---
title: "Juan Molina — Clean Truck Check, Chula Vista, CA"
description: "Juan Molina in Chula Vista, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome…"
url: "https://ctcfinder.com/tester/juan-molina-chula-vista/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Juan Molina

Clean Truck Check tester in Chula Vista, CA (San Diego County).

> CTC Finder is an independent directory, not affiliated with CARB. Tester data: CARB Clean Truck Check public tester list, last checked November 1, 2026. Confirm services, hours and prices with the tester.

| Field | Value |
|---|---|
| Location | Chula Vista, CA 91911 |
| County | San Diego County |
| Phone | (619) 292-1633 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Juan Molina can test

| 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 San Diego County

Juan Molina is one of 178 testing businesses in San Diego County on CARB's public tester list. 157 of them offer mobile testing and 91 do smoke opacity tests. In Chula Vista itself there are 15 listed businesses, 13 of them mobile.

## 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](https://ctcfinder.com/guide/deadlines-2026-2027/). You can test up to 90 days before a deadline. Free email reminders: https://ctcfinder.com/reminders/

## Frequently asked questions

### Does Juan Molina offer mobile Clean Truck Check testing?

Yes. Juan Molina 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 Juan Molina test a 2012 or older diesel truck?

Yes. Juan Molina lists smoke opacity testing, the test CARB requires for diesel trucks of model year 2012 and older (no OBD). See [OBD vs smoke opacity](https://ctcfinder.com/guide/obd-vs-smoke-opacity-test/).

### How much does Juan Molina charge for a Clean Truck Check?

Juan Molina has not published prices with us; call (619) 292-1633 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](https://ctcfinder.com/guide/cost/).

### Is Juan Molina a CARB-credentialed tester?

Juan Molina appears on CARB's public Clean Truck Check tester list, 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 nearby

- **[Chula Vista Auto Care](https://ctcfinder.com/tester/chula-vista-auto-care-chula-vista/)** — 898 Broadway, Chula Vista, CA 91911 — (619) 888-0468 — 1 mi. Services: OBD testing, motorhome testing.
- **[David Nunez](https://ctcfinder.com/tester/david-nunez-chula-vista/)** — Chula Vista, CA 91911 — (619) 985-4999 — 1 mi. Services: OBD testing, motorhome testing.
- **[Fj Willert Contracting](https://ctcfinder.com/tester/fj-willert-contracting-chula-vista/)** — Chula Vista, CA 91911 — (619) 864-5623 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Joshua Martinez](https://ctcfinder.com/tester/joshua-martinez-chula-vista/)** — Chula Vista, CA 91911 — (619) 942-4503 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Juan Campos - Bulldog Towing](https://ctcfinder.com/tester/juan-campos-bulldog-towing-chula-vista/)** — 1590 W Frontage Road, Chula Vista, CA 91911 — (619) 244-6009 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Oscar Diesel Mobile tech 1](https://ctcfinder.com/tester/oscar-diesel-mobile-tech-1-chula-vista/)** — 806 Anita Street, Chula Vista, CA 91911 — (619) 207-6084 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.