Used Car Pre-Purchase Inspection Checklist: What to Check Before You Buy in Austin

The Austin used car market is brutal right now. Inventory is tight, prices are inflated, and dealers know buyers feel rushed. That's exactly the environment where shady sellers move the cars with problems.

A pre-purchase inspection (PPI) is the single best money you can spend on a used car. Here's the checklist we run on every PPI at our Austin and Round Rock shops — use it yourself, or hire us to do it properly.

Why you can't trust the test drive

A 15-minute test drive will tell you if a car runs. It will not tell you:

• Whether the head gasket is seeping coolant
• Whether the timing chain has stretched
• Whether the transmission is one shift away from disaster
• Whether the frame has been bent and repaired
• Whether the airbags have been deployed and replaced with bad ones
• Whether the title is clean (Carfax misses a lot)

These are the kinds of problems that turn a $15,000 used car into a $25,000 car after you fix it.

The exterior walkaround (10 minutes, free)

Before you even start the engine:

• Panel gaps. Even, consistent gaps around the hood, doors, and trunk. Uneven = bodywork or collision.
• Paint color match. Open all doors and check the doorjambs. Color differences mean repainting.
• Overspray on rubber trim, window seals, or wheel wells. Sign of a respray.
• Headlight clarity. Foggy headlights = old car. One foggy and one clear = one was replaced (often after a front-end hit).
• Tire wear. Uneven wear front-to-back is normal. Cupping or inside-edge wear = alignment or suspension problems.
• Tire age. DOT code on the sidewall. Tires over 6 years old need replacement regardless of tread.
• Glass. "FORD" should be written on every piece of factory Ford glass. Mismatched manufacturer = replaced glass = something hit it.

The undercarriage (this is where the truth lives)

This is the part you can't do without a lift. The undercarriage tells the real story of a vehicle's life:

• Frame rails. Look for kinks, weld marks, or "frame straightening" stickers
• Rust. Surface rust is fine. Flaking, scaling rust on frame components is not.
• Wet spots. Oil leaks at the valve cover, oil pan, rear main seal, transmission pan, transfer case, differentials
• Coolant trails. Pink, green, or orange residue near the water pump, thermostat housing, or radiator
• CV boot tears. Torn rubber = $200–$400 per axle
• Exhaust. Aftermarket exhaust on a non-performance car often signals catalytic converter theft (Austin has had a wave of this)

If a seller refuses to let you put the car on a lift, walk away. They're hiding something.

Under the hood

• Oil. Pull the dipstick. Honey or light brown = healthy. Black is normal-ish. Milkshake-colored = coolant in the oil = blown head gasket = walk away.
• Coolant. Look in the overflow reservoir. Should be clean pink/green/orange. Rust-colored or oily film = problems.
• Transmission fluid (where checkable). Should be bright red and not smell burnt. Brown or burnt smell = trans on its way out.
• Belts and hoses. Cracks, glazing, soft spots
• Aftermarket wiring. Especially behind the dash. Often a sign of bypassed problems or aftermarket alarms/remote starts that cause electrical issues
• Battery date. Sticker on the side. Battery older than 3 years in Austin needs replacing soon.

The OBD-II scan (15 seconds, $20 scanner)

Plug a cheap scanner into the OBD port (under the dash) and check:

• Stored codes. Even if no check engine light is on
• Pending codes. Issues that haven't triggered the light yet
• Readiness monitors. All 8 monitors should be "ready." If they were recently cleared, the seller may have wiped a check engine light just before the test drive. Major red flag.

This is the single move that exposes the most dishonest sellers.

The test drive (do it right)

• Start cold. Listen for ticking, knocking, smoke from the exhaust on first start.
• Drive both highway and stop-and-go.
• Hard braking. Pulling, vibration, noises.
• All gears. Every forward gear, reverse, every transmission mode.
• AC on max, then heat on max. Both should work in less than 60 seconds.
• Right turns at parking lot speed. Clicking = bad CV joints.
• Foot off the wheel on a flat road. Should track straight.

The paperwork

• Title in seller's name (not a salvage, rebuilt, or "parts only" title)
• Carfax AND AutoCheck. Run both — they catch different things.
• Service records. Three or more years of records is a green flag.
• No active recalls. Check at nhtsa.gov by VIN.

When to walk away (red flags)

• Seller won't let you take it to a shop
• Multiple owners in a short span (often dealer flipping or quick resale of a problem car)
• Cash-only, no test drive, "trust me bro" energy
• Recently cleared codes
• Mileage on title doesn't match dashboard (odometer rollback)
• Salvage or rebuilt title (occasionally fine, but adjust price by 30–50% and expect insurance hassles)

What a professional PPI gives you that a checklist doesn't

We charge $175–$250 for a pre-purchase inspection depending on vehicle complexity. For that you get:

• A 150-point inspection on a lift
• An OEM scan tool reading every system, not just engine codes
• Compression test on request
• Written report with photos
• A clear buy / negotiate / walk away recommendation
• Honest dollar estimate for any deferred maintenance we find

Customers who skip the PPI to "save money" routinely spend thousands more in the first year. Customers who get one often use our report to negotiate $1,000–$3,000 off the price — or walk away from a car that would have eaten them alive.

Bottom line

If you're spending $10,000 or more on a used car, spending $200 on an inspection is the cheapest insurance policy you'll ever buy. We do PPIs at both our Austin and Round Rock locations — usually same-day if you call ahead.

Schedule a pre-purchase inspection at our Austin or Round Rock shop or call us with the listing and we'll tell you whether it's even worth a look.