q-jet won't idle today - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TC70C10 · 06-09-2003, 09:24 PM

Now what...

I adjusted the high idle screw yesterday and got it to high idle at 1500 rpms. I kicked it down and I drove it about 30 miles played 18 holes and drove it home. It ran great but I noticed my low idle was running about 900 rpms. I figured I'd adjust that tonight when I got home. When I drove it to work this morning it didn't want to idle at all.

I stalled at several stop signs. I bought a vacuum gauge tonight and at high idle I'm pulling about 20 inches of vacuum consistently. When I kick it down and hold the throttle to keep it running, the vacuum fluctuates between 15 and 20 inches.

Timing is set at 8 BTC, 305 engine.

I got this carb last weekend and cleaned it up. Any help is appreciated.

Tim

06-09-2003, 09:24 PM	#1
TC70C10 Registered User Join Date: Nov 2001 Location: Harvest, AL 35749 Posts: 337	q-jet won't idle today Now what... I adjusted the high idle screw yesterday and got it to high idle at 1500 rpms. I kicked it down and I drove it about 30 miles played 18 holes and drove it home. It ran great but I noticed my low idle was running about 900 rpms. I figured I'd adjust that tonight when I got home. When I drove it to work this morning it didn't want to idle at all. I stalled at several stop signs. I bought a vacuum gauge tonight and at high idle I'm pulling about 20 inches of vacuum consistently. When I kick it down and hold the throttle to keep it running, the vacuum fluctuates between 15 and 20 inches. Timing is set at 8 BTC, 305 engine. I got this carb last weekend and cleaned it up. Any help is appreciated. Tim __________________ 1981 K5 Blazer 305, 4spd, 4x4, 4" Lift, custom bumpers, Warn 9.5 Ti Winch 1995 T10 Blazer 4.3L 4x4 (Son's) 2004 GMC Envoy 4.2L 2WD 2005 GMC Sierra Crew Cab Z71 4x4 5.3L 240 Fun Finder Travel Trailer Harvest, AL 35749



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