Does deisel trucks need to be smogged? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Nima** · 01-29-2005, 06:07 PM

Hey Guys:
I hope everybody has a good weekend, I don't!!. Marriage problem. Sorry about the vent!. I was talking to some body few days ago and smog issue came up. I live in CA. It might be stupid but I don't know the answer. Do they need smog certification, if not what they need?

SideStepper · 01-29-2005, 09:08 PM

I don't believe that there are smog requirements for any California diesel vehicles.

70short/step · 01-29-2005, 09:12 PM

I do know that the Trucks that are deisel at work are not smogged, but they have what is called a "Smoke" test. They are Big Trucks with Cummins So I dont know about pick-ups. And I work for the local government and "we" still have to do it.

scootergmc · 01-30-2005, 01:42 AM

The answer is NO.

gonebad2 · 01-30-2005, 12:15 PM

I think with a "smoke test" they are measuring the amount of particulates the engine spews out.

**kwmech** · 01-30-2005, 01:14 PM

No smog check required but occasionally they will call someone into the office so they can verify that it has not been converted over to gas.

**Nima** · 01-30-2005, 02:16 PM

Interesting!. But why they don't need smog? Because they burn better? Just curious.

Mixup · 01-30-2005, 03:03 PM

In Nevada they run them on a dyno for the smog test.

01-29-2005, 06:07 PM	#1
Nima Blue 67 Join Date: Apr 2004 Location: Western WA Posts: 1,178	Does deisel trucks need to be smogged? Hey Guys: I hope everybody has a good weekend, I don't!!. Marriage problem. Sorry about the vent!. I was talking to some body few days ago and smog issue came up. I live in CA. It might be stupid but I don't know the answer. Do they need smog certification, if not what they need?

01-29-2005, 09:12 PM	#3
70short/step Registered User Join Date: Dec 2003 Location: Stockton, CA Posts: 1,579	I do know that the Trucks that are deisel at work are not smogged, but they have what is called a "Smoke" test. They are Big Trucks with Cummins So I dont know about pick-ups. And I work for the local government and "we" still have to do it. __________________ For every person with a spark of genius, There are a hundred with ignition trouble. 70 Short/Step

01-30-2005, 12:15 PM	#5
gonebad2 Merciless Butcher Join Date: Oct 2003 Location: CC Nevada Posts: 1,447	I think with a "smoke test" they are measuring the amount of particulates the engine spews out. __________________ Your Bought And Sold....I Got Your Soul!

01-30-2005, 03:03 PM	#8
Mixup Registered User Join Date: Jan 2002 Location: Henderson, NV Posts: 358	In Nevada they run them on a dyno for the smog test. __________________ 1980 Chevy Shortbed Pickup 1969 Z28 engine Turbo 350

01-29-2005, 09:08 PM	#2
SideStepper Registered User Join Date: Jun 2002 Location: Southern California U.S.A. Posts: 275	I don't believe that there are smog requirements for any California diesel vehicles.

01-30-2005, 01:42 AM	#4
scootergmc Registered User Join Date: Aug 2003 Location: Galt, CA Posts: 16	The answer is NO.

01-30-2005, 01:14 PM	#6
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,504	No smog check required but occasionally they will call someone into the office so they can verify that it has not been converted over to gas.

01-30-2005, 02:16 PM	#7
Nima Blue 67 Join Date: Apr 2004 Location: Western WA Posts: 1,178	Interesting!. But why they don't need smog? Because they burn better? Just curious.



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