Recent Blog Posts

How to Check for a Coolant Leak and Prevent Overheating

By Jake • September 16, 2025
Your vehicle’s cooling system plays a critical role in keeping your engine running smoothly.  Overheating can lead to costly repairs and potentially permanent engine damage. That’s why knowing how to check for a coolant leak and prevent overheating is essential for every car owner.  In this guide, we’ll break down the process step-by-step in an […] The post How to Check for a Coolant Leak and Prevent Overheating first appeared on HTC Automotive.

Why Your Car Makes Noise When Turning and How to Solve It

By Jake • September 9, 2025
Driving should be a smooth and enjoyable experience, but strange noises coming from your car, especially when turning, can be unsettling.  Not only is this an annoyance, but it might also be a warning sign of a bigger issue.  In this article, we’ll explore the common causes of these noises, how to identify them, and […] The post Why Your Car Makes Noise When Turning and How to Solve It first appeared on HTC Automotive.

Common Rear Differential Problems and Their Symptoms

By Jake • August 15, 2025
When you start noticing a whining sound as you accelerate or a subtle vibration that wasn’t there before, it might be time to check your vehicle’s rear differential. These symptoms can be early warnings of bigger issues lurking within the differential gears or bearings.  Ignoring them could lead to more severe problems, such as handling […] The post Common Rear Differential Problems and Their Symptoms first appeared on HTC Automotive.

Top Causes of Car Hesitation During Acceleration

By Jake • August 8, 2025
Car hesitation during acceleration is one of the most frustrating problems drivers can experience.  Whether you’re trying to merge onto a highway or pass another vehicle, a lack of responsiveness can be both annoying and potentially dangerous. Understanding the causes behind this issue can help you pinpoint the problem and address it effectively. In this […] The post Top Causes of Car Hesitation During Acceleration first appeared on HTC Automotive.

A Complete Guide to Fixing a Leaking Oil Pan in Your Car

By Jake • July 16, 2025
Is your car leaving oil stains on your driveway? This could be a sign of a leaking oil pan. While it might seem intimidating, fixing an oil pan leak can be manageable with the right tools and a bit of patience.  In this guide, we’ll walk you through the steps to diagnose, prepare for, and […] The post A Complete Guide to Fixing a Leaking Oil Pan in Your Car first appeared on HTC Automotive.

Diagnosing Transmission Fluid Leak When Parked

By Jake • July 9, 2025
A transmission fluid leak is a common issue that many car owners face. When you notice a suspicious puddle beneath your vehicle, it’s easy to jump to conclusions.  However, diagnosing the issue properly is essential to avoid unnecessary repairs and ensure your car runs smoothly.  In this guide, we’ll walk you through how to identify […] The post Diagnosing Transmission Fluid Leak When Parked first appeared on HTC Automotive.

Why Are My Brakes Squeaking and Common Solutions for Quiet Driving

By Jake • June 16, 2025
Hearing a squeaking noise when you press the brake pedal can be annoying, and it might make you wonder if something is wrong with your car.  Brakes are a critical part of your vehicle’s safety system, so understanding the cause of the squeak and how to fix it is essential for smooth and quiet driving.  […] The post Why Are My Brakes Squeaking and Common Solutions for Quiet Driving first appeared on HTC Automotive.

Why Your Car AC Is Blowing Warm Air and How to Cool It Down

By Jake • June 9, 2025
Nothing is more frustrating than turning on your car’s air conditioning (AC) on a sweltering day, only to feel warm air blowing in your face.  This common issue can turn a pleasant drive into a sweaty ordeal. But why does this happen, and more importantly, how can you fix it?  In this article, we’ll explore […] The post Why Your Car AC Is Blowing Warm Air and How to Cool It Down first appeared on HTC Automotive.

Common Causes of Knocking Sounds When Your Car’s AC is Running

By Jake • May 16, 2025
If you’ve ever turned on your car’s air conditioning (AC) and noticed an unusual knocking sound, you’re not alone. This noise can be frustrating, and it’s often a sign that something isn’t quite right with your vehicle.  While an occasional noise might not seem like a big deal, it’s essential to address these sounds to […] The post Common Causes of Knocking Sounds When Your Car’s AC is Running first appeared on HTC Automotive.

Automotive Diagnostic Service

Boulder, CO

Financing Available 

Dealership-Level Service & Beyond

Nationwide Warranty Available

Hours:

Get Your Vehicle Back on Track With Automotive Diagnostic Service

When your car isn't running right, you need quick answers. HTC Automotive Repair offers thorough automotive diagnostic services to identify the problem and get you back on the road. Our cutting-edge diagnostic equipment and skilled technicians work together to find the source of your vehicle's issues, from puzzling check engine lights to performance problems you can't quite figure out.


We provide:

  • Engine diagnostics
  • Electrical system analysis
  • Transmission diagnostics
  • ABS and traction control system checks
  • Fuel system diagnostics
  • Emissions system testing


Stop wondering about your car troubles. Contact us for precise diagnostics and dependable solutions.


Signs You Might Need Automotive Diagnostic Service

Today's vehicles are intricate machines, and it's not always clear when something's wrong. Here are some signs that it's time for a diagnostic check-up:

  • Check engine light is on or flashing
  • Unusual noises or vibrations
  • Lower fuel efficiency
  • Reduced power or acceleration
  • Odd smells coming from the vehicle
  • Engine starting problems


If you've noticed any of these issues, it's important to address them quickly. Ignoring these signs may lead to more serious and expensive repairs later.


Why You Need Professional Automotive Diagnostics

While DIY methods or basic code readers might seem appealing, professional automotive diagnostics offer several benefits:

  • Use of sophisticated diagnostic tools
  • Decoding of complex diagnostic signals
  • Testing of specific components
  • Full system evaluations
  • Spotting of intermittent problems
  • Avoiding incorrect diagnoses and unneeded repairs


Our diagnostic service does more than just read codes. We examine the data, consider your vehicle's history, and apply our extensive knowledge to give a complete picture of your car's condition.


Why Choose HTC Automotive Repair

Your vehicle deserves the best care available. HTC Automotive Repair stands out as your reliable partner for automotive diagnostics and repair:

  • Serving Boulder, CO, for over 20 years
  • ASE-certified technicians
  • Manufacturer-trained staff
  • Dealership-quality service with personal attention
  • Free check engine light scan
  • 36-month/36,000-mile nationwide warranty


We're dedicated to delivering quality service that ensures your safety on the road and gives you confidence. Let us help you resolve your car issues before they worsen.


Contact Us

Ready to discover what's really happening with your vehicle? HTC Automotive Repair is here to provide the answers and solutions you need. Our diagnostic services are comprehensive, quick, and customized for your specific vehicle.


Contact us today to book your automotive diagnostic service and start your journey towards a smoother, worry-free ride.

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HTC Automotive Repair

36-Month/36,000-Mile Nationwide Warranty

Drive with confidence knowing your repairs are backed by comprehensive warranty coverage. Whether you're in Boulder or traveling across the country, you're protected by our PAC Insurance Program.

Get peace of mind with every repair!

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