Stonum Automotive
1812 Sunset Place, Longmont, CO 303-485-9303

Engine and Exhaust

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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: Feb 23, 2025

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: Oct 05, 2021

Radiator Fans

{{ image('MzU0') }} Longmont residents who are old enough have probably heard the term “fan belt”. Back in the day the radiator fan in your vehicle was turned by a belt driven by the engi...
Published on: Feb 28, 2021

Stonum Automotive Tech Question On Your Cooling System

Question I was driving down the freeway and smoke started coming out of my car.  I pulled over and called my husband.  I had to be towed to my mechanic.  He said my car had overheated....
Published on: Jan 25, 2021

Simple Answers from Stonum Automotive for Longmont: 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 24, 2020

Stonum Automotive 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: Jan 06, 2020

Air Blend Box

You push a few buttons or turn some knobs, and voila! You have air blowing on your feet or cool air chilling your face. But how does all that happen? Well, it's all thanks to ...
Published on: Oct 29, 2019

Cooling System

We’re often asked questions about the cooling system – the system that cools your engine and keeps it at the proper operating temperature.  Let’s examine the topic in two areas:...
Published on: Sep 01, 2018