Old Town Peoria Auto Repair

Nancy Diaz - Facility Manager

Nancy Diaz - Facility Manager

Nancy Diaz began her career with Wilhelm Automotive 8 years ago as a Customer Service Support Associate at our Wilhelm Surprise location and shortly thereafter moving to become a Service Advisor. In 2017, Nancy was transferred to our Old Town Peoria location. After excelling as a Service Advisor, in 2019 Nancy accomplished her goal of becoming Wilhelm’s first female Manager. Per Nancy “ our teams’ focus is 100% repair accuracy and customer satisfaction.”

Nancy moved from Northern California to Arizona 18 years ago. Due to her passion in life, she spends her spare time volunteering at animal and homeless shelters. “I want to save them all”.


Gregg Hollon - Tech - Gregg Hollan is an automotive technician at Wilhelm’s Peoria location. Gregg has been in the automotive industry since 2012 and is ASE certified. Prior to being in the automotive industry, Gregg was enlisted in the United States Marine Corps as a Light Armored vehicle technician where he served two tours in Afghanistan. He loves the fact that Wilhelm is a family business and we strive to give our customers and honest and fair service at the end of the day. In his spare time not working, Gregg is raising his 3 kids with his wife, Rochelle.

Drew Sydow – Shop Foreman - Drew recently moved from our Peoria location from our shop in Arcadia and has over 35 certifications in the automotive industry with over 14 years of experience. He is our lead tech here in Peoria.  He specializes in Euro, Hybrid and Diesel vehicles. Giving apprentice techs the chance to learn from experienced mechanics, such as Drew is a way we believe helps everybody. In his spare time, Drew loves to travel and hike with his girlfriend. Also an interesting fact, throughout his lifetime, he has had over 150 stiches!

Cindy Wise – Customer Service advisor - Cindy is the customer service support specialist at Wilhelm Automotive, Peoria. Cindy has been with Wilhelm since July, 2011 and is a key part of the Wilhelm “Spirit committee” which puts on all of the companies events. Her duties include shuttling customers, checking in customers and handling the daily paperwork. She enjoys getting to know the customers while shuttling them to and from the shop. In her free time, she enjoys travelling with her husband, Robert.




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