1973 K-5 Smog Pump Required?

[dontoe]

I bought my newest Blazer back in March thinking I could install headers and aluminum intake and all with no problems. Now I go to get an Inspection sticker and I find I need a /forums/images/graemlins/yikes.gif smog pump, lines that go to the exhaust manifold and vapor cannister. They even said I need to replace the K&N air cleaner with a stock one. Any ideas ????????

 

[monsterjim]

try some real high octane fuel and add 107 octane boost to it and go to a different place, the fuel will be burning cleaner and hopfully the test wont pick anything up. Don't know what the deal with the K&N is though. I think they sell something at auto parts store that almost guarantees you to pass you emmisions test, but don't know if it works or not, might ask em. lol

 

[dontoe]

Oh we don't have a tailpipe test on older than 1995. That was just a visual.

 

[mrk5]

Don't see how that could be on a '73. /forums/images/graemlins/frown.gif

I had a '75 and had no problems passing the sniffer here in Colorado. It was a completely modified motor: headers, cam, intake, and carb. But no K&N.

 

[diesel4me]

If you put 3 or 4 bottles of isopropanol "dry gas" in with about a 1/4 tank or less of fuel it will help a great deal to lower the hydrocarbons--the "gaurenteed to pass"stuff at the stores is pretty much the same thing.Fill your tank up full after you pass the test,that high of a concentration of alcohol may lossen up some gunk in the fuel system or make it ping.Also take it for at least a 15 minite ride on the highway to thourougly warm it up--most times that I flunked the sniffer test was because I had to sit in the lot idling for a long time waiting for the previous inspection to get done,and have my turn--by then it was cooled off enough to fail the test.You can also play with the timing and pull the pcv valve out of the valve cover to help lower the CO and hydrocarbons too.

 

[JDNobodi]

[ QUOTE ]
Oh we don't have a tailpipe test on older than 1995. That was just a visual.

[/ QUOTE ]

The key word is visual . It does not matter if truck passes the sniffer test - they will fail it because it is missing smog equipment.

What is the matter? You can't get a smog pump core at a junk yard, or you're missing other smog equipent?

 

[JDNobodi]

You may have to put on headers that has the air injection tubes.

 

[pauly383]

OUCH /forums/images/graemlins/yikes.gif 75 and back only need to pass sniffer, AZ doesn't even pop the hood that old . Your state is /forums/images/graemlins/screwy.gif

 

[arq]

you should read my experience with the cali EPA. there's actually a federal law that states you can not remove any somg equipment from a vehicle if it came with it.

you can read all about it in the first gen section.

ARQ.

 

[dontoe]

Well I guess I will put the crap back on. Thought I was gonna be before the emissions stuff when I bought it. Have to start looking for a 1st Gen I suppose. /forums/images/graemlins/frown.gif

 

[K5MONSTERCHEV]

[ QUOTE ]
Well I guess I will put the crap back on. Thought I was gonna be before the emissions stuff when I bought it. Have to start looking for a 1st Gen I suppose. /forums/images/graemlins/frown.gif

[/ QUOTE ]

Firt gen or not, whatever smog contorl devices your vehicle came with, its not supposed to be removed. Even if you are exempt, you can still get notices to get a smog check. Atleast in CA.