Alarm/Remote Starter, Xm Satelite Radio,BILSTEIN 5100 rear shocks,BILSTEIN 5100 front levelling shocks,READYLIFT 2" rear lift blocks,Goodyear Wrangler Territorys -265/70R 17"

  7. #7
    Master Mechanic Burden33's Avatar
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    Default

    Thanks now lets see some pics of your silverado


    Fabtech/Banks Ram Air |Fuel Off Road/ 315/70/17 duratracs |Hyper tech / Spencershids |
    Color Matched Bowtie |15% Tint on Front Windows|20% Tint on Back Windows




    Chevy Ridin' High
    "Black rims are as cool as a boner at a swim meet"

  8. #8
    Sr. Apprentice TRANNY PRO's Avatar
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    Welcome to the club from Canada. I will check a little & see if I can come up with some info. Ken

  9. #9

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    Welcome to the G M T C !


    2010 Z/71 Colorado C/C
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    ===============
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