John's Automotive Care
6267 Riverdale St San Diego, California 92120| (619) 280-9315

Engine and Exhaust

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Heater Core

You may have wondered where the warm air in your passenger compartment comes from. Well, as your engine starts to warm up, it also warms the coolant/antifreeze that circulates around the engine and th...
Published on: Nov 16, 2025

How Cool is That! (Coolant level sensor replacement)

Your vehicle’s engine runs hot.  It should, since it’s a series of little explosions that create the power that gets you going where you want to go.  To keep the engine cool, eng...
Published on: Oct 27, 2025

Heater Core

{{ image('MzU0') }} SAN DIEGO drivers may wonder where the air in a vehicle's passenger compartment comes from. Well, as your engine starts to warm up, it also warms the coolant/a...
Published on: Jul 20, 2025

John's Automotive Care Advice on Your Cooling System

Last week I was out running errands and my temperature warning light came on – total panic!  I pulled over and my car was overheating After it cooled down, I went right in to my service ce...
Published on: Mar 23, 2025

Simple Answers from John's Automotive Care for SAN DIEGO: Cooling System

Question My engine never overheats.  Why should I get a cooling system service? Answer That’s a good question to ask, because if you don’t have the full answer you may end up in tr...
Published on: Aug 25, 2024

John's Automotive Care Tech Question On Your Head Gasket

Question My name is Landon.  I bought a new minivan and it started smoking out the tail pipe.  They said my head gasket went out.  What can I do to prevent this from happening again? ...
Published on: Apr 10, 2024

Cooling System Service at John's Automotive Care in SAN DIEGO

SAN DIEGO drivers often ask questions about the cooling system, the system that cools your vehicle engine and keeps it at the proper operating temperature. Let’s examine the topic in two ar...
Published on: Aug 10, 2023

The Hot Switch (Coolant Vacuum Valve Switch)

When the weather gets cooler, you want the cabin of your vehicle to stay warm.  When you switch on the heat, you may find the air that comes out of the vents just isn't hot.  The problem co...
Published on: Nov 12, 2022