Tune Up at Johnny's Automotive
Nobody sets points or adjusts a carburetor anymore. Tell us the symptom or the mileage, and we will tell you what a tune-up actually means for your engine.
What does a tune-up even mean on a modern engine?
A tune-up used to be a specific list of jobs: points, condenser, cap and rotor, carburetor adjustment, timing set with a light and an ear. Those parts are gone. Your engine is managed by a computer that adjusts fuel and spark timing thousands of times a minute, and it does not slowly fall out of adjustment the way an old one did. The word survived. The work behind it changed completely.
What a modern tune-up actually is. On most vehicles it comes down to a short list. Spark plugs, when the manufacturer schedules them. Engine air filter and cabin air filter. Fuel filter on the vehicles that still have a serviceable one. Throttle body cleaning where carbon has built up enough to affect how it idles. And above all of that, inspection and testing: scanning for stored and pending codes, reading fuel trims, checking ignition coils, and looking at what the sensors are actually reporting.
Testing comes first because the same phrase means two different things. A car at 90,000 miles that runs fine needs scheduled maintenance. That same car with a rough idle and a check engine light needs a diagnosis, and handing it a parts list instead would be guessing with your money.
Tell us the symptom or the mileage. Either one is a good starting point. If it is mileage, our ASE certified techs will pull the maintenance schedule for your exact year and engine and tell you what is due, including the things that are not due yet. If it is a symptom, describe it in plain words: rough at a stop, hesitates on the highway, harder to start cold, drinking more gas than it used to.
We test before we recommend, and we send photos of what we find to your phone so you are looking at the same thing we are. Spark plugs get a page of their own, since on a lot of engines they are a job all by themselves.
Tune Up in our service areas
1 recent job across 1 city by our technicians.
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Problems we fix
Our experts diagnose and resolve any issue.
It idles rough sitting at a stoplight
A shaky idle can come from ignition, air, fuel, or a vacuum leak. Testing separates those quickly, which is the difference between fixing it and replacing parts until it stops.
It hesitates when I get on the gas
Hesitation under load usually means the engine is not getting the spark or the fuel it is asking for right then. We can see that in the live data rather than guessing at it.
My gas mileage is worse than it used to be
Mileage drifts down for a lot of ordinary reasons, from a clogged air filter to lazy sensors to tire pressure. We start by measuring instead of assuming it is the expensive one.
It cranks longer than it should on cool mornings
Hard starting when the engine is cold points in a few specific directions, and most of them are testable in the parking lot before we ever open anything up.
I hit a big mileage number and don't know what is due
Bring it in and we will pull the factory schedule for your vehicle and go through it line by line, including what you can safely leave alone this visit.
Someone told me I need a full tune-up
Ask what that includes. On a modern engine there is no universal package, so we build the list off your maintenance schedule and what the testing shows, then explain why each item is on it.
More preventive maintenance services
Explore our other preventive maintenance services.
Oil Change
Keep your engine protected with conventional or synthetic oil changes using quality filters. Fast service, no appointment needed.
Learn moreAuto Filter Replacement
Clean filters protect your engine, cabin air, and fuel system. We replace all filter types using OEM-quality parts.
Learn moreFluid Services
Keep your vehicle running smoothly with transmission, coolant, brake, and power steering fluid flushes and top-offs.
Learn moreTune Up questions, answered
Common questions about our tune up services.
What is included in a tune-up at your shops?
It depends on your vehicle, which is the honest answer rather than a dodge. We start from the factory maintenance schedule for your year and engine, add what testing shows, and give you the list before we touch anything. Two cars with the same mileage can need very different work.
Does my car need a tune-up if nothing feels wrong?
Scheduled maintenance is worth doing on time even when the car feels perfect, because filters and plugs wear gradually enough that you adapt without noticing. What you do not need is a package of parts added on top of that schedule. If nothing is due and nothing tests badly, we will tell you so.
Will a tune-up turn off my check engine light?
Not reliably, and we would not sell it to you that way. A lit check engine light means the computer stored a specific fault, and that fault deserves a diagnosis before anyone spends money on parts. Sometimes the fix is maintenance, and sometimes it is a repair that maintenance would never have touched.
How often should the engine air filter be replaced?
Your manual gives an interval, and dusty roads, grove work, and heavy pollen seasons can shorten it. It is easy to check visually, so we look every time the car is in and only recommend it when it is actually dirty.
Does every car need the throttle body cleaned?
No. It helps when carbon has built up enough to affect idle quality or throttle response, and it does nothing measurable when the throttle body is already clean. We look at it before recommending it, and that is a separate thing from cleaning your fuel injectors.
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