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car radiator repair

Radiator overheating? AA Auto Repair has your Radiator Fix! We deal in all makes and models and will have your Over-Heating issues taking care of immediately.

(619) 448-5800

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radiator Repair Service


Your vehicle?s radiator maintains proper engine temperature by circulating coolant to prevent overheating. The ?engine hot? indicator, the Check Engine light, or steam coming from under the hood all indicate the need for radiator repair or replacement. It?s important that you don?t ignore your radiator-related needs. Just as important is to have the right hands handling your radiator? those of experienced professionals who will deliver precise radiator repairs to keep you driving smoothly. You?ll find exactly this and more at AA Auto Repair & Tires in El Cajon, CA


Here at AA Auto Repair & Tires, we?re proud of the reputation we?ve earned for accurate, long-lasting radiator repair and replacement. Our well-trained technicians have been serving El Cajon, CA and the entire county since 1994. Utilizing the most advanced diagnostic equipment, we?ll accurately diagnose even the most complex radiator repair issue you?re experiencing, then with your approval, complete all necessary work. Considering our competitive rates and keen focus on customer service, we hope you?ll consider us your affordable dealer alternative for any radiator repairs you ever need.


Effective radiator repair or replacement involves more than the matter at hand; a long-term health plan will keep you driving with confidence for thousands of miles ahead. When you bring your vehicle to AA Auto Repair & Tires in El Cajon, CA, as part of any service we?ll perform a thorough digital inspection, including photos. You?ll have all the information you need to make informed decisions, based on your priorities and budget. We know there?s never a good time for radiator repairs, and it?s our mission to make the process pleasant for you.


AA Auto Repair & Tires wants to make sure you don’t spend unnessary dollars on un-needed service. Check out some of our Frequently Asked Questions regarding El Cajon Radiator Services. If you want to know, “How much for a new radiator installed?”


Check out some of our Frequently Asked Questions regarding Radiator Repair in El Cajon, CA. We try to go over some of the most common questions. If you have additional questions feel free to call.

What should I do if there's water leaking from my car?

What should I do if there's water leaking from my car?

Why is my Engine Temperature Light is On.

Indicator light means the engine temperature has exceeded normal limits. Check coolant level, fan operation, radiator cap, coolant leaks.

Why does my car need a radiator to operate effectively?

The radiator transfers the heat from the fluid inside your engine to the air outside, thereby cooling the fluid, which in turn cools the engine. Radiators are also often used to cool automatic transmission fluids, air conditioner refrigerant, intake air, and sometimes to cool motor oil or power steering fluid

What is the average life of a car radiator?

Most auto mechanics feel that a properly maintained radiator should last for at least eight to 10 years. Older metal radiators, when well maintained, can last for the life of the car, but modern radiators are mostly made from plastic rather than metal, and plastic expands and contracts as the radiator heats and cools.

How do I know when I need a new radiator?

One common sign a radiator is going bad is if it is leaking coolant, which can be caused by a crack. If there is green liquid found under a vehicle, then the radiator should be inspected to identify the area where the leak is present. A mechanic can perform a pressure test to determine the source of the leak.

2. Look inside your radiator. If you see “gunk” and if the color of the coolant is not bright yellow, green, or red in color. You should take it in for a looksy. AA Auto Repair is at 140 W. Bradley, in El Cajon, CA. Won’t take long, we promise.
Reasons for it turning colors are: oil in radiator (very bad – stop driving – immediately), rust, other contaminants that may have fallen in when you weren’t being careful.

3. Coolant level always low! Coolant doesn’t evaporate. You are leaking!

4. Car is running hot or keeps overheating. If you temperature gauge reads normal and your car is overheating…….your gauge doens’t work!

How full should I fill my radiator?

Your radiator should be full when COLD (Please remember heat expands – don’t overfill when engine is hot). It is a closed system and the radiator should be full to the top when cold. If needed, the system will send coolant to the remote reservoir when hot and pull it back into the radiator when it cools down.

Can I just put water in my Radiator?

Water will boil and evaporate in a hot temperature range, coolant DOES NOT! The antifreeze (aka: Coolant) is known to stay in the liquid state no matter how wide the temperature variations. This fact alone explains why you can’t replace coolant with water

Emergency driving may warrant it but you are taking your car’s life into your own hands

It is permissable to use A MAJORITY OF ANTIFREEZE AND A MINORITY OF WATER. It’s not optimal, but it will work.

How much does a new radiator cost?

If your radiator is “done for” you will have to pay anywhere from $300 to $1200 for a new one. This is a very basic guide not including unforeseen circumstances.




Water Pump

A water pump is a simple device that will keep the coolant moving as long as the engine is running. It is usually mounted on the front of the engine and turns whenever the engine is running.?



The thermostat is simply a valve that measures the temperature of the coolant and, if it is hot enough, opens to allow the coolant to flow through the radiator.

?If the coolant is not hot enough, the flow to the radiator is blocked and fluid is directed to a bypass system that allows the coolant to return directly back to the engine.?


Bypass System

This is a passage that allows the coolant to bypass the radiator and return directly back to the engine.?


Radiator Core

The radiator core is usually made of flattened aluminum tubes with aluminum strips that zigzag between the tubes.?

These fins transfer the heat in the tubes into the air stream to be carried away from the vehicle.?

On each end of the radiator core is a tank, usually made of plastic that covers the ends of the radiator,?


Heater Core

The hot coolant is also used to provide heat to the interior of the vehicle when needed. Like when your cold and turn the heat on.



There are several rubber hoses that make up the plumbing to connect the components of the cooling system.? The main hoses are called the upper and lower radiator hoses.? These two hoses are approximately 2 inches in diameter and direct coolant between the engine and the radiator.??Two additional hoses, called heater hoses, supply hot coolant from the engine to the heater core.? These hoses are approximately 1 inch in diameter.?


Radiator Fans

Mounted on the back of the radiator on the side closest to the engine is one or two electric fans inside a housing that is designed to protect fingers and to direct the air flow.??

These fans are there to keep the air flow going through the radiator while the vehicle is going slow or is stopped with the engine running.? If these fans stopped working, every time you came to a stop, the engine temperature would begin rising.


In El Cajon, CA

Providing Superior Auto Repair in El Cajon, CA for close to 30 years!

We handle all your Domestic and Foreign Car problems. No job is too big or too small. Our highly skilled mechanics are there for you.

Bring us your tough car problems and we will be able to find an economical solution for you and your family.


In El Cajon, CA

Save thousands of dollars by making sure your car is kept in tip-top condition. By performing routine maintenance on your car you will save time and most importantly your hard earned cash.

If you are hessitant to work on your car ask one of our technicians about our Car Maintenance Quarterly Service. This service provides top to bottom routine inspections for your car!