the_jeepeo
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That might have helped considerably as it probably had him down in 5th or 6th gear with all that weight and RPMs too high. I'm about to add tons and 40s to mine but don't plan on towing a trailer. Hope I don't have those issues. The DEF issue can be planned for. There is no 2200 mile trail that you ever stuck on.I wonder if he would have had the overheating issues if he had regeared? Anywho, we still love ours!
How would regearing reduce temps let alon reduce revs?That might have helped considerably as it probably had him down in 5th or 6th gear with all that weight and RPMs too high. I'm about to add tons and 40s to mine but don't plan on towing a trailer. Hope I don't have those issues. The DEF issue can be planned for. There is no 2200 mile trail that you ever stuck on.
It's a V.M. Motori diesel that's been in production a while. And they've been making diesels for a long time.That diesel should have been a CUMMINS. We all know it. A Fiat diesel is a piece of crap. And add in all the extra smog restrictors and it just makes it worse.
Every YouTube mechanic video on that engine is very clear about how it has to be babied.
They did us a disservice. It could have been a Cummins. Maybe one day we will get a Cummins.
Cummins.
Yep, and it was a joint venture with GM. The baby Duramax in the Colorado was also from VM Motori.It's a V.M. Motori diesel that's been in production a while. And they've been making diesels for a long time.
Just because Fiat bought them out doesn't make it a Fiat.
I know I'm going to do a bad job of explaining this so hopefully someone can help me out here. Increasing tire size without changing gearing moves the torque points that the factory programs in for stock tire sizes. These are ballpark and not exact number but a stock diesel might be turning 1728 RPMs at 70 mph. A Jeep on 37s would be turning 1538 RPMs. But as the load increases that low RPM is going to lug the engine and make it downshift to 7th gear which jumps RPMs to 1971 RPMs to maintain that speed. But now assume you have an extra 2500 lbs behind you. Then it might further shift down to 6th gear which puts the RPMs at 2404 or even 5th gear which jumps the RPMs to 3149. That's going to increase the demand on the engine and increase the temps.How would regearing reduce temps let alon reduce revs?