Working Hours
  • Mon 8:00AM - 5:30PM
    Tue 8:00AM - 5:30PM
  • Wed 8:00AM - 5:30PM
    Thu 8:00AM - 5:30PM
  • Fri 8:00AM - 5:30PM
    Sat 8:00AM - 12:00PM
  • Sun Closed
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ENGINE MAINTENANCE

Engine maintenance is vital to keep your car or truck operating at peak performance. It also impacts the longevity of your vehicle's engine. Trust the experts at Northwest Automotive LLC to help you protect your investment. Call us at 419-782-7827 or visit our shop in Defiance 43512.

These are some of the engine maintenance services we offer.

Check Engine Light
No one likes to see their car's "Check Engine" light come on. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. At Northwest Automotive LLC, we can pull the code and diagnose the problem for you. Give us a call at 419-782-7827 or stop by the shop for our expert assistance.

Diesel
Although diesel engines don't require tune-ups and tend to last longer than gasoline engines, they do require regular maintenance. Typical maintenance tasks include:

  • Changing the oil & filter
  • Changing the air filter
  • Changing the fuel filter
  • Bleeding the fuel system
  • Draining the water separators
  • Refilling the urea injection system

You can count on the experts at Northwest Automotive LLC to help your diesel engine last a long time.

Fuel Injection
Fuel injection is a system for admitting fuel into an engine. Since 1990, fuel injectors have completely replaced carburetors as the primary means of getting gasoline into the engine. A fuel injector atomizes the fuel by forcibly pumping it through a small nozzle (under high pressure). Failure of the fuel injection system means poor performance and ultimately destroys the engine. Make sure your vehicle's fuel injection system is maintained properly. For all your fuel injection maintenance and replacement needs, call 419-782-7827 or visit Northwest Automotive LLC today.

Ignition
An ignition system is a system for igniting (using an electric spark) a mixture of fuel and air in a gasoline engine. A properly working ignition system means a properly starting engine and high performance from your car. For all your ignition system maintenance and replacement needs, call or visit Northwest Automotive LLC today.

Ignition Wires & Cables
Ignition cables also known as spark plug wires are an important part of your car's ignition system. They transfer the spark from the ignition coil to spark plugs that ignite the mixture of fuel and air. The mixture starts the engine. Over time, ignition wires and cables get weak and break down. This makes it impossible for the spark to reach the engine cylinders. This results in the engine misfiring. The car will eventually fail to start. If it does start, it will run poorly. Common symptoms of faulty ignition cables and wires are: poor gas mileage, engine misfires, engine light is on, and engine may vibrate. If your car needs new ignition cables and wires, call or visit Northwest Automotive LLC in Defiance, OH 43512. Here, you will have the wires and cables changed by a top-rated mechanic.

Oil, Lube, and Filter
To keep running smoothly, your car highly relies on oil, lube, and oil filters. Oil helps in lubricating, cooling, and cleaning the internal engine components. With time, motor oil becomes contaminated. Your car needs an oil, lube, and filter change every three months (or 3,000 miles). When it is time for a lube, oil, or filter change, take your vehicle to Northwest Automotive LLC in Defiance, OH 43512.

Spark Plugs
A spark plug delivers electric current to the combustion chamber from the ignition system. Spark plugs that haven't been changed for a long time can cause ignition problems. At Northwest Automotive LLC, we have automotive experts who will check and replace your spark plugs. For all your spark plug repair or replacement needs, call 419-782-7827 or visit Northwest Automotive LLC today.



To learn more about our Engine Maintenance services, call us at 419-782-7827 or request a quote by clicking below:


Request Quote


NAPA Service Assistant


What Our Customers Are Saying

Early Saturday morning, we were heading home to Minnesota and our car started making grinding noises. Called Tim and he said bring it in. Discovered we needed a new air conditioner compressor and he installed it and had us back on the road right away. It was a 12 hour drive home and we felt happy, cool and comfortable. Thanks Tim!


-Sharon Snyder

Extremely trustworthy and knowledgeable, with fair rates. Absolutely recommend this shop! You won't be disappointed.


-Jennifer Holman

My family has always gone to Northwest Automotive. We enjoy their great work, great deals, and friendly staff. I needed an alternator on an emergency. The shop owner found me an alternator after hours and willingly installed it to get us back on the road at a reasonable price. Always my first choice when recommending professional automotive repair.


-Sarah Doeden

Thanks so much for making our car safe, and doing it for an afforadable price.


-Madalyn Hasselschwert

Great service!


-Kevin Kaskel

The guys here are awesome! The fuel pump in my 99 Firebird went bad. They had my car towed to their place, diagnosed the problem, and had the fuel pump and the serpentine belt fixed within a few days. Will be recommending this place to all my family and friends!


-Jillian Graham

My daughter's car was making a horrible clacking noise from the engine. I trailered it to Northwest Automotive, and they took one listen and knew it was mechanical in nature. The worked really hard to quote a good price, find a used engine, and even offered to arrange financing. We chose not to repair the car at this time, and they didn't charge us for the effort they put in. I would definitely recommend these guys for any auto repair need.


-George Schaffer

My experience at Northwest Automotive has always been good. They have always gotten me in quickly and fixed whatever I needed for a reasonable price! I would definitely recommend doing business there. Specializing in engine repairs and all your other needs!


-Cassy Jennings

Our van's check engine light came on Friday evening. We planned to leave Sunday after church for vacation. So, Saturday morning I call up Northwest Automotive to see if they could fit me in. They said come on in. When I arrived, they ran the standard diagnostic test to find what tripped the light. It turned out to be an extremely simple fix, and they had me back on the road in 10 minutes, which was fantastic because I had two toddlers in tow. The best part? They charged me nothing! At dealerships, I've paid $50+ for them just to run this test.


-Eric Moquin

Great service and great guys that know what they're doing. And, they get it done fast and right!


-Justin Reed

Awesome work! These guys know automobiles and have all the professional tools to do any job, big or small. Take your vehicle in or give them a call. OUTSTANDING WORK!


-Troy Nussbaum
  • AERA (Automotive Engine Rebuilders Association)
  • ASE Certified - Automotive Service Excellence
  • BBB Accredited Business
  • NAPA AutoCare Center
  • Jasper Engines & Transmissions
  • Mobile Air Conditioning Society
  • WIX Filters
  • ALL-DATA
  • IDENTIFIX
  • UNOH Alumni - University of Northwestern Ohio
  • Defiance Ohio Police
  • Car Care Aware
  • Call Us For Service: 419-782-7827