---
title: "The Uglymechanic LLC — Clean Truck Check, Stockton, CA"
description: "The Uglymechanic LLC in Stockton, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/the-uglymechanic-llc-stockton/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# The Uglymechanic LLC

Clean Truck Check tester in Stockton, CA (San Joaquin 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 | 7010 Morton Ct, Stockton, CA 95219 |
| County | San Joaquin County |
| Phone | (209) 471-0945 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks The Uglymechanic LLC 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 | Not listed |
| California-registered motorhome | Same test as above by engine year, once a year | Not listed |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is A&G Truck Maintenance in Stockton, about 1 mile away. [See listing](https://ctcfinder.com/tester/a-and-g-truck-maintenance-stockton/).

## Clean Truck Check testers in San Joaquin County

The Uglymechanic LLC is one of 124 testing businesses in San Joaquin County on CARB's public tester list. 111 of them offer mobile testing and 53 do smoke opacity tests. In Stockton itself there are 50 listed businesses, 43 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 The Uglymechanic LLC offer mobile Clean Truck Check testing?

Yes. The Uglymechanic LLC 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 The Uglymechanic LLC test a 2012 or older diesel truck?

The Uglymechanic LLC does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [A&G Truck Maintenance](https://ctcfinder.com/tester/a-and-g-truck-maintenance-stockton/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does The Uglymechanic LLC charge for a Clean Truck Check?

The Uglymechanic LLC has not published prices with us; call (209) 471-0945 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 The Uglymechanic LLC a CARB-credentialed tester?

The Uglymechanic LLC 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

- **[A&G Truck Maintenance](https://ctcfinder.com/tester/a-and-g-truck-maintenance-stockton/)** — 10565 Dnieper Ln, Stockton, CA 95219 — (209) 910-7153 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Central California Mobile Repair](https://ctcfinder.com/tester/central-california-mobile-repair-stockton/)** — 2819 W March Ln Suite B6 #162, Stockton, CA 95219 — (209) 438-4689 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Gabriel Galvan](https://ctcfinder.com/tester/gabriel-galvan-stockton/)** — Stockton, CA 95219 — (209) 636-9091 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[A+ Auto Repair](https://ctcfinder.com/tester/a-auto-repair-stockton/)** — 9170 Thornton Rd, Stockton, CA 95209 — (916) 932-3372 — 9 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Evergreen Mobile Diesel Emissions Testing](https://ctcfinder.com/tester/evergreen-mobile-diesel-emissions-testing-lodi/)** — 747 Evergreen Dr, Lodi, CA 95242 — (209) 712-5369 — 10 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Frank C Alegre Trucking](https://ctcfinder.com/tester/frank-c-alegre-trucking-lodi/)** — 5100 W Highway 12, Lodi, CA 95242 — (209) 810-5035 — 10 mi. Services: not listed.