Broke down? We come to you.
Nights, Sundays, the middle of a road trip. Call or text and we're on the way to diagnose it where it sits, show you what's wrong, and get you moving again.
Yes, the name is a pun. The diagnosis isn't a guess: one honest answer, not a car stuck between "maybe fine" and "maybe not."
51 reviews
Three steps. No shop visit.
Most of our customers found us while stuck somewhere. Here's what happens next.
Call or text
Tell us what it's doing. We'll often narrow it down by text before we even arrive.
We come to you
Home, work, the side of the road. Our service truck goes to the car. Need it moved? We tow or pick up.
See it, then fix it
We show you the problem and the parts, lay out your options, and you decide before any work starts.
Dave answers the phone, and he'll explain it.
Quantum Mechanics is Dave's business, built on a background in aviation mechanics, where "close enough" isn't allowed. Customers keep saying the same three things: honest, patient, and he teaches you something about your car.
Honest. Trustworthy. Madly skilled. Deeply altruistic.Julia E.
He'll also tell you when you don't need the repair, and he'll leave your car cleaner than he found it.
Not only did he fix my vehicle, he cleaned it.Ann S.


Diagnose first. Then fix it.
Check engine light on and nobody can tell you why? We'll collapse the mystery into one clear answer. We work on all makes and models, and on more than cars.
Diagnostics
Won't start / roadside
Pre-purchase inspections
Brakes & transmission
Cooling, A/C & heat
Diesel & TDI
Oil changes & maintenance
Towing & pick-up
Fabrication
Tractors, boats & small engines
Also: commercial repair, tire plugs and everyday fixes. Not sure if we can do it? Call and ask.
Honest. Fast. Shows up.
David came within 20 minutes our call, quickly diagnosed the problem, and got right to work fixing it.
Benjamin G.David took my BMW in on a Sunday when all other shops were closed.
Marcus S.Spent an hour looking for somewhere in Provo to look at my car on a Saturday, he was the only one who responded.
Shelby D.his prices were super transparent and reasonable, he tells and shows you what parts he’s getting and you can see the quality of the parts.
Sydney W.I am not a car person at all, I understand little about cars, but Dave made it perfectly clear what was needed.
Matt H.He performed a thorough diagnostical service and discovered that my battery cables were completely corroded and this was a major factor in a transmission delay that other auto shops told me was too far gone to fix.
Dallin M.Ultimately, he saved me from having to buy a new alternator.
Belicia G.I called with transmission problems at 11pm and he offered miraculous service over the next couple of weeks
Julia E.David helped me plug a tire on a Sunday when nobody else was open.
Nathan S.This man is a mobile mechanic with out a shop and he can do just about anything including fabricating metal parts.
Megan J.He examined the car and confirmed with me that non of those items n that list were necessary.
Diana D.David is a car whisperer.
Emily M.Reviews from Quantum Mechanics' Google listing.
Tell us what it's doing.
Call is fastest. If you'd rather write it down, send the form and we'll get back to you.