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)

Highland, Loma Linda, Rialto, Riverside, Grand Terrace, Bloomington, Highgrove, San Bernardino - the roads connecting th...
07/17/2026

Highland, Loma Linda, Rialto, Riverside, Grand Terrace, Bloomington, Highgrove, San Bernardino - the roads connecting these Inland Empire communities carry thousands of vehicles every day. Each city has its own driving patterns, road conditions, and commuter demands. Ray's Auto Service is positioned to serve drivers from across this entire region from its location in Colton. ☎️ (909) 370-3578

The cooling system in a modern vehicle is a closed-loop circuit that circulates coolant between the engine, radiator, an...
07/17/2026

The cooling system in a modern vehicle is a closed-loop circuit that circulates coolant between the engine, radiator, and heater core. A thermostat regulates when coolant flows to the radiator based on engine temperature. A stuck-open thermostat causes the engine to run too cold; a stuck-closed one causes overheating. It is a small part with a significant impact on performance.

Imagine pulling into a shop having never been there before. The first thing you notice is how the staff greets you - whe...
07/16/2026

Imagine pulling into a shop having never been there before. The first thing you notice is how the staff greets you - whether they make eye contact, whether they listen fully before jumping to conclusions, and whether they explain what they found in plain language. That experience shapes how much you trust the diagnosis and how likely you are to return. Trust is built in the details.

Serpentine belts are easy to forget about because they sit quietly under the hood doing multiple jobs at once - driving ...
07/14/2026

Serpentine belts are easy to forget about because they sit quietly under the hood doing multiple jobs at once - driving the alternator, power steering pump, water pump, and air conditioning compressor simultaneously. When one breaks, all of those systems stop at the same time. Inspecting belt condition during routine service is one of the simplest ways to avoid a roadside breakdown.

Ray's Auto Service has been family owned and operated in Colton since 1991 - more than three decades of serving the same...
07/14/2026

Ray's Auto Service has been family owned and operated in Colton since 1991 - more than three decades of serving the same streets, the same neighborhoods, and generations of the same families. That kind of staying power in a competitive industry says something about how the work gets done and how customers are treated day after day.

California's Smog Check program is one of the strictest emissions testing systems in the country. Vehicles are evaluated...
07/10/2026

California's Smog Check program is one of the strictest emissions testing systems in the country. Vehicles are evaluated on hydrocarbons, carbon monoxide, and oxides of nitrogen - all byproducts of combustion. Cars that fail typically have issues with the catalytic converter, oxygen sensors, or the EVAP system. Understanding the process removes a lot of the mystery around that biennial visit.

Transmission fluid does more than lubricate - it acts as a hydraulic fluid that enables gear shifts, a coolant that mana...
07/09/2026

Transmission fluid does more than lubricate - it acts as a hydraulic fluid that enables gear shifts, a coolant that manages heat inside the transmission, and a cleaning agent that carries debris away from moving parts. When it breaks down or becomes contaminated, all three of those functions degrade at once. Regular fluid checks matter more than most drivers realize.

The Inland Empire has a strong culture of taking care of what you own. From tradespeople who depend on their trucks ever...
07/08/2026

The Inland Empire has a strong culture of taking care of what you own. From tradespeople who depend on their trucks every single day to families juggling school runs and weekend road trips - vehicles here are not luxuries, they are lifelines. Keeping that community moving is something the team at Ray's Auto Service takes seriously every day.

Wheel alignment is one of the most overlooked aspects of vehicle maintenance. It does not just affect how straight your ...
07/07/2026

Wheel alignment is one of the most overlooked aspects of vehicle maintenance. It does not just affect how straight your car tracks - misalignment creates uneven tire wear that can cut tread life significantly. A vehicle even slightly out of spec can pull subtly to one side, increasing driver fatigue on longer commutes and highway drives.

A typical auto repair shop starts its morning well before the first customer arrives. Lifts are inspected, alignment equ...
07/07/2026

A typical auto repair shop starts its morning well before the first customer arrives. Lifts are inspected, alignment equipment is calibrated, and fluid levels in shop machinery are checked. Technicians review the day's work orders so they can pull the right parts and tools in advance. That preparation is what keeps cars moving through service efficiently and accurately.

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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