Tag Archives: diesel smog test

California Inclusion of Light-Duty Diesel Vehicles in the California Smog Check Program

So everyone with a Powerstroke, Cummins or Duramax or similar truck has probably heard by now that California is going to start Smog Checking these vehicles starting in April 2010! So what does all this mean for you? It means a lot is going to change.

I’ll start with some Frequently Asked Questions:

What is the Diesel Smog Check inspection procedure?

The diesel Smog Check inspection will consist of three parts; a visual check of the emission control equipment, a check of the OBD (on board diagnostics) system and a test for visual smoke.

When will diesel inspections begin?

The DMV will begin mailing notices to motorists who own diesel-powered vehicles subject to the program for registrations due in April 2010. However, change of ownership and out-of-state inspections will be required starting Jan. 1st 2010. Unlike gas-powered vehicles, there is no six-year or four-year exemptions included in the Smog Check Program.

Will any diesel vehicles be exempt from the program?

Yes, all diesel vehicles over the maximum 14,000 Gross Vehicle Weight Rating (GVWR) limit will be exempt from the Smog Check Program. The GWVR is indicated on a label located on the chassis on the door jamb of the vehicle. (Yeah, great…)

Will smog Check Technicians be looking for modified or tampered emission control systems?

Yeah, if the technician notices a modified emission control system or devices that are not ARB approved – you will be failed. Often approved devices will have a label with an ARB Executive Order (EO) number on it.

I tried searching ARB.CA.GOV for any aftermarket parts available that is A-OK by the ARB and found nothing for us diesel guys…

Alright so a lot of people are going to be a bit upset by all this, I’m sure. What can we do? We can do everything we can to pass smog then put it all back together again. That’s about all we can do. Sorry folks.

Here is a link to the ARB’s website with a ton of info on the subject… CLICK HERE

Come check out some of OCDiesel’s own YouTube videos on the subject CLICK HERE

Live locally? Feel free to stop by our location and meet us! OC DIESEL, INC. is located at 17242 Gothard Street, Huntington Beach, CA 92647 Suites A and B. We have a full service shop staffed with knowledgeable technicians who are ready to squash any Diesel Repair issues.

The Diesel Performance Experts