Diagnostics & Tune-Ups · Chicago, IL
Spark Plug Replacement in Chicago
Spark plugs ignite the air-fuel mixture in gasoline engines. Worn or fouled plugs can contribute to poor running, but a misfire may also involve ignition coils, fuel delivery or mechanical condition. Correct plug specifications and installation are important.
- 4.9 on Google (339 reviews)
- Mon–Sat 9 AM–6 PM
- 59th & Ashland, Chicago
Spark Plug Replacement in Chicago — related services
What spark plug replacement involves
Service may involve removing engine covers or other components to reach the plugs. The shop can consider plug condition, manufacturer replacement guidance and the vehicle's symptoms. Discuss whether additional diagnosis is needed if a warning light or persistent misfire is present.
Signs you may need spark plug replacement
- Spark plug maintenance due
- Rough engine operation
- A diagnosed worn or fouled plug
Posted prices · 5901 S Ashland Ave
Spark Plug Replacement prices in Chicago
Tune-up prices — 4-cylinder
Parts and labor included.
| Service | Price |
|---|---|
| Basic tune-up: spark plugs | $160 |
| Standard tune-up: spark plugs + engine air filter | $190 |
| Full tune-up: spark plugs, engine & cabin air filters, oil change, throttle body cleaning | $260 |
Tune-up prices — 6-cylinder
Parts and labor included.
| Service | Price |
|---|---|
| Basic tune-up: spark plugs | $220 |
| Standard tune-up: spark plugs + engine air filter | $250 |
| Full tune-up: spark plugs, engine & cabin air filters, oil change, throttle body cleaning | $320 |
Prices are the shop’s posted prices in US dollars. Oil change prices are plus tax. Card and app payment fees are listed under payment methods. See the full price list.
How spark plug replacement works at our shop
Call & describe
Share your vehicle details and the concern.
Inspect
A technician checks the related components.
Approve
You get an explanation and estimate before work.
Reasons to ask about this service
These are possible reasons to request an evaluation, rather than a diagnosis for your vehicle.
Plan your visit
Call with your vehicle year, make, model and service history. Describe when the concern happens and whether a warning light is present. Ask about current availability and a vehicle-specific estimate. The proposed work and any additional findings should be discussed before you authorize a repair.
South Side auto repair
Auto repair & oil change in Chicago, close to home
Chicago Express Auto Service is a neighborhood auto repair shop at 5901 South Ashland Avenue, serving drivers from West Englewood, Back of the Yards, New City, Gage Park, Chicago Lawn and the Midway area. Stop in for an oil change, brake repair, battery replacement, tune-up or check engine light diagnostics — walk-ins welcome Monday–Saturday, 9 AM–6 PM.
- Oil change near meQuick oil changes with the oil grade your engine specifies, new filter and a fluid check.
- Brake shop on AshlandBrake inspections, pads, rotors, drums and brake fluid service for cars, SUVs and trucks.
- Auto tune up serviceSpark plugs, ignition coils, filters and fuel system cleaning to restore smooth running.
- Transmission fluid changeTransmission and differential fluid service using the correct specification.
- Check engine light diagnosticsComputer scans and testing so repairs match the real cause.
- Battery & alternator testingBattery, starter and charging system tests before Chicago winter hits.
Spark Plug Replacement FAQs
Are spark plugs and ignition coils replaced together?
Not automatically. They are different components. An inspection, service interval or diagnostic finding should guide whether one or both require attention.
How do I ask about spark plug replacement in Chicago?
Call (708) 994-9713 with your vehicle year, make, model and a description of the concern. Chicago Express Auto Service is at 5901 South Ashland Avenue, Chicago, IL 60636-1708. Ask about availability, the proposed scope and a vehicle-specific estimate.
Other diagnostics & tune-ups services
Diagnostic Computer Scan
A dashboard warning light is a starting point for investigation. A diagnostic computer scan retrieves available trouble codes from supported vehicle systems. A code describes a detected condition; it does not by itself prove that a particular sensor or part has failed.
Learn moreFuel System Cleaning
Fuel system cleaning is a maintenance option for certain deposit-related concerns. Whether it is appropriate depends on the engine design, service history and symptoms. It should not replace diagnosis of a persistent misfire, a warning light or a suspected fuel delivery failure.
Learn moreIgnition Coil Replacement
Ignition coils provide the voltage used by spark plugs on gasoline engines. A faulty coil can contribute to a misfire, but similar symptoms can come from plugs, injectors, wiring or mechanical problems. Diagnosis should guide replacement.
Learn moreValve Cover Gasket Repair
A valve cover gasket seals the joint between the valve cover and the cylinder head. A worn seal can allow engine oil to escape. The repair addresses a confirmed leak at that joint; it does not restore compression or correct every engine oil leak.
Learn moreCustomer feedback
What drivers say
“Exchanged oil plus added coolant and wiper fluid. Inspected tires as well! Close to my house and good fixed prices. Very kind and attentive. Will def come again.”
LeeKiseokGoogle review · Mar 2025“They give me a good experience every time I come there to get a oil change they’re pretty professional. They do what need to be done and they get the job done. And they don’t mind doing extra stuff if they can.”
Joshua GreerGoogle review · Mar 2025“they do a good job here less waiting for you’re not waiting all the time they do good work and I like every six times you get a free oil change that’s good”
Maurice MitchellGoogle review · Mar 2025Full service menu
More auto services in Chicago
Chicago Express Auto Service
Talk to the shop about your vehicle.
Oil changes, brake repair, battery testing, check engine diagnostics and suspension work at 5901 South Ashland Avenue. Monday–Saturday, 9 AM–6 PM.