Is Your Cars Check Engine Light On?
The check engine light is a useful way of knowing that your car’s on board computer has detected something outside of your cars expected operating parameters. The computer stores the diagnostics code which can be retrieved later and used by our highly trained technicians to quickly troubleshoot the underlying problem.

EMISSIONS
State certified emissions and safety inspections. Guaranteed quick accurate and effective.

AUTOMOTIVE
Get your repairs done at the number one car care provider in Utah Valley. Quick, friendly and cost effective.

DIESEL
Modern diesel engines are sophisticated, high-tech systems requiring the care of highly skilled and well trained technicians.
OUR EXPERTISE
We have the expertise you're looking for in automtive and diesel repair. We also can perform emissions inspection getting you in an out in 15 minutes.

EMISSIONS IN 15 MINUTES
In and out and on your way in 15 minutes using our state of the art equipment to accurately asses your car's emissions levels.
ACCURATE AUTO REPAIRS
Auto repairs are done right the first time thanks to our highly trained technical staff. We work on all makes, models and years.
DIESEL DONE RIGHT
Big rigs don't scare us. We have broadened our approach to on-engine as well as off-engine repairs of all types of diesel equipment.
Customer Testimonials
At Rex's Diesel and Auto, customer satisfaction is our ultimate goal. See what Rex's Diesel and Auto customers have to say about a variety of services that we provided for them.
“Doesn’t seem to matter what I bring in, Rex’s Diesel and Auto can tackle it. I’ve brought in a Jaguar XJS, BMW Z3, GMC Acadia and more and over time and the results are the same: effective communication, reasonable prices, and excellent workmanship.”

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– Derek R
– Derek R
“Rex’s was amazing! They saved me so much money!!! I went to another shop for safety and emissions and came out with a huge list of issues wrong with my car that would have cost over $1600. After a lot of pressure to get it fixed there, I decided instead to Rex’s a shot. They were able to help me understand what was truly urgent and what wasn’t without any pressure.”

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– Leah J
– Leah J
"These guys did a great job on my Jeep Cherokee. They were on-time and the quality of work was excellent. They put a new/re-manufactured engine and trans in it and also went over it front to back and fixed everything that was wrong and nothing that wasn't. I'm very satisfied."

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– Joe D
– Joe D