Why do a tune-up
A tune-up is preventive maintenance for the ignition and intake side of the engine. Done on schedule, it gives you a smoother idle, steadier fuel economy, and a misfire caught before it damages the catalytic converter.
We bring that work to your driveway. You buy the plugs and filters at retail, and we install the items that are due for a flat labor fee quoted up front.
Simple vs in-depth
A simple tune up is spark plugs and the engine air filter, plus the cabin filter when it is accessible. That covers what most late-model cars need at a tune-up interval.
An in-depth tune up is still driveway work and adds items such as ignition coils or wires, throttle-body or MAF cleaning, a PCV valve, or a failed oxygen or mass-airflow sensor. We quote those after inspecting the engine, and we recommend them when the condition of the part or the service interval calls for it.
What we do in the driveway
These are the items we book as a tune-up when the car needs them.
- Spark plugs — fresh plugs for a strong spark and even combustion
- Air filter — clean intake air for consistent fuel trim and power
- Fuel filter — on engines that still have a serviceable filter
- Ignition inspection — coils, boots, and a scan of misfire history
- Throttle-body cleaning — removes the carbon that makes idle hunt
- MAF cleaning — when the sensor is dirty but still reading correctly
- PCV valve — when it is clogged or at its interval
- Oxygen or MAF sensor replacement — when testing confirms the part has failed
- Idle check — we confirm the engine settles before we leave
What we inspect and report, rather than include
Timing belts, tire rotation, transmission fluid, distributor components, and full cooling or exhaust work are separate services. Some of them need a lift, so they are priced on their own rather than folded into a tune up.
If we notice a cracked belt, discolored coolant, or a fluid leak during the visit, we tell you what we found and point you to the right service — or to a shop when the job needs equipment we do not carry. Older engines with a distributor get a look at the cap and rotor; coil-on-plug engines do not have those parts.
How a Road Wrencher tune-up works
We start with the engine family and the manufacturer maintenance schedule.
- Step 1: We diagnose it. Codes, idle quality, plug condition, and which filters are due.
- Step 2: The exact shopping list. Plugs, filters, and any additional parts that engine needs.
- Step 3: Flat-rate install. We fit the parts, reset what the service requires, and confirm a clean idle before we leave.