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2910 NE Sandy Blvd, Portland ORMon–Fri: 7AM–6PM · Sat: 8AM–2PMMon–Fri: 7AM–6PM(503) 555-0182

PRECISION DIAGNOSTICS & EXPERT REPAIR

We Find What Others Miss

Advanced diagnostic technology paired with experienced technicians. Your vehicle's problems don't stand a chance.

A technician taps a diagnostic tablet resting on a car's engine cover
  • Engine Diagnostics
  • Brake Repair
  • Oil Changes
  • A/C Service
  • Electrical Systems
  • Suspension & Alignment
  • Transmission
  • Exhaust & Emissions
  • State Inspections
  • Fleet Maintenance

OUR EXPERTISE

Specialized Auto Repair Services

From routine maintenance to complex diagnostics, our team delivers precision work on all makes and models.

Engine Diagnostics & Repair

Advanced OBD-II and manufacturer-specific diagnostic tools pinpoint issues fast. From sensor replacements to complete engine rebuilds.

A mechanic's hands fill a coolant reservoir in the engine bay of an orange car

Brake Service & Safety

Pads, rotors, calipers, and ABS repair. Every brake job includes a road test and quality check for your family's safety.

A drilled and slotted brake disc on a car hub with the wheel removed

Oil Change & Preventive Maintenance

Conventional, synthetic blend, or full synthetic with OEM-spec filters. Multi-point inspection included with every service.

A mechanic in glasses leans over the engine of a car with the hood up

Heating & Air Conditioning

A/C recharge, compressor replacement, heater core repair, and cabin air filtration — stay comfortable year-round.

A technician types on a laptop wired to a car's diagnostic port, the steering wheel wrapped in plastic

Electrical & Battery

We diagnose and repair alternators, starters, wiring harnesses, parasitic drains, and battery issues with precision equipment.

A single flare-nut wrench on a white background

Suspension & Steering

Shocks, struts, alignment, tie rods, and ball joints. We restore smooth handling and eliminate pulling or vibration.

A mechanic lies under a vintage car in a black-and-white garage scene
A mechanic's hands fill a coolant reservoir in the engine bay of an orange car

WHY CHOOSE US

The Crankcase Difference

We go beyond basic repairs to deliver an experience built on transparency, expertise, and respect for your time.

  • Transparent Pricing

    Detailed written estimates before any work begins. No hidden fees, ever.

  • Same-Day Service

    Most routine repairs and maintenance completed the same day you drop off.

  • Competitive Rates

    Dealership quality at independent shop prices. We match written estimates.

  • Quality Parts Only

    We use OEM and name-brand parts — never cheap aftermarket that fails early.

  • We Stand Behind Our Work

    If something isn't right after a repair, bring it back. We'll take care of it.

  • We Call Before Extra Work

    No surprises on your bill. We always call for approval before doing anything beyond the estimate.

A smiling mechanic in a cap takes cash from a customer in a plaid shirt in front of a truck

Check Engine Light On? Don't Wait.

Ignoring warning signs costs more in the long run. Call us today for a free diagnostic consultation.

OUR FACILITY

A Clean, Modern Shop You Can Trust

A wide view of a large home garage with workbenches and tools along the walls
A clean, bright service hall with an SUV on a lift at the far end
Close-up of an engine's timing belts, pulleys and gears
Close-up of rows of chrome sockets and screwdrivers in a tool tray
A white SUV on a lift in a long, bright service hall with tool cabinets and a mechanic
Old engine blocks and scrap parts piled on the floor of a repair yard

CUSTOMER REVIEWS

What Our Customers Say

“I've been bringing my cars here for 6 years. They're honest, fair, and always explain what needs to be done vs. what can wait. Rare to find a shop you can trust completely.”

Mike R.
Mike R.Toyota Camry

“My check engine light came on during a road trip. They got me in same-day, diagnosed the issue quickly, and had me back on the road by afternoon. Lifesavers.”

Sarah T.
Sarah T.Toyota Camry

“After the dealer quoted a big repair, I brought it here for a second opinion. Turned out I only needed a much smaller repair. They could have easily taken advantage.”

James K.
James K.Toyota Camry

“They texted me photos of what they found under my car. I could see the worn parts myself. That kind of transparency is why I'll never go anywhere else.”

David P.
David P.Toyota Camry

“Brought my daughter's car in for a weird noise. They found it in 20 minutes, showed me the issue, and fixed it. The dealer wanted to 'keep it overnight for diagnostics' and bill by the hour.”

Robert A.
Robert A.Toyota Camry

“Clean waiting room, fair prices, and they actually finish when they say they will. I've recommended them to everyone in my family.”

Linda M.
Linda M.Toyota Camry
  • 7AM

    Doors Open Weekdays
  • Free

    Written Estimates
  • 24/7

    Key Drop Box
  • Text

    Repair Updates

ABOUT US

Family-Owned. Locally Trusted.

Crankcase Auto is run by Mike Brennan, a lifelong mechanic who believed Portland deserved an honest, no-nonsense auto repair shop.

After years working at dealerships, Mike saw too many customers get overcharged for simple repairs. He opened Crankcase with one promise: tell people what they need, what they don't, and charge a fair price for quality work.

Today, our team of experienced technicians carries that same philosophy. We treat every vehicle like it belongs to family — because many of our customers are.

  • Experienced Technicians

  • All Makes & Models

  • Written Estimates — Always

  • No Work Without Your Approval

A mechanic in blue overalls stands beside an engine on a red stand in a service hall

HOW IT WORKS

Simple, Transparent Process

From drop-off to pick-up, we keep you informed every step of the way.

A hand drops a car key fob into another's open palm against a white wall
  • Schedule

    Book online or call. Same-day appointments often available.

  • Drop Off

    Bring your vehicle in or use our early drop-off key box — available 24/7.

  • Diagnose

    Our techs perform a thorough inspection and computer diagnostics.

  • Approve

    We call with findings and a clear estimate. No work without your OK.

  • Repair

    Experienced technicians complete the work to factory standards.

  • Pick Up

    Quality-checked, road-tested, and ready. We explain what was done.

FAQ

Common Questions

Quick answers to the questions we hear most often.

01Do you work on all makes and models?

Yes — our technicians service all domestic and import vehicles, from daily drivers to luxury cars. We have the diagnostic equipment for Ford, Chevy, Toyota, Honda, BMW, Mercedes, and everything in between.

02How long will my repair take?

Most routine services (oil changes, brake pads, diagnostics) are completed same-day. Larger repairs typically take 1-2 days. We'll give you a clear timeline with your estimate and text you updates.

03Do I need an appointment?

We accept both! Appointments guarantee a time slot, but we welcome walk-ins and will get you in as quickly as possible. For oil changes and inspections, no appointment is usually needed.

04How do I know if I really need the repair?

We believe in full transparency. We'll show you exactly what we found — often with photos from under your vehicle. We explain what's urgent, what can wait, and what's just something to keep an eye on. No pressure, ever.

05What forms of payment do you accept?

We accept all major credit cards (Visa, Mastercard, Amex, Discover), debit cards, cash, and personal checks. We want to make payment as easy as possible.

06Do you do state inspections?

Yes, we perform state safety and emissions inspections. Walk-ins are welcome for inspections, and they typically take 30-45 minutes.

GET IN TOUCH

Schedule Your Service

Call us directly or fill out the form below and we'll get back to you within the hour during business hours.

Hours
Mon–FriToday
7AM–6PM
SatToday
8AM–2PM