What we check on a pre-purchase inspection

Engine, fluids, and what is leaking

We start cold where we can, because a cold start tells you things a warm one hides: knocking that quiets once the oil is up, smoke on the first firing, a rough idle that smooths out after a minute.

Oil condition and level, coolant condition and level, transmission fluid where the car has a dipstick for it, brake fluid, and power steering. Then the leaks, which is where used cars tell the truth. We look at the valve cover gaskets, the oil pan, the front and rear main seals, the timing cover, the water pump, the radiator and hoses, and the ground under where the car has been parked.

We check the belts and the tensioner, the condition of the mounts, and whether anything has been recently steam-cleaned, since a suspiciously spotless engine bay on an otherwise average car is usually hiding a leak rather than showing pride of ownership.

Transmission, drivetrain, and the road test

The road test is not a formality. A great deal of what makes a used car a bad buy only shows up moving.

We check that the transmission shifts cleanly through the range, up and down, without flaring, slipping, or hunting between gears. On an automatic, we watch how it behaves cold versus warm. On a manual, we check the clutch bite point and whether it slips under load. We listen for driveline noise, check for vibration at speed, and feel for anything from the wheel bearings and CV joints.

We also check how the car tracks and whether it pulls, how it behaves under braking, and whether the steering has play in it. On all-wheel-drive cars we look for the specific noises that mean an expensive differential or transfer case conversation later.

Suspension, steering, brakes, and tires

Suspension gets checked for worn bushings, leaking or blown shocks and struts, tired springs, and play in the ball joints and tie rod ends. These are the items that quietly turn into a four-figure bill a few months after purchase.

Brakes: pad thickness at each corner, rotor thickness and condition, caliper movement, flexible hose condition, and fluid state. We tell you roughly how much life is left rather than just whether they pass.

Tires matter more than people expect, and not only for the tread depth. Uneven wear across a tire tells you about alignment and worn suspension. Different brands or ages on the same axle, or a car with four nearly new budget tires on it, is often a sign of someone covering something up rather than looking after it. We check the date codes too, since tires age out regardless of tread.

Electrical, charging, and the scan

We bring bi-directional, factory-level scan tools to the car and read every module, engine through airbags, along with stored codes, pending codes, and the freeze-frame snapshot the car saved when a fault triggered.

Pending codes are the useful part here. A seller who cleared the codes the morning you came to see it clears the stored ones, but the readiness monitors reset with them, and a car showing "not ready" on several monitors an hour into a test drive is a car whose codes were cleared very recently. That is worth knowing before you hand over money.

We also test the battery and charging system, check that every light, window, lock, and accessory works, and confirm the air conditioning actually blows cold rather than merely blowing.

Body, frame, rust, and accident history

We look for the physical evidence of a repair rather than relying on a history report, because plenty of accidents never get reported.

Panel gaps that do not match side to side, paint that differs in texture or shade under good light, overspray on trim and rubber seals, and paint depth that jumps in one area. Underneath, we look at the frame rails and subframe for kinks, wrinkles, or fresh undercoating in one specific spot, along with bolts that have been turned on suspension and body panels.

Rust is a New York question specifically. Road salt goes after the rear wheel arches, the rocker panels, the subframe mounts, and the brake and fuel lines. Surface rust on a ten-year-old car here is normal. Structural rust or flaking brake lines is a reason to walk, and we will tell you which one you are looking at.

What you actually get, and what we cannot see

You get a straight rundown of everything found, with a ballpark for what the needed repairs would cost, so the negotiation is numbers instead of feelings.

We are also honest about the limits. Without a lift we cannot get the same view of the underside that a shop hoist gives, though we do get the car up on stands and inspect underneath. We cannot see inside a sealed transmission or predict a component that is fine today and fails next month. And we cannot tell you what the car was worth to someone else, only what it needs.

What the inspection is very good at is catching the expensive, structural, and deliberately hidden problems, which is where the money actually is. Since we drive to the car, you can vet a listing across town without asking the seller to bring it anywhere, which they never want to do anyway.

Common questions