Texas Bus Sales was founded on April 1, 1986?by Darryl Rickaway, owner and operator. Eldorado National realized the opportunity for a great partnership and awarded Darryl with one of their Dealerships, which for many years was the number one bus manufacturer in the USA.
As a teenager, Darryl helped Garden Oaks Baptist Church with their bus ministry of picking kids up and bringing them to church. His job was going door-to-door as the host and getting riders on the bus.? Darryl also is very mechanically gifted and helped with the maintenance of the buses.? One Sunday the driver did not show up and Darryl became the bus driver, jumpstarting his career in the bus business. He continued to serve the church and community driving other church activities, youth camps and ski trips to Colorado. Darryl's service helped him land a job as a school bus driver while he was in college, 50 years ago.
About 5 years later, Darryl purchased his first fleet of motorcoaches and began offering tours and charters around Houston, Galveston and beyond. Darryl's entrepreneurial spirit lead to the establishment of Gray Line Sightseeing Tours in Galveston who had a unique offering of English double decker buses. Through networking and a few great mentors, Darryl was further inspired after a colleague said buses are made to be sold and shortly thereafter Texas Bus Sales was brought to life 40 years ago.
Darryl's passion for the transportation industry is inherent. In 1898 his Great-Grandfather left Lee County, Texas where he operated the cotton gin and moved to Borden County in West Texas to start afreight wagon business. Consequently, back in those days if you ran Wagons you had to build your own roads as most of West Texas was not yet developed. Darryl's Grandfather and Uncles realized the opportunity and began building roads. Around 1916 the Texas Legislature officially recognized the Texas Highway and soon after established the Highway Department who recruited Darryl's family, The Texas Highway Department then became TxDOT, and today TxDOT funded agencies are some of Texas Bus Sales primary customers.
Pictured below:
Darryl Rickaway & Txdot staff
Bottom picture: Grandfather: Elmer Hollar
Shuttle Bus A/C Maintenance: Keep Your Fleet Cool and Reliable
Few things can frustrate passengers and drivers faster than a broken air conditioning system on a hot day. For shuttle bus operators, A/C maintenance isn't just about comfort; it's about safety, reliability, and customer satisfaction.
Whether you are running an airport shuttle, hotel bus, or senior transport vehicle, regular A/C service helps avoid costly repairs and keeps your fleet operating efficiently.
In this post, we will break down the best practices for shuttle bus A/C maintenance, from simple daily checks to long-term preventive care.
1. Why A/C Maintenance Matters
A shuttle bus A/C system works hard. It cools a large cabin quickly, often while idling in hot weather. Without regular care, refrigerant leaks, worn belts, and dirty condensers can cause poor cooling performance or complete system failure.
Benefits of proper maintenance:
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Improved cooling efficiency
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Lower fuel consumption
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Fewer compressor failures
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Longer system lifespan
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Happier passengers and drivers
Did You Know? A poorly maintained A/C system can reduce overall fuel economy by up to 10%, especially in hot climates.
2. Daily and Weekly Checks
Quick inspections can catch problems early before they turn into expensive breakdowns.
Daily:
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Verify that the A/C cools evenly throughout the cabin.
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Listen for unusual noises (squealing belt, rattling fan).
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Ensure driver controls, switches, and blower speeds operate properly.
Weekly:
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Inspect the compressor clutch for smooth engagement.
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Check A/C drive belts for cracks, fraying, or slippage.
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Look for oil stains near fittings these often indicate refrigerant leaks.
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Clean condenser fins with compressed air if accessible.
3. Monthly or Seasonal Maintenance
Every 30 - 90 days (depending on climate and usage):
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Replace or clean cabin air filters. Clogged filters restrict airflow and strain the blower motor.
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Check refrigerant pressure with proper gauges.
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Clean evaporator coils and drains to prevent musty odors.
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Inspect electrical connections for corrosion or loose terminals.
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Examine hoses and lines for chafing or leaks.
Pro Tip: Always wear gloves and eye protection when handling refrigerant systems.
4. Annual or Pre-Summer Service
Before the busy season hits, schedule a full A/C inspection and recharge.
Full service checklist:
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Recover and measure refrigerant (check for leaks)
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Vacuum system and recharge to manufacturer specs
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Replace receiver/drier or accumulator if due
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Inspect and lubricate O-rings and fittings
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Test thermostat operation and temperature drop
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Clean or replace blower motor if noisy or slow
Many shuttle buses use dual A/C systems (front and rear units). Both must be checked, as rear evaporators often collect debris or moisture over time.
5. Common Shuttle Bus A/C Problems and Fixes
| Problem | Likely Cause | Recommended Fix |
|---|---|---|
| Weak cooling | Low refrigerant, dirty condenser, or bad expansion valve | Check for leaks, clean condenser, replace valve |
| Compressor won't engage | Faulty clutch coil, low pressure switch, or blown fuse | Test clutch and electrical circuits |
| Water dripping inside | Clogged evaporator drain or frozen coil | Clear drain and check airflow |
| Intermittent cooling | Loose connection, failing relay, or pressure switch issue | Inspect wiring and relays |
| Rear A/C not cooling | Blocked lines or faulty rear TXV | Flush system and replace valve |
6. Maintenance Tips for Fleets
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Keep a maintenance log for each vehicle (include date, refrigerant type, pressures, and replaced parts).
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Train drivers to report A/C issues immediately.
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Always use OEM-specified refrigerant (typically R-134a or R-1234yf).
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Store buses under cover when possible heat and UV exposure shorten component life.
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Consider scheduled maintenance every 6 months in hot or coastal regions.
Conclusion
A well-maintained shuttle bus A/C system keeps your passengers comfortable, your drivers happy, and your reputation strong. Regular inspections, clean filters, and timely service can prevent breakdowns during peak season and extend the life of your entire fleet.
Bottom line: Preventive maintenance costs a fraction of emergency repairs and ensures your fleet stays cool no matter how hot it gets outside.