Neighboring Systems in Your Vehicle: Air Conditioning & Heating

These two systems actually share the same “home” under the hood, but they are very different systems. Literally, the difference between “hot & cold”.

Kind of like two different families who live next to each other in a duplex-type of property. They are connected in housing, but different in operation and function.

They share

The air conditioning and the heating systems share the vent system in your vehicle, similar to the way your air conditioner and your heater share the vent system in your home.

Testing, testing

When you bring your vehicle in for servicing, we test how well each system is operating. We use a temperature probe at the vents to measure how hot the heater runs and how cool the air conditioner blows.

We also test the temperatures during a road test with all of our services, from oil changes to some of the bigger service inspections (like 30k or 60k appointments).

In the winter we do test the air conditioning because it enhances the defroster’s effectiveness by drying the damp air in the passenger cabin.

Spring and Fall are great times to have both heating and air conditioning system temperatures tested.

Schedule your vehicle to get the temperatures tested on your heating and air conditioning systems.

Creature Comforts vs. Critical Engine Operation

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Our Reviews

Tom's Automotive Service
Reviewed from Google

4.2 out of 5 stars

Penny Winfield
Penny Winfield

5 out of 5 stars

posted 1 day ago

I started going to Tom's Automotive Service on the recommendation of a friend and I am so glad that I did! I found the staff to be professional, knowledgeable, friendly, courteous and accommodating. I stopped by to make an appointment, but needed to have oil added immediately which was done. I also had another problem which they handled promptly. Now they are helping me set up a schedule for servicing my car that should keep things running smoothly. I feel that my car is in good hands and I am very pleased.

Kyle Freemantle
Kyle Freemantle

5 out of 5 stars

posted 3 months ago

Took in my Mazda for a 20k mile tune-up and had the most transparent experience with a mechanic I've ever had. Easy to work with, friendly staff, all that good stuff. I have a car that has relatively uncommon oil (0W-20) and within an hour of me dropping it off for service they called me up and told me they'd have to go and get some and how it would affect the cost of repair. This wasn't a surprise to me, but they're the first place that's actually given me a heads up. In any case, good and timely service at a reasonable cost. Definitely give them a try if you need service in West Seattle.

Hannah Holmstrom
Hannah Holmstrom

5 out of 5 stars

posted 1 month ago

The crew at Tom's is extraordinary. They were incredibly helpful, and when my car couldn't be saved, Bryce took time out of his day to give me direction on where to go and what to do. They were overly generous giving me ample time to leave my car in their lot while I figured out what to do with it. I would recommend Tom's to everyone! Such great people!!!

Ryan Day
Ryan Day

5 out of 5 stars

posted 6 hours ago

Always great service . The staff is amazing . My wife and I have used them a few times since moving to West Seattle 11 years ago . The shuttle is always nice since we live in West Seattle.

Suky Hutton
Suky Hutton

5 out of 5 stars

posted 3 months ago

Everyone at Tom's is a pleasure to work with: they're good listeners and generous problem solvers. They're clear about the repair work they suggest, they offer a range of options when that's appropriate, and their prices are fair. They also try to get you in as quickly as possible, sometimes immediately. I remain a grateful customer after 30 years!