RADIATOR REPAIR & COOLING SYSTEM SERVICE
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Radiator Repair & Coolant Service in Columbus, OH
Your engine produces enough heat to damage itself within minutes if the cooling system isn't doing its job. The radiator, thermostat, water pump, and coolant all work together to keep operating temperatures in a safe range — and when any one of them fails, the consequences can be expensive.
At Petty's Auto & Electric Service, we provide complete cooling system diagnostics and repair for cars and trucks of all makes and models. Whether you need a routine coolant exchange (commonly called a coolant flush), radiator leak repair, or full radiator replacement, we'll identify the problem accurately and fix it right the first time.
Signs Your Cooling System Needs Attention
Catching cooling system issues early can save you from a roadside breakdown — or a blown head gasket. Watch for these warning signs:
- Temperature gauge running higher than normal — even if it hasn't hit the red zone yet, a creeping needle means something is off
- Coolant puddles under your vehicle — typically green, orange, or pink fluid; even small drips indicate a leak that will get worse
- Sweet, syrupy smell from the engine bay — that's ethylene glycol, the base chemical in most coolants, and it means you're losing fluid
- Steam or white smoke from under the hood — pull over immediately; your engine is already overheating
- Heater blows cold air — your cabin heater runs off the cooling system; if it's cold, coolant flow may be blocked or low
- Low-coolant or overheating warning light — don't ignore this; continuing to drive risks warping the cylinder head or cracking the engine block
- Visible corrosion or discolored coolant — rust-colored or murky coolant has lost its protective properties and is actively damaging your system
Our Cooling System Services
We use factory-level diagnostic tools and quality parts to get your cooling system back to spec. Here's what we offer:
Coolant Exchange (Coolant Flush)
We replace old, degraded coolant with fresh fluid that meets your manufacturer's specifications. Our exchange process cycles new coolant through the entire system — engine block, heater core, and radiator — removing contaminants and restoring proper freeze and boil protection. Most vehicles need this every 30,000–50,000 miles.
Radiator Leak Repair
Radiator leaks can come from cracked plastic end tanks, corroded metal cores, failed gaskets, or damaged hose connections. We pressure-test the system to pinpoint the exact source, then repair or replace the affected component. Stop-leak products are a temporary fix at best — a proper repair prevents a small leak from becoming a major failure.
Radiator Replacement
When a radiator is too damaged or corroded to repair reliably, we replace it with a quality unit matched to your vehicle. This includes vehicles with integrated transmission coolers, which require careful selection to maintain both engine cooling and transmission protection.
Overheating Diagnostics
Overheating can stem from multiple causes: a failed water pump, stuck thermostat, collapsed hose, blown head gasket, or even a faulty radiator fan. We systematically test each component — including combustion gas tests to check for internal engine leaks — so you get an accurate diagnosis, not guesswork.
Thermostat Replacement
The thermostat controls when coolant flows through the engine. When it sticks closed, the engine overheats rapidly. When it sticks open, the engine runs too cool, hurting fuel economy and heater performance. We replace thermostats with OEM-spec units and verify proper operation before the vehicle leaves.
Hose & Clamp Inspection
Rubber coolant hoses deteriorate from the inside out — they can look fine on the outside and be ready to burst under pressure. We inspect upper and lower radiator hoses, heater hoses, and bypass hoses for swelling, soft spots, and cracks, and replace them before they fail.
Why Choose Petty's Auto for Cooling System Repair?
Over 40 Years of Experience
Serving Columbus since the early 1980s. We've seen every cooling system failure there is — and we know how to fix them efficiently.
Factory-Level Diagnostics
We don't guess. Advanced diagnostic tools let us pinpoint the exact cause of overheating, leaks, and coolant loss so you're not paying for unnecessary parts.
Classic & Modern Vehicles
From vintage restorations to late-model trucks, we service all types of cooling systems — including hard-to-find parts for older vehicles.
Transparent Pricing
Clear estimates before work begins. No surprise charges, no upselling on parts you don't need.
Radiator & Cooling System FAQ
Common questions we hear from Columbus drivers about radiator repair and cooling system maintenance.
How do I know if my car's radiator needs repair?
The most common signs are a temperature gauge reading higher than normal, visible coolant puddles under your vehicle (usually green, orange, or pink fluid), steam from under the hood, a sweet smell from the engine bay, or your heater blowing cold air. If your low-coolant or overheating warning light comes on, pull over safely and call for service — driving an overheating engine can cause thousands of dollars in damage.
What's the difference between a coolant flush and a coolant exchange?
A coolant exchange is the current industry-standard method. It replaces old coolant with fresh fluid using a machine that cycles new coolant through the entire system — engine block, heater core, and radiator. The older "flush" method used pressurized water or chemicals to force debris out, which could sometimes damage older gaskets or seals. Most manufacturers, including GM, now recommend the exchange method. When customers search for a "coolant flush," a coolant exchange is typically what they need.
How often should I have my cooling system serviced?
Most manufacturers recommend a coolant exchange every 30,000 to 50,000 miles, or every 3 to 5 years — whichever comes first. If you drive in stop-and-go traffic, tow regularly, or deal with Columbus summers, more frequent service may be needed. Your owner's manual has the specific interval, and we can check your coolant condition during any visit.
Why does my car overheat in summer but run fine in winter?
Your cooling system works harder in warm weather for two reasons: higher ambient temperatures mean the radiator is less efficient at shedding heat, and your air conditioning compressor adds extra load to the engine. A system that's borderline — one with a slow leak, aging coolant, or a thermostat starting to stick — may keep up in cooler months but fail when summer pushes it past its limits. Spring is the ideal time for an inspection.
How much does radiator repair cost in Columbus?
Costs depend on the specific issue. A coolant exchange typically runs $120 to $180. Thermostat replacement is usually $200 to $400 depending on the vehicle. Radiator replacement can range from $400 to $900+ based on your make, model, and whether the transmission cooler is integrated. We provide a clear estimate before any work begins.
Can I just add water to my radiator if it's low?
In an emergency, plain water will prevent immediate overheating and get you to a shop safely. But it should never be a long-term solution. Coolant (antifreeze) raises the boiling point of the fluid, lubricates the water pump, and contains corrosion inhibitors that protect your radiator, heater core, and engine passages from rust and scale buildup. Water alone provides none of that protection.
Don't Wait for the Temperature Gauge to Hit Red
Whether you need a coolant exchange, radiator leak repair, or overheating diagnostics, the experienced team at Petty's Auto & Electric Service is here to help. We serve drivers across Columbus, Westerville, Worthington, Gahanna, New Albany, Lewis Center, Powell, and the surrounding areas.
Request an Appointment Or call (614) 224-5566
Address
Address
330 Washington Ave
Columbus OH 43215
Hours of Operations
Monday-Friday; 8 a.m.-6 p.m.
