16+ Hours Vs. 2 Hours - De-sludging the problematic Dodge Ram heater core. Nobody does it this way!

This is a very problematic job. I've developed a technique to get the heater core running nice and hot without removing half the trucks interior and the air conditioning system. With jobs I do over and over I create these "labor clusters" in my QuickBooks lists function. Super helpful when you need to write invoices for the same job over and over again. on the invoices. I'm going to paste the labor cluster it'll give you an idea of the strategy of the job.... Job #3 -Large deposit of sludge sits in bottom of heater core and can not be flushed out with traditional radiator flush and techniques -Heater core sits like way below the hot water inlet and outlet almost like a Christmas tree ornament. -Technician had to use a different technique to get sludge out of heater core -Isolate heater core inlet and outlet tubes from rest of vehicle cooling system -Install circulating water pump de-scaler in closed loop with heater core -Prepare a 5 gallon bucket with cleaning solution and water -Install electric water heater in 5 gallon bucket to bring cleaning solution up to boiling temperature -Submerge circulating pump in heated cleaning solution -Install in series with rest of circulating loop an air/water blast gun -Continuously circulate boiling cleaning solution between bucket and heater core for multiple hours -Every 15 minutes or so as the sludge on the bottom of the heater core heats up and begins to loosen, blast with air water gun to vomit out sludge -Repeat blasting process every 15 minuets or so, for a few hours, until no more sludge is evacuated from heater core -Install fresh water hose and rinse, heater core and entire loop of all cleaning solution -Disassemble loop and pack up kit

from Mobile Diesel Medic “Diesel Motors - Radiators” -Engines-Generators-Hydraulics https://www.youtube.com/watch?v=pwwq3HaUFgU

Crane Company Wants $3,000 for $100 worth of hardware - Forget About It

Leaking swivel joints are causing u-joint wash out. The crane company wants an astronomical amount of money for something that should cost way way less.

from Mobile Diesel Medic “Diesel Motors - Radiators” -Engines-Generators-Hydraulics https://www.youtube.com/watch?v=acMHw6Xld_8

Turning Wrenches Below Freezing

I'd rather turn wrenches below freezing than 100 degrees plus in the summer any day.

from Mobile Diesel Medic “Diesel Motors - Radiators” -Engines-Generators-Hydraulics https://www.youtube.com/shorts/JDPkxaOxV3Y

6.0 Sitting 6 Months, Refusing To Be Repaired - Keeps Blowing CAC Tubes - MobileDieselMedic.com

This truck sat for 6 months messing with all the heads of all the technicians that looked at this thing. Took me two days to find what you are seeing in four minutes but I got it. ✅ Subscribe To Our Channel For More Videos: https://www.youtube.com/@mobilediesel/?sub_confirmation=1 ✅ Important Links: 👉 Website: https://ift.tt/e9rbUKJ ✅ Stay Connected With Me: 👉 (X)Twitter: https://twitter.com/fatfix 👉 TikTok : https://ift.tt/F5SyAul 👉 Facebook: https://ift.tt/SrR9J4I 👉 Linkedin: https://ift.tt/4yljvNS 👉 Reddit: https://ift.tt/v9QnZuD 👉 Pinterest: https://ift.tt/6H8OcQp ✅ For Business Inquiries: 📩 Email: fatfix@gmail.com 📱 Call or Text: (919-335-4800) ============================== ✅ Other Videos You Might Be Interested In Watching: 👉 Caterpillar Excavator Part 2: Cluster Gauge Display 7Y-5500 Fault Codes Tutorial | Mobiledieselmedic https://www.youtube.com/watch?v=W5Jbz7oGSNw 👉 Caterpillar Excavator Part 3: Accessing 7Y-5500 Cluster Gauge Calibration | Mobiledieselmedic.com https://www.youtube.com/watch?v=jD7kXVAcybQ 👉 Caterpillar Excavator Part 4: Accessing 7Y-5500 Cluster Gauge Calibration | Mobiledieselmedic.com https://www.youtube.com/watch?v=vq0VrxSI-0k 👉 Acedeck Aries X1 (2023): Important Part Missing: Safety Concerns & Oversight | Mobiledieselmedic.com https://www.youtube.com/watch?v=as32TXbyCX0 ============================= ✅ About Mobile Diesel Medic: Mobile Diesel is a company specializing in field repair of larger diesel motors, high pressure fire suppression systems (fire pumpers), factory and field hydraulic systems, and finally industrial heat exchangers and radiators. We have a knack for solving the more difficult hard to repair jobs. Our reputation is to repair when most other companies just want to replace. With the successful track record of repairing and NOT replacing, comes a savings of around 50%-80%. We will set up a job site anywhere in the lower 48 states. Finally, we work in much of North Carolina and we love the hard jobs and the challenges. Give us a call and see for yourself. For Collaboration and Business inquiries, please use the contact information below: 📩 Email: fatfix@gmail.com 📱 Call or Text: (919-335-4800) 🔔 Subscribe to our channel for more videos: https://www.youtube.com/@mobilediesel/?sub_confirmation=1 ===================== ADD HASHTAGS Disclaimer: We do not accept any liability for any loss or damage which is incurred from you acting or not acting as a result of reading any of our publications. You acknowledge that you use the information we provide at your own risk. Do your own research. Copyright Disclaimer: Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use © Mobile Diesel Medic

from Mobile Diesel Medic “Diesel Motors - Radiators” -Engines-Generators-Hydraulics https://www.youtube.com/watch?v=qmbGIuiKjMs

Ford 6.0 -Was called in to solve a 6-month nightmare.

from Mobile Diesel Medic “Diesel Motors - Radiators” -Engines-Generators-Hydraulics https://www.youtube.com/shorts/WK_QeJowt7Y

January 14, 2026

from Mobile Diesel Medic “Diesel Motors - Radiators” -Engines-Generators-Hydraulics https://www.youtube.com/shorts/szkH5kecVI4

Who needs grease nipples?? Easily a million more miles, put it back together.

from Mobile Diesel Medic “Diesel Motors - Radiators” -Engines-Generators-Hydraulics https://www.youtube.com/shorts/UBcPZhsZihc

2015 Dodge 5500 - Steering Locking While Driving Down the Road

Customer complaining of steering locking up while driving down the road. checked everything out steering box power steering steering dampener and on and on everything past and I pulled these u joints even though they're soaked in grease they were still totally rusted and seized. eureka!

from Mobile Diesel Medic “Diesel Motors - Radiators” -Engines-Generators-Hydraulics https://www.youtube.com/shorts/TRI4FqezKVU