Episode
Why Your Diesel Tows Like Garbage (And How To Fix It)
- Podcast
- Power Driven Podcast
- Published
- Apr 7, 2026
- Duration seconds
- 3448
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Summary
Every diesel guy has been there. The truck feels great empty, pulls hard, and you love it right up until you hook a trailer to it. Todd, Will, and Myer dig into exactly why that happens and what you can actually do about it. The conversation starts with a real story about building a 12 valve for power without thinking about what it would have to do. Big pump, big single turbo, five speed, and a trailer to tow. The result was exactly what you would expect from a setup built for the strip and not the highway. It towed, but it was miserable, and that experience sets up everything else in the episode. From there the guys get into tuning strategy for trucks that need to work. Pedal mapping and throttle input are a bigger deal than most people think, especially when your transmission is mechanically activated and does not know your engine is making twice the power it was designed around. If your transmission thinks you are at light throttle while your engine is at full pull, you are going to have a bad time. Getting the tune and the transmission working together is step one. Turbo selection comes up as one of the biggest places guys go wrong when building a tow truck. Oversized turbos that are great for making peak power numbers are often terrible for towing because they surge, they come on hard, and they kill drive manners under load. Compressor wheel clearances also factor into efficiency and reliability in ways most people do not think about. The right turbo for towing is not the biggest one you can bolt on. Fuel system choices matter too. Massive injectors and multi-pump setups introduce complexity and reliability concerns that become a real problem when you are stranded on the side of the road a long way from home. For a dedicated tow truck, simple and reliable beats fl…