Check engine light on?
Don't let anyone replace a part before the code has been read.
The light is not the problem. Not knowing whether you can keep driving is the problem, and that is answerable today.
What people usually describe
- Steady check-engine light, car drives normally
- Flashing check-engine light
- Light came on after a fill-up
- Light came on and the car feels down on power
- Light cleared itself and came back
- Failed emissions
Any of these is enough to start. You do not need to know which part it is — working that out is the job.
Before we quote you a part
A check-engine light is a pointer to a stored code, not a part. Guessing at one is how people buy parts they did not need.
We pull the codes and the freeze-frame data, then test the circuit the code points at. A P0420 is not a catalytic converter until something has proved it is.
This is not a policy someone can waive on a busy morning. It is the diagnostic gate in the engine, and it reads every message you send us — insisting does not move it.
The questions we'll ask you
Every one of these exists because getting it wrong means the part bolts on and the problem comes back. They take you ten seconds and save you a day.
Is the light steady or flashing?
A flashing check-engine light means active misfire and raw fuel going into the catalytic converter. That one is a stop-driving light, and we will tell you so on the phone.
Has anyone already read the codes?
A code from a parts-counter scanner is a starting point, not a diagnosis. We will take the number gladly and still verify it.
Did anything change just before it came on?
A fill-up, a car wash, a jump start or a recent repair narrows the search enormously and costs nothing to ask.
What's on it, and what isn't
On every estimate
- Parts and labor as separate lines, always
- More than one supplier option, with warranty and availability next to each price
- A core deposit shown as its own refundable line where one applies
- Freight passed through at cost, not marked up
- A dollar reason whenever we recommend something dearer than the cheapest option
Not on it
- Tax on labor. Georgia exempts separately stated repair labor, and ours is separately stated
- A price for a part nobody has tested yet
- An upsell we cannot justify in dollars
- A number that changes by more than 10% without coming back to you for approval
Estimates are given as a range rather than a fixed figure until a licensed labor-time guide is in place. We would rather say that plainly than quote a firm number the shop cannot stand behind.
Tell us what it's doing.
Thirty seconds. A person reads every one of these, and if it needs a look before anyone can price it, we will say so rather than guess.
Check engine light on — straight answers
The parts store read the code for free. Isn't that the same thing?
It is the first ten percent of it. A code names a circuit or a symptom the computer noticed — not the failed component. P0171 means the engine is running lean, and that can be a vacuum leak, a sensor, a fuel delivery problem or an exhaust leak. Replacing the part named in the code is the single most common way people spend money twice.
Can I keep driving it?
If the light is steady and the car drives normally, usually yes, for a short while. If it is flashing, no — that is active misfire, and continuing to drive it can turn a spark plug job into a catalytic converter job.
Will you charge me for the diagnosis if I get the repair done?
We tell you what the diagnostic costs before we start, and what it covers. We will not quietly fold an unquoted charge into the invoice — every line on a PartPilot estimate is its own row, including labor.
What if the light goes off before my appointment?
Come anyway if you can. The code usually stays stored even when the light clears, along with the conditions it happened under.
Other repairs we're asked about
Car won't start
We find the real reason before you spend a dollar on a part.
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The right amperage for your exact truck — verified before it's ordered.
Read more →Brakes making noise
Pads, rotors or calipers — we look before we quote, and front is not rear.
Read more →