Meet Our TechNICIANS
Specially trained, professional, expert technicians to get your job done fast!
We’ve got the best in the business
Our specially-trained technicians are trusted experts with decades of experience. They are ICAR-trained in ADAS calibration as well as mechanical work so you can get all your sublet repair work completed in one visit.
Tom McGuire

C.O.O. / Co-Founder
As a co-founder of Precision Diagnostics, Tom’s passion is “making sublet easy”. Offering the range of services with proactive understanding of the collision operator needs is Tom’s favorite aspect of what the PD operation does.
When Tom isn’t working, he simply enjoys family time.
Dave Zielke

C.E.O. / Co-Founder
Passionate about disrupting the automotive collision industry, Precision offers the first full-service calibration center.
Dave enjoys spending time with his wife and three kids when not working.
Henry Allbright

Mechanical Technician
Bringing several ASE designations and a Toyota Master Level certification to the base of shared knowledge at PD, Henry is a natural fit to the team.
When Henry is not at work fixing mechanical issues, he can be found enjoying his hobby which is also working on cars.
Dean Christensen

General manager - Milwaukee
Dean enjoys summers putting miles on his Harley and golfing.
Cody Jacoby

Recovery Driver
Cody enjoys family time, working out, going to the races, and being outdoors.
Hector Martinez

Mechanical/ADAS Technician
Detailing his Jeep and gaming are among Hector’s favorite things to do outside of work.
Schawn McConochie

Diagnostic/ADAS Technician
Shawn brings to the PD wall of education a wealth of I-CAR, ASE, and Toyota OE certified education. Shawn finds the rapid acceleration of the industry and the challenges that it presents to be a continual source of interest.
When Shawn is not solving problems on the automotive front, he can be found with his family hunting, camping, or enjoying sports.
Zach McInnis

Diagnostic/ADAS Technician
Zach has been performing mobile diagnostic work and programming for 2+ years and holds multiple I-CAR training certificates focusing on all aspects to ADAS.
Zach is passionate about his work. He enjoys working on all Japanese brands and especially Toyota.
When not, calibrating cars Zach loves to work out and being outdoors.
Willi Pranata

Diagnostic/ADAS Technician
Willi received his bachelor’s degree while in Indonesia. Additionally, he is I-CAR certified in numerous areas.
Willi enjoys traveling and reading when not solving automotive problems.
Ben Shimel

Diagnostic/ADAS Technician
Ben enjoys working on Ford systems and is capable on all other makes. ADAS calibration and related services are among Ben’s favorite services we offer.
Ben spends his spare time shooting and waterfowl hunting.
Alex Schwarzenbacher

Recovery Driver
When not in a PD recovery truck, Alex can be found hunting and fishing.
Theresa Steindorf

Office Manager
Theresa is a fan of classic cars and finds the multiple services that we offer to provide one stop sublet to the collision world, her favorite part of what we do.
Theresa enjoys 4-wheeling with her grandson and volleyball among other things when not at work.
Precision Diagnostics is very customer centric in all of their interactions. They will pick up and deliver to help in getting the vehicle back as soon as possible. Quality standards are top-notch which helps ensure the peace of mind that all of the safety features are operating as designed with the documentation to verify it.
– Darwin Godejohn, Caliber Collision Centers