Norwood Auto Service
6055 N. Northwest Hwy. Chicago, IL 60631 / 773.774.7333

General / Misc

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Don't Blow a Gasket! (Valve Cover Gasket Replacement)

Don't Blow a Gasket! (Valve Cover Gasket Replacement)

When you head out to your vehicle after it's been parked and notice oil leaking underneath it, that's something to have looked at right away.  Oil leaks mean your oil level is probably low, and r...
Published on: May 03, 2026
MAF Sensor

MAF Sensor

Air and fuel are mixed together to be burned in your engine. You request how much of each you need by how hard you press on the accelerator, by going up or down a hill or by how much you are carrying ...
Published on: Sep 21, 2025
The 20.9 Percent Factor (Oxygen Sensor)

The 20.9 Percent Factor (Oxygen Sensor)

Do you know what gas makes up 20.9% of the air we breathe? It's oxygen.   Oxygen is an important part of the combustion process that enables your engine to make power.  The amount of ox...
Published on: Feb 23, 2025
Steamed Up (Vapor Coming Out of Vents)

Steamed Up (Vapor Coming Out of Vents)

Sometimes you may notice a little steam or vapor coming out of your vehicle's vents when running the air conditioning or heater.  Is this something about which you need to worry? The answer is i...
Published on: Nov 10, 2024
Deciphering the Menu Board: A to Z

Deciphering the Menu Board: A to Z

You may not be familiar with all of the items on your Chicago auto service center's menu board so here is a quick description of some of the typical services that might be listed. Remember, the board ...
Published on: Nov 03, 2024
Getting Off to a Running Start (Starter Replacement)

Getting Off to a Running Start (Starter Replacement)

When you start your vehicle’s engine, there’s another motor that makes that whole process possible.  It’s called the starter, and it’s a small electric motor that gets you...
Published on: Sep 22, 2024
OEM or Aftermarket? (Choosing Replacement Parts)

OEM or Aftermarket? (Choosing Replacement Parts)

It happens – a part on your vehicle breaks or just wears out.  The replacement part is very important. You want it to last and perform like new.  That’s why your NAPA AutoCare Ce...
Published on: May 20, 2024
Don't Store These in a Cold Vehicle (Items to Avoid Storing in a Freezing Vehicle)

Don't Store These in a Cold Vehicle (Items to Avoid Storing in a Freezing Vehicle)

The other day, a man walked into a restaurant carrying a can of paint. He had just bought the latex paint at the local home improvement store, and he was stopping for lunch. "Latex paint is water-bas...
Published on: Dec 25, 2023