3.0 duramax problem

[jnissen]

Where are you located? I’ve pulled my large dual axle enclosed trailer often and never had issues. I’m in Texas where it’s been 100+ heat. If your further west in the desert perhaps an under hood heat issue? We know the 3L generates a lot of heat under load.

I’d push hard on your dealer to check the fuse block connectors. An intermittent fail at elevated temp and load sounds plausible.

[ullose272]

Where are you located? I’ve pulled my large dual axle enclosed trailer often and never had issues. I’m in Texas where it’s been 100+ heat. If your further west in the desert perhaps an under hood heat issue? We know the 3L generates a lot of heat under load.

I’d push hard on your dealer to check the fuse block connectors. An intermittent fail at elevated temp and load sounds plausible.

Im in idaho, not as hot but pretty good grades. Im pretty convinced its in the harness that goes from ecm to engine.

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[ullose272]

I took it to the dealer today, some different codes but same general problem. Service manager says they are getting a regional rep and a field engineer involved.

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[Colossus]

Good.  That's a step in the right direction. 

[ullose272]

Update, i guess they are soldering a bunch of the terminals to the wires.

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[econometrics]

Man, what a saga. Sorry, OP. 
 

Now I can see why the YouTube fishing guy (with what seemed to be the same issue you’re having) got a buyback. 

[Sidewayz]

I’m in the market for a truck and these stories are deterring my purchase. I really want to get the diesel. Any other issues? Would you buy the 6.2 gas over this if given the option to do it over? 

[gr8almty1]

I’m in the market for a truck and these stories are deterring my purchase. I really want to get the diesel. Any other issues? Would you buy the 6.2 gas over this if given the option to do it over? 

I asked the same thing in a different post and the 3.0 still seems solid enough to go with.


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[gr8almty1]

I’m in the market for a truck and these stories are deterring my purchase. I really want to get the diesel. Any other issues? Would you buy the 6.2 gas over this if given the option to do it over? 

2020 1500 Diesel engine...any known problems before buying???
https://r.tapatalk.com/shareLink/topic?share_fid=33003&share_tid=242811&url=https://www.gm-trucks.com/forums/index.php?/topic/242811-2020-1500-Diesel-engine%2E%2E%2Eany-known-problems-before-buying%3F%3F%3F&share_type=t&link_source=app


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[Sidewayz]

21 minutes ago, gr8almty1 said:

 

I asked the same thing in a different post and the 3.0 still seems solid enough to go with.


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Did you make your purchase yet?  The rebates and stupid discounts make me apprehensive to trade in my Suburban for one. I just miss having a truck

[gr8almty1]

In progress. I want a CC std bed


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[BurnsMax]

Mine has been solid.  I did make sure before I bought it that diesel was relatively similar in price for gas.  Here I only pay .05 -.10 a gallon more for gas.  This new engine gets about double or better than my Ram did.  Only time will tell, but I am satisfied with my purchase.  The only thing I had to do was put in rear shocks and I will do the fronts as well.  The truck seemed way to unstable with bumps and rail road tracks, it seemed like the rear end was going to give way.

[ullose272]

I would buy the diesel again, i love the low end power and fuel mileage

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[ullose272]

The tech did a bunch of soldering and drove the truck on friday, still has issues. They are talking buy back, but inventory kinda sucks.

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[ullose272]

Sounds like an engineer is coming out the next few days.

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