Mobile Roadside Diagnostics & Repairs — Get Back on the Road Fast
If your Check Engine Light is on or you failed Clean Truck Check, we provide on-site roadside diagnostics and repairs for heavy-duty diesel and fleet vehicles. Our mobile team comes to you to identify the issue, perform qualifying repairs when possible, and help you get back into compliance.
Book Online: (Book Service)
Service Area: Los Angeles, Bakersfield, Fontana Riverside
Hours: (24/7 or Your Hours)
Primary Services
- Check Engine Light diagnostics (OBD fault code scan + live data review)
- Roadside repair for common engine/emissions-related issues
- Clean Truck Check failed repairs support (pre-test readiness + repair guidance)
- Mobile troubleshooting for derate / reduced power conditions
Trust / Value Proposition
Why Fleets Choose Our Mobile Repair Team
- Roadside response to minimize downtime and towing costs
- Diagnostic-first approach: we confirm root cause before replacing parts
- Compliance-focused repairs to address Clean Truck Check failures
- Fleet-friendly service: invoices, reports, and repeat maintenance support
- We service owner-operators, fleets, dispatch yards, and job sites
Services Section
1) Check Engine Light Diagnostics (Mobile)
When the CEL comes on, it can indicate anything from a sensor issue to emissions system faults. We perform:
- OBD diagnostic scan and fault code interpretation
- Freeze-frame data review
- Live data checks (as applicable)
- Connector, wiring, and basic component verification (visual + functional checks)
Common issues we see
- NOx sensor faults
- DPF differential pressure sensor issues
- Boost/charge air leaks
- EGR-related faults
- DEF/aftertreatment warnings
- Intermittent sensor wiring problems
2) Roadside Repairs for Failed Clean Truck Check
Failing a Clean Truck Check often means you need targeted repairs and a proper readiness check before re-testing. Depending on the fault and access to parts, we can help with:
- Sensor replacement (when applicable and available)
- Electrical/connector repair and harness troubleshooting
- Air leak identification (boost / intake related)
- Clearing codes after repairs and verifying readiness indicators
- Guidance on next steps if the repair requires a shop-level procedure
Goal: correct the failure-related fault and ensure the vehicle is in the best position to pass a re-test.
3) “Failed Test” Support — Pre-Test Readiness & Re-Test Prep
Before you spend time and money on another attempt, we can:
- Review codes and system status
- Check if monitors/readiness are set (as applicable)
- Identify conditions that typically trigger re-fail
- Provide a plan to correct the root cause
4) Reduced Power / Derate Troubleshooting
If your truck is in derate or reduced power, we diagnose the cause and help you take the fastest path to resolution—roadside if feasible, shop referral if required.
Who We Serve
Owner-Operators, Fleets, and Dispatch Operations
We routinely support:
- Heavy-duty diesel trucks (fleet + independent)
- Yard and dispatch locations
- Job sites and roadside calls
- Local and regional operators needing fast compliance support
What to Expect (Process)
Our Roadside Repair Process
- Call/Text with your location and symptoms
- We arrive and run diagnostics
- We explain the likely cause and options
- If repair is feasible roadside, we proceed
- We verify improvements, clear codes when appropriate, and provide documentation
Call to Action
Need Roadside Diagnostics Now?
If you have a check engine light, failed Clean Truck Check, or are dealing with derate, contact us for mobile diagnostics and repair support.
Call / Text: (Your Phone Number)
Service Area: (Your Cities / Counties)
Email: (Your Email)
Request Service: (Button Link to Contact Form)
FAQ (Optional but recommended for SEO)
Do you repair trucks roadside for Clean Truck Check failures?
We provide roadside diagnostics and certain repairs (especially sensor, connector, and basic fault-related issues) when feasible. Some repairs may require shop-level work depending on the fault and vehicle condition.
Can you clear my check engine light?
We can clear codes after diagnosing and addressing the root cause where possible. Clearing codes without fixing the problem often results in the light returning and may affect readiness.
How fast can you respond?
Response time depends on location, traffic, and call volume. Contact us with your exact location for the fastest ETA estimate.
Roadside Truck Repair Booking
Book a service call and pay securely by card (Square).