“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.”

PRECISION DIAGNOSTICS & EXPERT REPAIR
Advanced diagnostic technology paired with experienced technicians. Your vehicle's problems don't stand a chance.

OUR EXPERTISE
From routine maintenance to complex diagnostics, our team delivers precision work on all makes and models.
Advanced OBD-II and manufacturer-specific diagnostic tools pinpoint issues fast. From sensor replacements to complete engine rebuilds.

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

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

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

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

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


WHY CHOOSE US
We go beyond basic repairs to deliver an experience built on transparency, expertise, and respect for your time.
Detailed written estimates before any work begins. No hidden fees, ever.
Most routine repairs and maintenance completed the same day you drop off.
Dealership quality at independent shop prices. We match written estimates.
We use OEM and name-brand parts — never cheap aftermarket that fails early.
If something isn't right after a repair, bring it back. We'll take care of it.
No surprises on your bill. We always call for approval before doing anything beyond the estimate.

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

“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.”

“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.”

“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.”

“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.”

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

7AM
Doors Open WeekdaysFree
Written Estimates24/7
Key Drop BoxText
Repair UpdatesABOUT US
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

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

Book online or call. Same-day appointments often available.
Bring your vehicle in or use our early drop-off key box — available 24/7.
Our techs perform a thorough inspection and computer diagnostics.
We call with findings and a clear estimate. No work without your OK.
Experienced technicians complete the work to factory standards.
Quality-checked, road-tested, and ready. We explain what was done.
FAQ
Quick answers to the questions we hear most often.
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.
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.
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.
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.
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.
Yes, we perform state safety and emissions inspections. Walk-ins are welcome for inspections, and they typically take 30-45 minutes.
GET IN TOUCH
Call us directly or fill out the form below and we'll get back to you within the hour during business hours.