Rancho Suey Mechanical Services INC
Clean Truck Check tester in Santa Maria, CA (Santa Barbara County).
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Rancho Suey Mechanical Services INC appears on CARB's public list of credentialed Clean Truck Check testers with 5 credentialed testers at this business. It lists mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. Mobile testing means the tester can come to your yard or job site.
- Location
- 310 W. BETTERAVIA RD, Santa Maria, CA 93455
- County
- Santa Barbara County
- Phone
- (805) 680-8893
- Mobile testing
- Yes — comes to your yard
- OBD testing
- Yes
- Smoke opacity (non-OBD)
- Yes
- Motorhomes
- Yes
- Credentialed testers
- 5
- Last verified
Call (805) 680-8893 Open in Google Maps
Before you call
- Have your VIN, odometer reading and plate number ready.
- Your vehicle must be registered in CTC-VIS and the annual compliance fee paid; the tester submits the result to CARB.
- Ask for the price per vehicle and any mobile trip fee. Typical published prices for an OBD test are $50–$135 per vehicle (see cost guide).
Which trucks Rancho Suey Mechanical Services INC can test
The test CARB requires depends on the engine's fuel and model year. Based on the services Rancho Suey Mechanical Services INC lists on CARB's tester list:
| Your vehicle | Test required | This tester |
|---|---|---|
| Diesel, model year 2013 or newer | OBD scan | Yes |
| Alternative fuel (natural gas, propane), 2018 or newer | OBD scan | Yes |
| Diesel, model year 2012 or older (no OBD) | Smoke opacity test (SAE J1667) plus visual inspection | Yes |
| California-registered motorhome | Same test as above by engine year, once a year | Yes |
Clean Truck Check testers in Santa Barbara County
Rancho Suey Mechanical Services INC is one of 31 testing businesses in Santa Barbara County on CARB's public tester list. 30 of them offer mobile testing and 13 do smoke opacity tests. In Santa Maria itself there are 21 listed businesses, 20 of them mobile. All testers in Santa Barbara County.
When your truck is due
Most trucks test twice a year, on a schedule tied to the DMV registration expiration date. CARB says OBD trucks move to four tests a year beginning October 2027. California-registered (non-commercial) motorhomes and agricultural vehicles test once a year. See the deadline guide. You can test up to 90 days before a deadline. Get a free email reminder before each one.
How to check a tester's credential
CARB publishes its Clean Truck Check tester list, where Rancho Suey Mechanical Services INC appears as of November 1, 2026. Listing there is optional, so a missing name does not always mean a tester is not credentialed. After the test, check that the passing result shows for your vehicle in CTC-VIS; that is what counts for compliance.
Frequently asked questions
Does Rancho Suey Mechanical Services INC offer mobile Clean Truck Check testing?
Yes. Rancho Suey Mechanical Services INC says on CARB's tester list that it offers mobile testing, so it can come to your yard or job site. Ask about a trip fee when you call.
Can Rancho Suey Mechanical Services INC test a 2012 or older diesel truck?
Yes. Rancho Suey Mechanical Services INC lists smoke opacity testing, the test CARB requires for diesel trucks of model year 2012 and older (no OBD). See OBD vs smoke opacity.
How much does Rancho Suey Mechanical Services INC charge for a Clean Truck Check?
Rancho Suey Mechanical Services INC has not published prices with us; call (805) 680-8893 for a quote. Published California prices are usually $50–$135 per vehicle for an OBD test and $190–$200 for a smoke opacity test, plus CARB's annual fee ($32.13 in 2026). See the cost guide.
Is Rancho Suey Mechanical Services INC a CARB-credentialed tester?
Rancho Suey Mechanical Services INC appears on CARB's public Clean Truck Check tester list with 5 credentialed testers, last checked November 1, 2026. Only credentialed testers can submit results to CARB; after the test, confirm the passing result shows for your vehicle in CTC-VIS.
Other testers near Santa Maria
-
Travis Gomez
- Mobile testing
- OBD test
- Motorhomes
-
Cetti_Services Unlimited, Inc
- Mobile testing
- OBD test
- Motorhomes
-
Coast Diesel Service
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
-
Deadline transit inspection
- Mobile testing
- OBD test
- Motorhomes
-
Diesel Injection Systems
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
-
Esteban Luna Solis
- Mobile testing
- OBD test
Source: CARB's public Clean Truck Check tester list, last checked . Listing on CARB's list is optional for testers, so some credentialed testers are not shown. Services, hours and prices change; please confirm with the tester before you go. Something wrong? Send a correction.