Engine hours and miles ? - Chevy and GMC Duramax Diesel Forum
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post #1 of 12 (permalink) Old 04-14-2019, 05:27 PM Thread Starter
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Engine hours and miles ?

What all do your trucks have? Just bought an 06 lbz. 1680 hours , 138k Miles. Seems a bit odd to me that avg mph that would come out to be 87mph

2006 Chevy Silverado 4x4 2500hd LBZ - 139k miles
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post #2 of 12 (permalink) Old 04-14-2019, 05:57 PM
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That's not right figured mine & it was 34 mph 128K miles.

04 GMC LB7 2500 SAC 45 injectors DSP5 EFI live from LDS, ported air inlet. 4" MBRP droning exhaust.
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post #3 of 12 (permalink) Old 04-14-2019, 06:32 PM
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Boy that's crazy. If it did any in-town driving at all it would have to spend a lot of time over 100 MPH to average out that high. Even an average life speed of 50 MPH would be amazing (and would need only 84K miles).

Your miles are about right for a 12 year old truck, but hours are about 60% of what they should be. You've either lost hours or gained miles.

Several usual suspects that would NOT do this:
1. Oversized tires would make miles go down and the avg MPH go up.
2. Likewise running the speedometer back would make MPH go up not down.
2. Odometer hasn't rolled over 1 million and started over. that would be 677 mph for these hours (assuming the odometer goes up to 1M before resetting??)


Some possibilities:
A. perhaps the part of the instrument panel/computer that measures engine hours has been swapped out with one from an later model truck so that the hours don't belong to your truck (although I would think both the hours and the miles would reflect that of the pirated truck).
B. Perhaps an electrical problem PREVENTED power going to the hour meter for a good part of it's life? I think you are missing 800-1000 hours


What an intriguing problem. I'm putting in a call to Sculley and Mulduer.

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post #4 of 12 (permalink) Old 04-14-2019, 06:38 PM
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Just researched on the site and see a couple of strings where the answer is that the hour meter resets itself "sometimes" when the batteries are changed. that would explain your low hours. (and may I say....Good Grief!).

Can anyone confirm that battery change out will reset the hour meter?

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post #5 of 12 (permalink) Old 04-14-2019, 06:51 PM Thread Starter
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Carfax appears to match up with the miles . I bought it off the 2nd owner . He bought it off the original owner a year before I bought it off him and put 200 miles on it . I believe this as well , becUse it was covered in dust and registration ran out on him

2006 Chevy Silverado 4x4 2500hd LBZ - 139k miles
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post #6 of 12 (permalink) Old 04-14-2019, 07:27 PM
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My 05 hours reset recently on it's own even with good batteries.

2005 Silverado 2500, Crew Cab Short Bed. 122,000 miles
MODS: AFE intake, LBZ mouth piece, MBRP cat- less exhaust.
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post #7 of 12 (permalink) Old 04-15-2019, 05:44 AM
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Mine mas reset a few times on it's own but I'm pretty sure you can reset it like the oil life too.

Right now I have 180k on the truck and a little over 200hrs.

FLY ARMY

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post #8 of 12 (permalink) Old 04-15-2019, 07:22 AM
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Original owner- mine has also pretty much averaged 33-34 mph. Currently 400k miles and 11,7xx hrs.

2002 Chevy 2500HD Crew - Original owner - 400,000 miles so far. All stock with the exception of a lift pump and Donaldson filter
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post #9 of 12 (permalink) Old 04-15-2019, 07:55 AM
 
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my 07 reset itself randomly twice in the 10 years I owned it. New truck has 1,000 hours with 30k miles.
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post #10 of 12 (permalink) Old 04-15-2019, 08:01 AM Thread Starter
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Quote:
Originally Posted by long-time-dmax View Post
Original owner- mine has also pretty much averaged 33-34 mph. Currently 400k miles and 11,7xx hrs.
400k miles , I sure hope mine lives to see that mile stone lol

2006 Chevy Silverado 4x4 2500hd LBZ - 139k miles
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