Ray's Auto Service

Ray's Auto Service Our goal is to ensure the complete satisfaction of every customer, while offering knowledgeable and Welcome to Ray's Auto Service.

We guarantee our work, covered by a nationwide warranty through Confidence Plus. ASE Certified Master Technicians. Services: Foreign and Domestic
Scheduled Maintenance
• Tune-Ups
• Oil Changes
• Coolant System Service
• Transmission Service
• Timing Belts / Chains
• Belts, Hoses, Filters
• Tire Inspections
-Rotation & Balancing

Brakes:
• Pad & Shoe Inspection & Replacement
• In-House Rotor & D

rum Resurfacing
• ABS Systems
• Hydraulic Systems
• Brake Fluid & System Flush

Air Conditioning Services:
• Check & Recharge Air Conditioning System
• Leak Detection
• Cabin Filter Replacement
• A/C Compressor / Condenser Repairs
• System Conversion To New Refrigerant
• A/C Hoses Replaced

Smog Check / Emissions Systems
• Smog Check Station
• Testing & Repairs
• Pre-Inspection Available
• “Check Engine” Diagnostics & Repair
• RVs, Medium – Duty Trucks (Gas Engine)

Engine Diagnostics & Repair

“Check Engine” Diagnostics & Repair
• Driveability Diagnostics & Repair
• Check “No-Start” Conditions & Repair
• Scheduled Tune-Ups & Maintenance
• Scheduled Timing Belt / Chain Replacement
• Engine Rebuilds & Valve Jobs
• Head Gasket Repairs
• Overheat Diagnostic & Repairs
• Cooling System Service & Repair
• Fuel-Injection Diagnostic & Service
• Motor Mounts
• Water Pumps

Electrical System Diagnostic & Repair
• Alternators, Starters, Ignition Coils
• Wires
• Battery Check

Chassis & Suspension
• Replace Shocks & Struts
• Replace Ball Joints & Bushings
• Replace Power Steering, Rack
& Pinion Systems
• Chassis L**e
• Tire Balancing

Transmission – Drivetrain
• Drivetrain “Noise” Diagnostics
• CV Axles Service & Repair
• Wheel Hub Bearings, Service & Replace
• Clutch Adjustments & Repairs
• V-Joints & Driveline Replacements
• Differential Service
• Transmission Fluid Change & Service
• Seals, Gaskets Replaced
• Transmission Mounts
Fleet Maintenance Program

We offer some of the FINEST fleet maintenance programs available!

• Full Service, All Repair & Diagnostics
• Net / Invoice Billing
• Saturday Appointments & Repair Available
• Free Pick-Up At Your Location (10 Mile Radius)
• Roadside Assistance
• Emergency Towing Service Available (To Our Shop)

Steering and suspension do more than just make the ride comfortable - they directly influence how well your vehicle resp...
09/04/2026

Steering and suspension do more than just make the ride comfortable - they directly influence how well your vehicle responds to the road. Worn shocks, struts, or tie rods can extend stopping distance and reduce handling precision. Understanding what these systems do helps drivers recognize when something feels different and act on it early.

What exactly happens during an engine diagnostic? When that check-engine light comes on, a technician connects a scan to...
09/03/2026

What exactly happens during an engine diagnostic? When that check-engine light comes on, a technician connects a scan tool to the vehicle is onboard diagnostic port. The tool reads fault codes stored by the engine control module, pointing toward the system that triggered the alert. From there, hands-on inspection confirms the root cause before any repair begins.

Did you know that tire pressure drops roughly one PSI for every 10-degree Fahrenheit decrease in temperature? As morning...
09/02/2026

Did you know that tire pressure drops roughly one PSI for every 10-degree Fahrenheit decrease in temperature? As mornings get cooler across the Inland Empire, keeping an eye on your tire pressure becomes more important than most drivers realize. A quick check takes less than five minutes and can make a real difference on the road.

Fall is here, and just like the seasons shift, your vehicle deserves a seasonal check to keep it running at its best. Co...
09/01/2026

Fall is here, and just like the seasons shift, your vehicle deserves a seasonal check to keep it running at its best. Cooler mornings in Colton can affect tire pressure, battery performance, and fluid viscosity. Ray is Auto Service has been helping drivers navigate every season since 1991 - stop by and let the team take a look. 📍 523 E Valley Blvd, Colton, CA 92324

August is almost over, but summer driving conditions will linger for weeks in the Inland Empire. If your vehicle has bee...
08/31/2026

August is almost over, but summer driving conditions will linger for weeks in the Inland Empire. If your vehicle has been working hard this season - long trips, heavy loads, stop-and-go heat - a quick multi-point inspection before fall is a smart move. Open Monday through Friday 8am to 5pm and Saturday 8am to 2pm. 📍 523 E Valley Blvd, Colton, CA 92324

How does tire rotation actually extend tire life? Front and rear tires wear differently because of weight distribution a...
08/28/2026

How does tire rotation actually extend tire life? Front and rear tires wear differently because of weight distribution and steering forces. Rotating them at regular intervals - typically every 5,000 to 7,500 miles - evens out that wear pattern, helping all four tires last longer and perform more consistently. ☎️ (909) 370-3578

Some repairs require a story to explain. A customer once described a faint vibration that only appeared above 60 mph on ...
08/27/2026

Some repairs require a story to explain. A customer once described a faint vibration that only appeared above 60 mph on the freeway. Diagnosing it took time, a test drive, and careful inspection. It turned out to be a wheel balance issue - simple in the end, but the process of finding it was a good reminder that thoroughness matters.

Exhaust systems do more than reduce noise. They direct harmful gases away from the cabin, help the engine maintain corre...
08/27/2026

Exhaust systems do more than reduce noise. They direct harmful gases away from the cabin, help the engine maintain correct back pressure, and contribute to fuel efficiency. A small leak in an exhaust component can affect all three of those functions - which is why it is worth addressing sooner rather than later.

Grand Terrace, Highgrove, and Bloomington may be smaller communities, but they are home to thousands of daily commuters ...
08/25/2026

Grand Terrace, Highgrove, and Bloomington may be smaller communities, but they are home to thousands of daily commuters who depend on their vehicles. Local auto care that understands the roads, the commutes, and the climate of the Inland Empire is a different kind of service than one-size-fits-all chain maintenance.

Power steering has evolved significantly over the decades. Older hydraulic systems use fluid that needs to be checked an...
08/24/2026

Power steering has evolved significantly over the decades. Older hydraulic systems use fluid that needs to be checked and replaced over time. Many newer vehicles use electric power steering with no fluid at all. Knowing which system your car uses helps you ask the right questions during your next service visit.

Address

523 E Valley Boulevard
Colton, CA
92324

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm
Saturday 8am - 2pm

Telephone

(909) 370-3578

Website

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