Before you buy a used car, scan it for codes, check that emissions monitors are ready, test the battery and charging system, check the lights and ask for a current smog certificate. These checks reveal problems the test drive misses.
Key takeaways
- Scan for codes.
- Check monitors.
- Ask about smog.
Codes and monitors
A seller who just cleared codes may hide a problem. Monitors not ready can signal a recent reset.
Battery and charging
A weak battery or alternator is a quick negotiating point.
Lights and electrical
Test every light, window, lock and switch.
Smog status
In California the seller usually provides a smog certificate. Ask for it.
Get a professional look
Ask us what an inspection can include.
Walk-around checks you can do
Look for uneven panel gaps, mismatched paint and overspray. Check the tires for uneven wear. Check under the hood for fresh fluid stains and for clean spots that suggest a recent wash to hide leaks. Test the A/C, all windows and every light. These checks take ten minutes and reveal many problems before you pay for a professional look.
What a professional adds
A shop can scan for stored and pending codes, check readiness monitors, test the battery and charging system, inspect brakes and suspension on a lift and look for leaks. A professional also knows the weak points of specific models. That knowledge helps you negotiate or walk away. A short inspection costs far less than an unexpected repair.
Need help in south Bakersfield?
Questions about check engine light? Read our Check Engine Light page, call (661) 599-9098 or request a time. Peña's Auto Electric, Smog & Repair, 303 Taft Hwy, Suite B, Bakersfield, CA 93307. Mon to Fri 9:30 AM to 5:30 PM, Sat 8 AM to 1 PM.
Frequently asked questions
Why check monitors?
Not ready can mean a recent reset.
Should I buy a car that failed smog?
Know the repair cost first.
Can you inspect a car?
Call us to discuss.
What about the title?
Check it separately.
Related reading
Sources
- California DMV, Smog certification and registration renewal