What a Quick Walk-Around at the Auction Yard Can't Tell You
A quick yard walk-around can't show how a car runs, its frame, flood damage, or wiring. Here's what to check before you bid.

The aluminum-body F-150 is America's best-selling truck and an auction staple. EcoBoost cam phasers, the 10-speed transmission, aluminum body repairs, and what to price in.
The 13th-generation F-150 (2015–2020) is the best-selling truck in America, which means there are always a lot of them at auction. It's a great flip, as long as you know where this generation hurts.
The most talked-about issue on the 3.5L EcoBoost V6 is a cold-start rattle from the cam phasers and timing chain.
Other EcoBoost notes: carbon buildup on intake valves and intercooler condensation (a stumble or misfire under heavy throttle in humid weather) are known on early EcoBoosts.
The 10-speed gets complaints about harsh, clunky or delayed shifts. Many are improved by software updates and a relearn; some trucks need internal repairs. A class action suit was filed in 2023 over these transmissions.
2015–2016 trucks use the older 6-speed, generally considered solid.
The 2015 F-150 switched to an aluminum body. That matters for collision repair:
The 5.0 "Coyote" V8 is a favorite. Watch for oil consumption complaints on some later trucks. The 2.7L EcoBoost and 3.3L/3.5L naturally aspirated engines are also common at auction.
Airbags, frame horns on front hits, rust on brake lines (salt-belt trucks), 4x4 system, keys, title type and odometer status. See how to read a Copart listing.
F-150 values vary a lot by trim (XL to Platinum and Raptor), cab, bed and engine. Price the exact configuration fixed, subtract parts, a cam-phaser reserve on a rattling 3.5, a transmission reserve on a harsh-shifting 10-speed, fees, transport and profit. And remember half the room is bidding on F-150s too; set your number and stick to it.
Photo: '15-'17 Ford F-150 Crew Cab by Bull-Doser, Public domain.