Engine, Transmission & Diesel Repair in Davenport & Quad Cities
Complete Powertrain Repair You Can Trust
At Jack’s Brake & Alignment, we provide expert engine, transmission, and diesel repair services to keep your vehicle running strong. Our ASE-certified technicians diagnose and repair problems quickly and accurately for cars, SUVs, trucks, and fleet vehicles. With two convenient Davenport locations and Certified TechNet Service Centers, you can count on reliable service every time.
Signs You Need Engine or Transmission Repair
If you’re experiencing any of the following, it may be time to schedule service:
Check engine light is on
Engine running rough, misfiring, or losing power
Transmission slipping or hard shifting
Unusual noises from the engine or transmission
Fluid leaks under your vehicle
Decreased fuel efficiency or performance
These are some of the most common powertrain issues we diagnose for drivers across Davenport, Bettendorf, Moline, Rock Island, and the Quad Cities.
Check Engine Light On or Loss of Power?
If your check engine light is on or your vehicle feels sluggish, your engine may not be running efficiently. This can be caused by sensor issues, ignition problems, fuel system faults, or internal engine wear. Our team performs accurate diagnostics to identify the issue and recommend the right repair before it becomes more serious.
Transmission Slipping or Shifting Rough?
Transmission problems often show up as delayed shifting, slipping gears, or hard shifts. These issues can be caused by low or degraded fluid, worn internal components, or electronic control problems. Addressing transmission issues early can help prevent more expensive repairs or complete failure.
Engine Noises or Fluid Leaks?
Knocking, ticking, or grinding noises from your engine can indicate internal wear or lubrication issues. Fluid leaks—whether oil, transmission fluid, or coolant—can also signal problems that need immediate attention. Our technicians inspect and repair these issues to prevent further damage.
Complete Engine Repair Services in Davenport, IA
Your engine is the core of your vehicle’s performance. At Jack’s, we handle everything from diagnostics and minor repairs to major engine work. Our services include gasket replacement, timing components, fuel system repairs, and full engine rebuilds when necessary. We focus on restoring performance, reliability, and long-term engine health.
Transmission Repair & Service in Davenport & Quad Cities
A properly functioning transmission is critical for smooth driving. We provide complete transmission diagnostics, fluid services, repairs, and replacements to keep your vehicle shifting correctly. Whether you need routine service or a full rebuild, our team delivers honest recommendations and dependable results.
We proudly provide engine, transmission, and diesel repair services throughout Davenport, Bettendorf, Moline, Rock Island, and the entire Quad Cities area.
Diesel Vehicle Repair Services
Diesel vehicles require specialized knowledge and equipment. Our technicians provide diesel diagnostics, fuel system repairs, turbocharger service, and emissions-related repairs to keep your diesel truck or work vehicle operating efficiently. Fleet and commercial drivers rely on Jack’s for consistent, reliable diesel repair.
Why Choose Jack’s for Engine & Transmission Repair?
Engine and transmission problems require experience and precision. At Jack’s Brake & Alignment, our Davenport River Drive and Eastern Avenue locations are equipped with advanced diagnostic tools and ASE-certified technicians who understand complex powertrain systems. From check engine light diagnostics to major repairs, we help drivers get back on the road with confidence. With financing options and free towing on major repairs, Jack’s is the trusted choice for powertrain service in the Quad Cities.
Don’t Wait Until Small Engine Problems Become Major Repairs
Ignoring early warning signs can lead to costly damage or complete system failure. Diagnosing and repairing issues early helps protect your vehicle, improve performance, and avoid breakdowns.
Visit Our Davenport Locations
2160 West River Drive, Davenport, IA 52802
563-323-5554
Mon–Fri: 7:30am–5:00pm
3636 Eastern Avenue, Davenport, IA 52807
563-322-8354
Mon–Fri: 7:30am–5:00pm
Engine, Transmission & Diesel Repair FAQs
Can I still drive with the check engine light on?
In some cases, you can continue driving for a short time, but it depends on the issue. If the light is flashing or your vehicle is running poorly, it’s best to stop driving and have it inspected immediately to prevent further damage.
How much does engine repair cost in Davenport, IA?
Engine repair costs vary depending on the issue, ranging from minor fixes to major repairs. We perform a full diagnostic first and provide clear recommendations and pricing before any work begins.
What are common diesel engine problems?
Diesel engines can experience issues with fuel injectors, turbochargers, emissions systems, and glow plugs. Regular maintenance and early diagnostics help keep diesel vehicles running efficiently.
What does it mean if my check engine light is on?
A check engine light can indicate a wide range of issues, from minor sensor problems to more serious engine or emissions system faults. The best way to know for sure is to have a professional diagnostic performed to identify the exact cause.
How much does transmission repair cost?
Transmission repair costs depend on the severity of the issue. Fluid services and minor repairs are more affordable, while major repairs or rebuilds require a larger investment. We provide honest assessments and upfront pricing.
Is it better to repair or replace an engine or transmission?
This depends on the condition of your vehicle and the extent of the damage. In some cases, repairs are the most cost-effective option, while in others, replacement may be the better long-term solution. We help you evaluate the best option for your situation.
What are the signs of a failing transmission?
Common signs include slipping gears, delayed shifting, rough or hard shifts, unusual noises, or fluid leaks. If you notice any of these issues, it’s important to have your transmission checked as soon as possible.
What causes a car to lose power while driving?
Loss of power can be caused by fuel system issues, ignition problems, sensor failures, or internal engine wear. A proper diagnostic helps pinpoint the exact cause and prevent further damage.
How long does engine or transmission repair take?
Repair time varies depending on the problem. Minor repairs may be completed the same day, while more complex engine or transmission work can take several days.
Ready for Reliable Auto Repair?
From routine maintenance to complex repairs, Jack’s Brake & Alignment is your Davenport auto repair shop. Book your service today and get back on the road with confidence.