I own a local tree service and we use Simpson Enterprises for all of our fleet maintenance. Thank you Jake and team for always taking care of us.
Our ServicesServing Manhattan
Diagnostics and Repair in Manhattan, IL
Diagnostics and repair means finding the cause of a truck's problem with scan tools and hands-on testing, then fixing it, from engine and drivetrain issues to electrical faults.
Rated 5 on Google
What's Included
- Computer diagnostics
- Engine and drivetrain repair
- Brake and suspension work
- Electrical system troubleshooting
/REVIEWS
WHAT OUR CUSTOMERS SAY
5.0★
Average on Google · 2 reviews
Diagnostics and Repair Available In
We offer diagnostics and repair to customers across the region. Tap any area for full local details.
Related Services
View all →
Fleet Maintenance
Scheduled maintenance to keep your fleet operating. Oil changes, fluid checks, filter replacements and routine inspections to catch issues early and extend vehicle life.
Learn more
Brake Service
Brakes wear with heavy use. We inspect pads, rotors and fluid, replace what needs it, and make sure your fleet stops safely on every job site and road.
Learn moreAbout Diagnostics and Repair
Common questions and tips from our work with Manhattan customers.
- What does it mean when the check engine light comes on?
- The check engine light means the engine computer has stored a trouble code. Causes range from a loose gas cap or a failing sensor to misfires, vacuum leaks or emissions problems. A flashing light usually points to a misfire that can damage the catalytic converter, so stop driving and get the truck looked at. A scan tool reads the code, and testing confirms the actual cause.
- Is a code reader enough to diagnose a problem?
- A code reader tells you which system flagged a fault, but not always which part failed. One code can have several causes, such as wiring, a sensor or a mechanical issue. Proper diagnostics combine the code with live data, visual checks and testing of the suspect parts. That extra step helps you avoid paying for parts that were never the problem.
Tip
Note the Symptoms Before You Call
Before bringing a truck in, write down what you noticed. When did the problem start? Does it happen cold or warm, at certain speeds, under load or while towing? Were there any warning lights, noises or smells? Ask the driver too. Those details help narrow down a diagnosis and save time chasing a problem that comes and goes.
FAQ
FREQUENTLY ASKED QUESTIONS
Yes. We work with landscapers, tree services, contractors and other businesses that run a fleet. We handle scheduled maintenance and repairs to keep your vehicles running and ready for the next job.
We're open Monday through Friday, 7 AM to 4 PM. Call us at (815) 351-0706 to set up a maintenance appointment that fits your schedule. We close weekends.
Maintenance costs depend on the vehicle, the work needed, and how many trucks you bring in. Call us with details about your fleet and we'll give you a fair estimate for what you need.
We work during weekday business hours. If a vehicle goes down during our hours, call right away. For breakdowns outside our hours, you'll need roadside assistance or a tow service.
We work in Manhattan and the surrounding towns. Bring your fleet to us, or call to discuss your situation.
Follow the manufacturer's service schedule for each vehicle. Regular maintenance catches worn brakes, low fluids, dirty filters and other issues before they become bigger problems. We can review your fleet's needs when you call.
Still have questions? Contact Us