The REP issue isn't the engine, it's a select few year models of silverado. I just fixed an 03 for my friend who had already replaced the entire throttle body, pedal sensor, checked grounds, etc. It was the TAC module connection near the firewall.

You had an engine failure on a high mileage engine you haven't owned since new. It could be literally anything. The old 2 valve 4.6 modular Ford is about the only V8 built in the last 20 years that has an average life span as high as a 5.3L or 6.0L iron LS. They make about 60-100hp less eat coil packs like candy and drink oil but they last.

This post was edited by FMX_89 on Jan 3 2017 11:48am

The only LS trucks I've ever put some serious time behind the wheel in were plow vehicles.

So they took a beating but were maintained meticulously.
Most of the fleet is over 170k

That's a great example of why mileage isn't a good indicator of engine wear or life expectancy. I like what cummins does and it comes from their industrial and heavy equipment background. They rate their engine's life expectancy in fuel consumption. Overhaul is due after xxx,xxx Liters of fuel consumption. They don't care how fast you use that fuel, that's when it's due. In a Dodge truck if you double the power and use that fuel 1.5x as fast you will end up needing a rebuild around 75% of the mileage of a stock one. It accounts for high engine load situations like towing, plowing, etc and low load empty highway driving.

This post was edited by FMX_89 on Jan 3 2017 12:35pm

This is honestly a great standard and should be adopted by every manufacturer.

Or is it not done because they expect you to not maintain your vehicle properly and want you to buy a brand new one before you should have to?

I have not replaced this yet, but I replaced everything else you said and then some. I know it isn't an engine issue, but it pisses me off that it never did it with my old engine ever, not one time. Now the new motor was good for about 15k and started doing it sporadically.the fucked up thing is now, when it does it, I pull over , shut it off, unplug the gas pedal sensor and plug it back in and it works every time. My truck has other electrical issues too, not just that...lol I have a 2013,2011,2006,a 2001 and a 1987 car in my driveway and the 87 is the one I trust the most... Also my truck has engine hours as well as mileage on the odometer as an option.

This post was edited by SheriffCool on Jan 3 2017 12:52pm

Most gas motors aren't as linear with fuel consumption and wear down as the diesels are.

With that being said, The 6.7L cummins starts straying away from that linear line as well compared to the OTR / Offroad motors they make. Still much closer than a gas motor though.

You have to remember, even the smaller diesels (cummins, powerstroke, and duramax) are built much heavier than the gas motors. There are guys out there running 3000 ft lbs of torque on a stock crankshaft.

Fun fact for you. The stock crankshaft in the 5.9L cummins is identical to the stationary powerplants used in the 30's and is built to hold 1000HP at the crank.

Cummins really does a great job with over engineering their motors. Unfortunately, this is becoming less and less true as the HP/TQ race continues between the big 3. Motor's are being built cheaper, HP/TQ is increasing, Internal pressures and temperatures are skyrocketing Compared to the Lb7, 12/24V and 7.3L

What's Dodge putting in the trucks now that their contract with Cummins is up?
Are they still allowed to use Cummins, they're just not the only ones now?
Or are they developing their own in-house diesel?

The contract has never been "up" only renewed.

Nissan and Toyota were never included in the original contract and don't fall under Heavy Duty pickups. They are still classified as a half ton, hence them being able to use the power plant.

That's what I've heard and read anyways. I highly doubt they will do anything towards making their own powerplant unless they fall into a ton of issues with the cummins. If they did, I would imagine it would be another Fiat motor.

Ohhh okay that pieces alot together then. I don't care enough about Dodge to do legitimate research, so I just hear things.


I still want to put a Cummins in a Bronco
My uncle was working on the swap when I was a kid before he passed away.

He never got very far due to his health, but I would still like to recreate his build and give it to my cousins.

I just know nothing about diesels and am way too preoccupied making sure my businesses have the correct resources and people to stay afloat. As they're all under 5 years old and that's considered the "make or break" time.

I'm still young, one day I'll get that build started.

Just swap in a 12V.

It's a 1 wire motor so it's pretty strait forward.