EQ Auto & Diesel

Your vehicle's engine and transmission are its most critical components. At EQ Auto & Diesel, our certified mechanics have decades of combined experience diagnosing and repairing all types of engine and transmission issues. Whether you drive a domestic truck, a European sedan, or an import SUV, we have the expertise to get you back on the road.

We start every repair with a comprehensive computer diagnostic to pinpoint the problem accurately. From there, we explain the issue in plain language and provide a transparent, written estimate. Common engine repairs we handle include overheating, oil leaks, timing belt replacement, and check engine light diagnostics. For transmissions, we address slipping gears, fluid leaks, rough shifting, and complete rebuilds.

As a proud Jasper installer, we have access to premium remanufactured engines and transmissions with industry-leading warranties. This allows us to offer cost-effective solutions without compromising on quality. For fleet owners in Missoula, we provide efficient fleet maintenance to minimize downtime. Trust EQ Auto & Diesel for dependable engine and transmission service that lasts.

Diesel engines require specialized knowledge and equipment. EQ Auto & Diesel is your go-to diesel repair shop in Missoula, serving everything from pickup trucks to commercial fleet vehicles. Our technicians are trained on all major diesel systems, including Duramax, Power Stroke, and Cummins.

We handle common diesel issues like injector failure, turbocharger problems, EGR system faults, and fuel system contamination. Our advanced diagnostic tools allow us to quickly identify faults in high-pressure common rail systems and emissions controls (DPF, DEF, SCR). We also perform diesel preventive maintenance, including fuel filter changes, oil changes, and glow plug replacement.

Whether you need a minor repair or a major overhaul, our shop is equipped with the latest diesel technology. We also work closely with fleet managers in Missoula to keep diesel trucks operating efficiently, reducing costly roadside breakdowns. Call us today to schedule your diesel service and experience the difference that specialized care makes.

Don't sweat it when your car's AC fails or shiver through another cold morning. EQ Auto & Diesel offers complete automotive air conditioning and heating system repair for all makes and models. Our certified technicians can diagnose and fix any climate control issue, ensuring you stay comfortable year-round in Missoula.

We start with a full system inspection using refrigerant leak detectors and manifold gauges. Common AC repairs we perform include recharging low refrigerant, replacing compressors, fixing condenser leaks, and repairing blower motors. For heating, we troubleshoot heater cores, thermostats, and coolant flow issues that leave you without warm air.

We also offer preventive AC maintenance, such as system sanitization to eliminate odors and annual performance checks. All repairs come with our satisfaction guarantee. Plus, because we value your time, most AC services can be completed the same day. Get your vehicle's climate control working like new again with help from Missoula's trusted auto repair experts.

Modern vehicles are packed with complex electronics. When your check engine light comes on or electrical gremlins appear, you need a shop with advanced diagnostic capabilities. EQ Auto & Diesel uses state-of-the-art scan tools to read and interpret trouble codes from your car's computer, quickly isolating the root cause.

We resolve a wide range of electrical issues: battery and alternator failure, starter problems, faulty sensors (O2, MAF, crankshaft), wiring shorts, and lighting system malfunctions. Our process is systematic: we verify the code, perform component testing, and only replace parts that are truly defective. We never guess or recommend unnecessary repairs.

For check engine lights, we provide clear explanations of what the code means, how urgent the repair is, and what your options are. Often, the fix is simple, like a loose gas cap or a failed oxygen sensor. But if the issue is more serious, we will guide you through the repair with transparent pricing. Drive with confidence again by letting our Missoula electrical experts handle your vehicle.