The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Adjusting Idle Mixture Screws Does Nothin

bnoon · 11-13-2014, 10:52 PM

If it's idling too fast you can't set idle mixture. Set it when the engine is warm and at low idle in the 600-750 range. You should be able to see the vacuum gauge change position as you adjust.

11-13-2014, 10:52 PM	#2
bnoon Registered User Join Date: Jul 2012 Location: Des Moines IA Posts: 1,250	Re: Adjusting Idle Mixture Screws Does Nothin - Quadrajet If it's idling too fast you can't set idle mixture. Set it when the engine is warm and at low idle in the 600-750 range. You should be able to see the vacuum gauge change position as you adjust. __________________ - 1981 Sierra 454, NV4500 swap - 2006 Z06, 25k miles - 1973 Nova - Project CarNova Virus on Youtube