Diesel failures often cross mechanical, fuel, air, emissions and electrical systems. Wizard's uses an evidence-first diagnostic process for diesel trucks and vehicles, including Cummins, Duramax and Power Stroke platforms, before recommending a repair path.
Diesel failures often cross mechanical, fuel, air, emissions and electrical systems. Wizard's uses an evidence-first diagnostic process for diesel trucks and vehicles, including Cummins, Duramax and Power Stroke platforms, before recommending a repair path.
Service facts
What to know before you schedule
The useful facts should be easy to extract and easy to verify. These are the current service-level details represented by this page.
Platforms
Cummins, Duramax and Power Stroke service capability
Diagnostic focus
Fuel, air, electrical, emissions, cooling and mechanical systems evaluated as one interacting system
First-visit offer
Free oil change for qualifying first-time diesel customers, up to 12 quarts; confirm eligibility and exclusions when booking
Repair warranty
3 years / 36,000 miles on parts we provide and labor we perform
Shop model
Evidence, documentation, deference to expertise and verification
HRO in the bay
Why diesel diagnosis needs system thinking
01
Separate symptom from cause
Low power, smoke, hard starting or warning lights can share symptoms while having different root causes.
02
Use live evidence
Scan data, pressure/temperature readings, electrical testing and physical inspection are used to challenge the first theory.
03
Escalate complexity
When the signal points to a specialty system, the work defers to the strongest relevant expertise rather than forcing a simplified answer.
04
Confirm under operating conditions
Where practical, verification attempts to recreate the conditions that produced the concern.
Capabilities
Common reasons customers contact us
Cummins diagnostics and repair
Duramax diagnostics and repair
Power Stroke diagnostics and repair
Cooling-system diagnosis
Electrical and charging concerns
Fuel and air-system diagnosis
Diesel maintenance
EGR and emissions-related diagnostics
Customer advocacy
Informed. Respected. Protected.
A good repair experience is not defined by saying yes to everything. Our customer-experience standard is to explain the evidence, the limits of what is known, the urgency of the concern and the available paths so the customer can make an informed decision in their long-term interest.
01Inspect
02Measure & Test
03Explain
04Execute
05Verify
Frequently asked questions
Direct answers to common questions
Does Wizard's work on Cummins diesel trucks?
Yes. Cummins is one of the diesel platforms represented in the shop's service capability.
Does Wizard's service Duramax and Power Stroke engines?
Yes. The diesel service offering includes Duramax and Power Stroke diagnostics and repair.
Why can diesel diagnosis take time?
Modern diesel symptoms can involve fuel, airflow, emissions, electronics, temperature management or mechanical condition. Testing is used to separate those possibilities before parts are recommended.
What is the first-time diesel oil-change offer?
Qualifying first-time diesel customers may receive a free oil change up to 12 quarts. Confirm oil specification, filter, fees, eligibility and exclusions when booking.
Are qualifying diesel repairs covered by the Wizard's warranty?
Qualifying repairs can be covered by the 3-year/36,000-mile Wizard's repair warranty. Confirm the terms for the specific job.
Start with the concern, not a parts list.
Tell us what the vehicle or RV is doing. We will start building the mental map from there.
