Price
Call for price
Hours
Open Mon–Sat
Station type
Test Only
El Guero Smog Check is a STAR certified test-only smog check station at 15664 Slover Ave, Fontana, CA 92335. Open Mon–Sat.
Hours
- Monday
- 9 AM – 5 PM
- Tuesday
- 9 AM – 5 PM
- Wednesday
- 9 AM – 5 PM
- Thursday
- 9 AM – 5 PM
- Friday
- 9 AM – 5 PM
- Saturday
- 9 AM – 4 PM
- Sunday
- Closed
Hours from public business listings. Call to confirm before you go.
What to expect at El Guero Smog Check
El Guero Smog Check runs the inspection and issues the certificate but does no repairs. It is STAR certified, so it can test vehicles the DMV directs to a STAR station, including gross polluters.
Most smog checks take 15 to 30 minutes, and most visits are closer to 20.
What to bring
Your registration or DMV renewal notice
It says whether the car needs a STAR station.
The car, with the check engine light off
On a 2000-or-newer car, a lit check engine light fails the test on its own.
A way to pay
The $8.25 state certificate is paid on top of the test when the car passes, unless the station's price or coupon includes it.
What if I fail?
- El Guero Smog Check doesn't do repairs, so the car goes to a repair shop and comes back for the retest.
- BAR's Consumer Assistance Program pays up to $1,450 toward emissions repairs for income-eligible owners.
Been to El Guero Smog Check?
Rate your smog check here. Your review helps the next driver choose.
15664 Slover Ave, Fontana, CA 92335
Get directions →Hours
- Monday
- 9 AM – 5 PM
- Tuesday
- 9 AM – 5 PM
- Wednesday
- 9 AM – 5 PM
- Thursday
- 9 AM – 5 PM
- Friday
- 9 AM – 5 PM
- Saturday
- 9 AM – 4 PM
- Sunday
- Closed
Hours from public business listings. Call to confirm before you go.
Also listed on
Other stations near El Guero Smog Check
Golden Smog Test Only
9683 Fontana Ave #b, Fontana
Pep Boys Auto Service & Tires #680
16711 Valley Blvd, Fontana
Top Smogs
10591 Cherry Ave. Unit B,, Fontana
George's Sierra Shell
9684 Sierra Ave, Fontana
Williams Independent
9435 Sierra Ave, Fontana
Smog Latino
9421 Sierra Ave #b, Fontana
Nearby cities in San Bernardino County
Questions about El Guero Smog Check
El Guero Smog Check is open Monday 9 AM to 5 PM; Tuesday 9 AM to 5 PM; Wednesday 9 AM to 5 PM; Thursday 9 AM to 5 PM; Friday 9 AM to 5 PM; Saturday 9 AM to 4 PM. Closed Sunday.
Google lists the following accessibility features at El Guero Smog Check: wheelchair accessible entrance, wheelchair accessible parking.
Verify this station’s license and STAR standing at bar.ca.gov.
Listing updated October 16, 2026.
Own this shop? Add photos
BAR field office: Riverside • Licensed since 2022