SERVICES
We specialize in Duramax and GM diesel diagnostics, repair, and performance upgrades. Start with diagnostics so we can build a plan that makes sense.
Diagnostics
- Check engine light & drivability issues
- No-start / hard-start / intermittent problems
- Boost, fuel pressure, and sensor data review
- Cooling system and overheating diagnostics
- Electrical and charging system issues
- We don’t guess. We test, confirm, and then fix.
Duramax Repair & Reliability
- Cooling system repairs & upgrades
- Turbo issues (leaks, boost control, piping)
- Fuel system concerns (air leaks, supply issues, hard starts)
- Gaskets, seals, oil leaks
- General repair & troubleshooting
Performance Upgrades
- Intake & intercooler piping upgrades
- Turbo hardware installs
- Lift pump installs / fuel supply support (Ask us about fuel cooling!)
- Exhaust components & fitment work
- Monitoring gauges / clean under-hood routing
- Built for reliability first.
GM Gas (LS/LT) – GEN III, IV, V
- Diagnostics & drivability issues
- Cooling system, gaskets, leaks
- Intake/exhaust installs & cleanup work
- Cam/valvetrain support installs
- Fuel system / sensors / misfires
- General repair & reliability upgrades
- Tuning and Fuel Efficiency Improvement
Audio Installs
- Head units / CarPlay upgrades
- Speakers & amp installs
- Subwoofers & enclosures
- DSP tuning
- Sound deadening (doors, floors, cab)
- Clean wiring, proper fusing, and serviceable routing
Maintenance
- Oil & filter service
- Fuel filter service
- Cooling system service
- Belt / pulley / basic under-hood checks
- Pre-trip / towing checkover
How It Works
- Call/text and tell us what it’s doing
- We schedule diagnostics (start here)
- You get a clear plan + options
- We repair/upgrade it clean and right
No Guessing – Start with Diagnostics
Call or text and we will get you on the schedule.
KAV Diesel Performance 