Flooding, choking, dying...
My 1980 Bronco, 351M, C6, with a Holley 600 and manual choke is flooding, I think, something fierce. Here's the deal, and I hope someone can help!
I'm driving it home today and it's running like a dream - like it always does. I just start to go down a steep hill and it suddenly just dies. Sputters and dies.
It won't start. So I hold the gas to the floor and hold the key on. After a few seconds it starts something rough, black smoke billowing from the exhaust and the smell of gas. I take my foot off the gas, it idles good for two seconds then the idle drops down (as it should) and it sputters and dies quickly. So basically, I repeated this scenerio at every light going home, and drove in low gears to keep the revs up and the truck running.
Also, the battery gauge has moved from dead centre towards the "C", about half way. Keeping the revs up makes it come back to the centre a bit. The battery is new and the connections tight. And it turns the starter like crazy!
Also, I noticed it was running a little hot today as the weather warmed up today and I had the grill bra on, but it was open, and the needle was still in the "normal" zone.
The truck has about 250K (150 miles) on it and I am the second owner. It has been exceptionally well taken care of, but I'm not sure how old the carb or ignition and fuel systems are, as it's always ran great and I never screwed with any of it.
I'm not sure what to do here. As long as you floor it to start it, it will start (with a lot of black smoke and a strong gas smell), but take your foot off the gas to put it in drive and it dies. Some gas comes sputtering out the top of the carb when it dies and then it smokes from the butterfly. (Setting the high idle with the manual choke does not help, nor did turning the idle screw to increase the idle.)
Well guys, until I can get some assistance on this board, I'm hoofing it. Please help if you can...