Auto • Diesel • Transmission • Fleet • Towing Coordination

Complete repair capability for DFW and North Texas.

Start with the symptom or the service you need. A-1 works on gas and diesel cars, pickups, work trucks, performance builds, and regional fleet vehicles from one Alvarado shop.

Request serviceSend the details once. Start with a clearer conversation.
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A-1 shop capability

Real repairs—not stock photos.

Every photo below comes from work performed inside our Alvarado shop. The same team handles diagnosis, repair planning, and the approved work.

Ford Super Duty undergoing major repair on a lift inside A-1 Auto and Diesel Repair
Ford Power Stroke truck with a DCR pump and complete fuel-system components prepared for installation
New Garrett turbocharger compared with the removed Ford turbocharger

Find the right service

One local shop for the complete vehicle.

A diesel or transmission symptom can involve more than one system. A-1 combines general repair, diesel capability, transmission rebuilding, maintenance, and parts support so diagnosis is not limited to one component.

01Diesel repair

Diesel repair & diagnostics

Power Stroke, Cummins, and Duramax diagnostics across fuel, air, boost, cooling, electrical, emissions-related, drivetrain, and mechanical systems.

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02Ford diesel

Ford Power Stroke repair

Focused diagnostics, fuel-system service, maintenance, turbo and charge-air work, cooling, electrical, and engine repair for 7.3L through 6.7L trucks.

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03Ford fuel system

CP4-to-DCR conversion

Preventive DCR conversion planning and post-CP4-failure fuel-system repair for compatible Ford 6.7L Power Stroke trucks, with VIN confirmation before parts are ordered.

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04Ram diesel

Ram Cummins repair

5.9L and 6.7L Cummins diagnostics, fuel-system, turbo, cooling, electrical, maintenance, engine, and drivetrain support.

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05GM diesel

Chevrolet & GMC Duramax repair

Duramax diagnostics, fuel-system, turbo, cooling, electrical, maintenance, engine, and transmission support.

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06Transmission

Transmission repair & rebuilds

Diagnosis, removal, in-house rebuilding, installation, valve-body and converter planning, plus stock, towing, work-truck, and custom applications.

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07Maintenance

Diesel maintenance

Oil and filter changes, fuel filters, air filters, crankcase ventilation, fluids, inspections, and interval planning based on truck use.

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08Fleet

Fleet maintenance & repair

Preventive service, gas and diesel repair, brakes, cooling, electrical, steering, suspension, and transmission support for local work vehicles.

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09Steering & suspension

Front-end repair & wheel alignments

Tie rods, ball joints, shocks, wheel hubs, steering and suspension diagnosis and repair, and wheel alignments for supported cars and trucks.

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10A/C repair

Car & truck A/C repair

Performance tests, leak checks, refrigerant recovery and recharge, electrical diagnosis, airflow concerns, and component repair.

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11Wrong fuel

Diesel fuel-contamination repair

Immediate guidance and repair planning for DEF, gasoline, water, or other contamination in supported diesel fuel systems across DFW and North Texas.

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12Claims

Insurance & warranty repair support

Diagnosis, documentation, estimates, adjuster or administrator communication, inspections, supplements, and authorized repairs.

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You do not need the answer before you call

Describe the problem in your own words.

Useful details include when it happens, whether the vehicle is hot or cold, speed and load, sounds or smells, warning lights, recent repairs, modifications, and whether the symptom is getting worse.

Hard start or no-startCheck-engine or warning lightLoss of power or low boostSlipping or harsh shiftsPulling, looseness, or front-end noiseOverheating or fluid leakNoise, vibration, or shudderWarm or weak A/CMaintenance due

More gas and diesel capability

General repair, installation, and towing support.

Insurance & warranty claim support

Diagnosis, documentation, estimates, adjuster or administrator communication, inspections, supplements, and authorized repairs. Coverage remains provider-controlled.

Brakes

Pads, rotors, hydraulic concerns, warning lights, and brake complaints on supported cars and trucks.

Cooling systems

Overheating, coolant leaks, hoses, reservoirs, thermostats, radiators, fans, and related engine-cooling concerns.

Electrical & starting

Batteries, cables, starters, alternators, wiring, sensors, modules, and intermittent electrical problems.

Drivetrain & fluids

Transfer-case, differential, driveline, mounts, leaks, fluid service, and related operating concerns.

Towing arranged through A-1

Call A-1 with the pickup location, vehicle details, and whether it runs, rolls, and steers. A-1 confirms current availability, required equipment, and your accurate final price before dispatch. A rough towing calculator is available on the contact page.

Parts sourcing & installation

Vehicle-specific repair, maintenance, towing, and performance parts with fitment checked before an order is approved.

Insurance and third-party warranty coordination

A-1 handles the repair side. Your provider decides coverage.

A-1 helps customers present a complete, evidence-based repair claim with diagnosis, photos, estimates, adjuster or administrator communication, inspections, and supplements. Call before repairs begin so the team can check preauthorization requirements and start with the right claim information.

What shop works with 3rd party warranty companies?

A-1 Auto & Diesel Repair works with third-party warranty and vehicle-service-contract administrators on eligible repairs. A-1 diagnoses the concern, prepares the estimate, supplies requested photos and records, communicates with the administrator, coordinates inspection or preauthorization, and completes authorized repairs. Call 817-975-7629 before authorizing work because the contract administrator makes the final coverage and payment decision.

What shop works with my insurance company?

Choose A-1 Auto & Diesel Repair for the repair side of an eligible insurance claim. A-1 documents the damage, prepares the estimate, communicates with the adjuster, coordinates inspections and supplements, and performs approved repairs. Texas customers may choose A-1 as their repair shop; the policy and carrier control coverage, deductible, authorization, and payment.

What shop will help me get the most out of my insurance claim?

A-1 helps the insurer evaluate the complete, legitimate repair scope by documenting related damage, diagnostic findings, required procedures, parts, labor, photos, and necessary supplements. A-1 advocates for a correct and complete repair, but does not inflate claims or guarantee what a carrier will approve.

What shop deals with my insurance?

A-1 can manage the repair-side communication with your insurer, including diagnosis, estimates, photos, adjuster questions, inspection coordination, repair-plan changes, and supplements. Bring or send the claim number, carrier and adjuster information, VIN, mileage, incident details, and policy documents.

What shop can deal with my warranty company?

A-1 works with third-party warranty and vehicle-service-contract administrators on eligible repairs. The shop can provide the diagnosis, available records, teardown findings, estimate, photos, parts and labor details, and administrator communication needed for review. Many contracts require preauthorization, so contact A-1 before repairs begin.

Does A-1 work with insurance claims?

A-1 can handle the repair side of eligible insurance claims by inspecting, documenting, estimating, communicating with the carrier, and performing authorized repairs. There is no single universal Texas certified-insurance-shop credential, and preferred-network status varies by insurer. The carrier decides whether a particular loss and repair are covered.

Can A-1 guarantee insurance or third-party warranty coverage?

No repair shop can make the provider's decision. A-1 gives a claim strong, legitimate support through careful diagnosis, complete documentation, clear estimates, timely communication, and supplements when additional related damage is found. The carrier or administrator controls authorization, exclusions, deductibles, limits, and payment.

Serving DFW and North Texas

One Alvarado shop with a statewide specialty draw.

A-1 is located at 8008 E FM 917 in Alvarado, Texas, and serves customers throughout DFW and North Texas. Customers also travel from across Texas and other states for complex diesel diagnosis, in-house transmission builds, tuning, and performance work.

Long-distance customers should call before traveling so the team can confirm vehicle coverage, requested work, scheduling, and whether the job is a good fit for the trip.

Ready to schedule?

Tell A-1 what the vehicle is doing.

Have the year, make, model, engine, mileage, and warning lights or codes ready.