How to identify a random car part that fell off
Random car parts found on the road or dropped from a vehicle can leave drivers unsure if their car is unsafe to drive or if they simply hit debris. Without knowing the part's name or function, vehicle owners struggle to figure out if it belongs to their car or an obstacle they ran over.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1Asking mechanics or car communities online by posting photos
- 2Testing vehicle movement by turning wheels or backing up slowly
- 3asking mechanics
- 4posting photos on online forums to identify unknown car components
- 5Searching multiple aftermarket websites or asking online communities to translate dealership part terminology.
- 6tracing the tube back to see where it connects
- 7inspecting the area near the wiring
- 8Posting photos on online mechanic forums to ask experts for help
- 9tucking the dangling wire back inside to hide it
- 10searching online forums to see if it is a standard unused harness for different trim options
- 11Using ChatGPT or AI to diagnose car parts
- 12Looking up parts diagrams online
- 13Asking for community opinions on Reddit
- 14Asking online forums for visual confirmation and part numbers from other owners
- 15Searching engine bay photos online to check factory design
- 16Asking mechanics or technicians on online forums
- 17Buying the entire assembly or column instead of individual components
- 18Asking online communities for part identification
- 19Posting photos and descriptions on online forums to ask mechanics or community members for identification
- 20asking online automotive communities for identification based on physical descriptions and position
- 21Posting photos to online mechanic communities for identification
- 22Browsing parts catalogs and repair manuals to match visual diagrams
- 23using a flat head to check size
- 24performing quick Google searches
In their words
Unedited, most upvoted first, each linked to the thread it came from.
“Can someone help me identify this part that just fell off of a friend’s car?”source ↗
“Is that a snarky comment because I should know the part? Sorry man, I don’t know cars which why I came here! You think if I knew I would take the time to post on Reddit!?”source ↗
“The car is a 2014 g37 infinti and it’s underneath on the back right passenger side and it’s snapped I don’t know what it is and is it a serious problem?”source ↗
“Have torn boots and look like they’ve been torn for a while. Need to look into replacing them, but I’m not sure what they are. I *think* the yellow circle is a tie rod? I’m not sure about the red. Picture taken of the front driver side.”source ↗
“2013 Lexus RX350, with like 180,000 miles, automatic. All of a sudden i heard scraping pulled over to find this, is it something i dislogeded by driving over a deep puddlie or did i manage to run over someone elses car part??”source ↗
“I got home to see if there was some damage, saw this tube hanging. Do anyone know what it is? It’s in the rear, on the driver side.”source ↗
“Trying to figure out what part of this brake assembly is what.”source ↗
“Can someone help me learn to identify where the pad is?”source ↗
“Hi i just notice a leak to my engine and it is from this part, can i be removed and replaced? What is it called?”source ↗
“I jsut move it over to see the leak but the main leak is in the metal pipe attach to the engine, mazda 2 engine by the way”source ↗
“No Ford part number on it, and the manufacturer isn't sure either.”source ↗
“Mainly trying to match the two plugs in the photo. A pic or part number from your original one would be a big help.”source ↗
“I need to replace this hose it’s leaking what is this part called ?”source ↗
“Let me know if anyone knows what this goes to or how to better troubleshoot and if I could fix myself.”source ↗
“Was changing my oil today and noticed this under the passenger side of the car. I couldn’t find where it came from.”source ↗
“What are these objects that appear to be old hose, found right next to the Coolant Radiator Fill Cap, on my 2001 Toyota Avalon?”source ↗
“They appear to be old hose, but they are so brittle, like porcelain, that if you try to bend them, they just crumble.”source ↗
“After a bit of research and chatGPT it brings me to needing to replace pipe hose and assembly. (PN 28250-3L112). Want more opinions before I start disconnecting and buying parts.”source ↗
“Dealership want hundreds just to pop the hood.”source ↗
“I’d prefer buying the OEM part needed, and just pay for labor. Rather than getting up-charged on every little thing.”source ↗
“2017 Honda CRV that my sister in law bought. I feel like it's an air intake, but I can't find any info on it”source ↗
“This piece looks loose or broken after the car was repaired after being hit on this side.”source ↗
“What is that piece called and is it dangerous to keep driving like this?”source ↗
“I have no idea what they're called on rock auto. The naming seems to be different on every site. Anyone know what the name is?”source ↗
“I photographed this motorcycle in my company and I’m trying to learn how to read the clues on it.”source ↗
“I don’t know the year, make, or model yet—that is what I’m trying to identify.”source ↗
“Could anyone help me deal with it？”source ↗
“I have a 2012 Ford Explorer and just wanted to see what this part was called so if anyone knows that would be great. Also would this be an easy part to replace by myself?”source ↗