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Complete Auto Repair & Fleet Services in Houston, TX

At Northwest Auto & Diesel, we handle everything from routine maintenance to complex diagnostics — for personal vehicles, work trucks, and commercial fleets. Whether you’re dealing with our certified technicians are ready to get you back on the road.

Scheduled car inspection

General Auto Repair

From engine noise to suspension issues, we troubleshoot and fix whatever your car needs — with quick turnaround and no guesswork.

Fleet Maintenance

We partner with businesses to keep their vehicles running smoothly, offering service plans, priority repairs, and record tracking.

Diesel Repair

Our techs understand diesel engines inside and out. We handle performance issues, hard starts, and regular maintenance.

Brake services

Squeaky brakes, worn pads, or soft pedals? We inspect and repair your entire braking system to keep you safe on the road.

Engine diagnostics

We quickly identify check engine lights, drivability issues, and performance loss using up-to-date scan tools.

Transmission services

Slipping, delayed shifts, or leaks? We service both automatic and manual transmissions with expert care.

Electrical repair

From batteries and alternators to wiring and lights, we resolve electrical issues that affect your vehicle’s reliability.

Oil and maintenance

We handle oil changes, fluid checks, filters, and inspections — helping you avoid bigger problems down the road.

Common questions

Answers about our services and process

Yes — we service gas, diesel, domestic, and import vehicles of all sizes.
You can call us during business hours or use our online request form anytime.
For fleet clients, yes. We can track service intervals and send updates as needed.
We use advanced scan tools and equipment to accurately diagnose check engine lights and system faults.
If we have availability, we’ll get you in same-day. It’s always best to call ahead to confirm.