Dates Wednesday, July 19 - Thursday, July 20
Time 6:30 p.m. - 10:00 p.m. each evening
Place Ashmore Inn & Suites
4019 South Loop 289
Lubbock, TX 79423  Map →
(806) 785-0060
Instructor Todd Muni
Contact Keena Martin - (800) 233-3182 Ext. 222
Download Enrollment Form  NOTE: Complete enrollment form and fax to (858) 486-8530.


Diesel engines are very simple – just compress some air and fuel and you get combustion. However, with the advent of common rail fuel pressurization and delivery systems, diagnosis and repair became a complicated and time-consuming game. Add variable vane turbochargers, feedback EGR systems, and exhaust aftertreatment systems like Diesel Particulate Filters, Selective Catalyst Reduction, and Diesel Exhaust Fluid injection, and it’s hard to know where to start. System, code, and system diagnosis covered in this seminar includes:

• Finding elusive internal fuel leaks
• Great vacuum-side fuel system tests
• Common mechanical issues
• Modifications & retrofits that make sense
• Tips for getting DPFs to regenerate
• Help for stuck DEF messages and codes
• New pressurized fuel return
• Simplified no-start & hard-start diagnostics
• Variable Vane Turbo issues & diagnosis

Other published Duramax repair information is inconsistent, and many of the flow charts run you in circles performing tests that would actually take days to complete. In contrast, our approach looks for high-level indicators to make a better possible-cause list and then offers multiple simple tests to trim that list as quickly as possible without taking too much apart.

Duramax coverage includes special tools, workarounds, unused Scan Tool functions, and other great shortcuts for ruling out time-consuming tests. From a simple high-level pass to system-specific tips, this seminar covers the entire diagnostic process. We have included dozens of real-world examples to prove that these strategies will find the root cause of your code or symptom in the shortest amount of time.