---
title: "James Perez — Clean Truck Check, Carol Stream, IL"
description: "James Perez in Carol Stream, IL is on CARB's Clean Truck Check tester list. Offers OBD testing, smoke opacity (non-OBD) testing, motorhome testing. Phone…"
url: "https://ctcfinder.com/tester/james-perez-carol-stream-il/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# James Perez

Clean Truck Check tester in Carol Stream, IL.

> 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 | Carol Stream, IL 60188 |
| Phone | (630) 991-7798 |
| Mobile testing | No |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks James Perez 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 |

If you need a tester at your yard, the nearest listed tester that offers mobile testing is Power Pro Service in Roselle, about 5 miles away. [See listing](https://ctcfinder.com/tester/power-pro-service-roselle-il/).

## Clean Truck Check testers in Illinois

James Perez is one of 65 testing businesses in Illinois on CARB's public tester list. 44 of them offer mobile testing and 19 do smoke opacity tests.

## 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 James Perez offer mobile Clean Truck Check testing?

Not according to CARB's tester list; plan to bring the truck to the tester. The nearest listed mobile tester is [Power Pro Service](https://ctcfinder.com/tester/power-pro-service-roselle-il/) (about 5 miles).

### Can James Perez test a 2012 or older diesel truck?

Yes. James Perez 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 James Perez charge for a Clean Truck Check?

James Perez has not published prices with us; call (630) 991-7798 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 James Perez a CARB-credentialed tester?

James Perez 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

- **[Power Pro Service](https://ctcfinder.com/tester/power-pro-service-roselle-il/)** — 525 Carlsbad Trl, Roselle, IL 60172 — (224) 522-9533 — 5 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Fleet PRO Truck Repair](https://ctcfinder.com/tester/fleet-pro-truck-repair-bartlett-il/)** — 305 Miles Pkwy, Bartlett, IL 60103 — (773) 992-6890 — 6 mi. Services: OBD testing, motorhome testing.
- **[Truck and Trailer Repair Team Inc](https://ctcfinder.com/tester/truck-and-trailer-repair-team-inc-bartlett-il/)** — 315 Miles Pkwy, Bartlett, IL 60103 — (505) 227-3090 — 6 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Vitalie Pascal](https://ctcfinder.com/tester/vitalie-pascal-bartlett-il/)** — Bartlett, IL 60103 — (630) 509-8444 — 6 mi. Services: mobile testing, OBD testing.
- **[Railean CO](https://ctcfinder.com/tester/railean-co-schaumburg-il/)** — 161 Cripple Creek Ct, Schaumburg, IL 60194 — (407) 848-4001 — 8 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Bojan Grubisa](https://ctcfinder.com/tester/bojan-grubisa-naperville-il/)** — Naperville, IL 60563 — (312) 550-5052 — 10 mi. Services: mobile testing, OBD testing.