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 Appointment Only
  • Sun Closed
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419-782-7827 | 1735 Spruce St Defiance, OH 43512

Heavy Duty Services: Engine Overhaul & Replacement

For the big jobs, take your vehicle to Northwest Automotive LLC! Our expert services are ideal whether you have a late model import or newer domestic vehicle. And because we guarantee the work we perform, you can rest assured you are receiving the highest quality engine overhaul and replacement services in the Defiance, OH 43512 area.

Our heavy duty services include:

Authorized Jasper Dealer
Give Your Vehicle a New Lease on Life with JASPER. That big oil slick in your driveway or those strange noises from under your hood don't have to mean you'll be saddled with a new car payment soon. Instead, your trusted installer at Northwest Automotive LLC can drop in a completely remanufactured JASPER gas or diesel engine, transmission or differential and get you back on the road again quickly! Call Northwest Automotive LLC at 419-782-7827 to schedule an appointment. Proudly remanufactured in the U.S.A.

Cylinder Block
A cylinder block is the powerhouse for the motor vehicle. The solid cast car part houses the cylinders and their components (gaskets, valves, and seals) inside a lubricated and cooled crankcase. Since it is one of the most important parts of your car, the block is designed to be extremely strong and sturdy. Although strong and sturdy, the block is susceptible to failure resulting in a vehicle that won't start. Cracked blocks, porous blocks, core plug, or freeze plug failure are some of the problems facing cylinder blocks. Call 419-782-7827 to talk to the mechanics of Northwest Automotive LLC about your cylinder block problems.

Cylinder Head
A cylinder head is the closed end of a cylinder (located in a car's engine block). It sits above the cylinder block, closing the top of the cylinder and forming the combustion chamber. The cylinder head coordinates airflow in and out of the engine. Since the cylinder head's chief function is to seal the cylinders properly, insufficient compression results in the car being difficult to drive. To have your cylinder head checked and repaired, talk to Northwest Automotive LLC's cylinder head repair and reconditioning specialists today.

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.

Engine Maintenance
Any car part manufacturer will tell you that preventive maintenance is critical to the part's lifespan. Like other auto parts, car engines aren't built to last forever. However, you can increase the engine's lifespan by performing regular preventive maintenance. The easiest way to maintain peak performance and fuel economy is to provide regular engine maintenance for your vehicle. To have your engine maintained by experts, visit Northwest Automotive LLC.

Engine Repair
When your vehicle shows any sign of trouble, bring it to Northwest Automotive LLC for full-service engine repair in Defiance, OH. From diagnostic check engine light repair to precision engine part repair, our expert auto mechanics are ready to help you.

Engine Repair and Rebuild
After years of use, your car's engine inevitably deteriorates. If your car needs a new engine and you are not ready to invest in a new car, consider having the engine rebuilt. This involves replacing or resurfacing all the rundown parts in an engine. Regardless of your engine replacement needs, Northwest Automotive LLC has experienced engine rebuilders ready to assist you.

Engine Replacement
The engine converts energy into useful mechanical motion. This amazing machine is what keeps your vehicle moving. Although generally reliable, a car engine is susceptible to damage and breakdown. When this happens, do not sit and stress over it. Take action. Take the vehicle to a mechanic for an engine replacement. Bring it to Northwest Automotive LLC. Visit us at 1735 Spruce St for quality engine replacement services.

Timing Belt
A timing belt is a part of your car's internal combustion engine. The belt synchronizes the camshaft and the crankshaft rotation so that the engine valves open and close at the correct timings. Also, the belt prevents the piston from striking the valves in an interference engine. A timing belt is a rubber belt that usually features teeth on the inside surface, while a timing chain is a metal roller chain. Most cars we drive now have timing belts instead of timing chains and gears. Although different manufacturers have their recommended mileage, you need to have your car's timing belt checked regularly. To have it checked by experts, contact Northwest Automotive LLC today.

Transmission Flush
Although most manufacturers recommend a transmission flush every 30,000 miles or every two years, some symptoms may indicate that you need a transmission flush sooner. Some of the symptoms that indicate that your car needs a transmission flush sooner are: transmission grinding or strange noises, problems shifting gears, slipping gears, surging of the car, and delay in vehicle movement. Flushing the used fluid from the transmission washes away tiny particles of dirt, clutch material, and metal shavings. For all your transmission flush needs, call 419-782-7827 or visit Northwest Automotive LLC today - we are transmission experts.

Transmission Maintenance
Any car part manufacturer will tell you that preventive maintenance is critical to the part's lifespan. Like other auto parts, car transmissions aren't built to last forever. However, you can increase the transmission's lifespan by performing regular preventive maintenance. The easiest way to maintain peak performance and fuel economy is to provide regular transmission maintenance for your vehicle. To have your transmission maintained by experts, visit Northwest Automotive LLC.

Transmission Repair
Our services include transmission repair on both manual and automatic transmissions. The first step in getting you back on the road is assessing your transmission to accurately determine the source of the problem. In some cases, we are able to repair your transmission simply with adjustments, replacing external seals, or replacing accessible parts. To have this done by specialists, call 419-782-7827 to talk to the mechanics of Northwest Automotive LLC today.

Transmission Repair and Rebuild
When it comes to automatic transmission repair, there are several options: buying a new one, buying a remanufactured one or having yours rebuilt. Each of the above options has its own share of advantages and disadvantages. Of the three options, rebuilt transmissions are the most economical. A rebuilt transmission involves removing the transmission from the car, disassembling it, replacing worn out parts, reassembling it, and then reinstalling it. To have this done by specialists, call 419-782-7827 to talk to the mechanics of Northwest Automotive LLC today.

Transmission Replacement
In motor vehicles, the transmission usually refers to the gear box, which uses gears and gear trains to transmit speed and torque from a rotating power source to another device. You can have your car's transmission replaced with a new, rebuilt, remanufactured, repaired or used transmission. For more information contact Northwest Automotive LLC in Defiance, OH. Our experienced service technicians can help you make the best decision for your vehicle and your wallet.



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


Request Quote


03/03/2021

I've had a 74 Formula for a few years and it never ran right. Northwest Automotive diagnosed a bad cam and rebuilt the engine. It runs stronger than I could have imagined! They did a great job. They're going to do more work for me soon. Now I know who to call to get things done right.


NAPA Service Assistant


What Our Customers Are Saying

Very happy with the service!!! They came and picked my truck up, repaired my tire, and brought my truck back to me within time frame they stated. Today my tire went low, they worked on my truck immediately. Would recommend them to anyone, they are very friendly and accommodating. 5 star rating from me!!!!

, 12/16/2021

Awesome shop!! Not only was the estimate the lowest I received, the entire exhaust system was replaced (headers on back), the work was completed in under 2 hours. I m a U.S.Army Veteran and my car had a misfire situation going on due to bad coil pack, well Tim & his guys found me a coil pack and put it on NO CHARGE!! I would recommend this shop to any & everyone!

, 10/13/2021

reviewicon

Tim and the guys do great work here and are honest I definitely recommend these guys for any repairs

, 09/28/2021
I have a 2011 Jeep Liberty, the A/C stopped working, so I called up Tim and told him. He said can you bring it in today at 1:00pm? I said yes. So I took it in, they found that all the Freon was out of the unit. So they put more Freon in plus added some dye to find if the system may have a leak. So I paid the bill. Tim said, if you have any further problems bring it back. So the next day I started my Jeep up. The A/C stop working. So I called them back on Saturday. Can you bring it back on Monday at 2:00pm? I replied yes. Returned back to Northwest Automotive. They took my jeep in and recharged the A/C unit, and checked the system for any possible leaks. So Tim filled me in on no signs of dye so go ahead drive it and if any further problems bring it back. So how much money do I owe you? He replied nothing. The next day I drove my Jeep the A/C stop working again. So I called them back and told them. Can you drop it off so we can get to work on it Monday morning. I said yes. So I called them up Monday around noon and asked how are things going with my jeep? He replied that we believe we have found the leak. So he asked you said when it would set over night that the next day it not work? I replied yes. He asked if you don't need your Jeep back today, we will let it set overnight and check and see if it is still working in the morning. So I replied yes. I called them back the next day and asked how are things going with my jeep? Tim replied it is working fine. He asked if I would pick it up later today, l said that is fine because I will not be in town till around 3:30pm. Because I was at work. So went to pick up my Jeep. Tim said I believe the problem was from the low pressure valve. It should be alright. I replied so how much do I owe you. He said nothing, if you have any further problems bring it back. I believe he is a fair and honest person. I will respect that and I will bring him some more business. Thanks again.

, 07/16/2021

Northwest Automotive didn't charge me to look over my Geo Traker, even though I didn't end up having anything done to it. Will be going back to them.

, 04/26/2021

reviewiconLeaf Springs
Undercar Services, near Defiance, OH

Northwest Automotive did it right again. Out read leaf springs on the Firebird and the stance was back where it's supposed to be! Very good job again! Thanks!

, 03/12/2021
  • 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