Hello From NorCal

[Craig Nedrow]

You have a California HD emissions truck, so no cats. Just make sure all the vacuum lines are connected correctly and all the parts on the air cleaner sticker are in place or you will fail. Check the timing too.

FYI look at your fill pipes. They are probably larger diameter than the standard unleaded style as the truck would have run on regular leaded gas back in the day. My '85 K30 is that way. Your gauges probably do not say "Unleaded Fuel Only." Also your emissions tag only says AIR. That's all that's required. You'll notice on mine it says AIR/EGR as mine requires both.

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Good to see you on here brother!!

 

[SQ HAF KRU]

Great looking truck, hope you get all the smog details figured out...I'm sure at times the emissions are a pain in the butt....thanks for joining the group

 

[82_GMC_SIERRA]

Just an update.

Everything passed nicely minus the timing.

I forgot to check it. It was set at 14 degrees and it called for 6.

I am currently doing the test again.

I replaced any hoses that were loose or cracked.

Did an ignition tune up as well.

Will know in the next 10 minutes if I’m in the clear.

I will most likely convert it to dual exhaust or at least a less restrictive muffler. Still don’t want it too loud but not having cats will make that easier to do.

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[82_GMC_SIERRA]

It passed!

 

[JamesSam]

Welcome from VA. Cool GMC truck. Love the color. Glad you passed emissions. Looking forward to what you do next.