I have an '81 Chevy with a 4 barrel carb, and an electric choke. I had the
carb rebuilt last summer, and it has been working great up until about a
month ago. Cold starts, as in, first start of the day, I always used to
press the pedel to the floor and release it, then turn the key. It would
start up right away and go to fast idle. Now that's not working. I think
it's the choke, but am not sure. Now it does start right up, but dies right
away. Then I have to pump the gas pedel 4 or 5 times to get it to start.
The truck was sitting for 4 months without being started, if that helps, but
I don't think that makes a difference.
My understanding was that pressing the gas pedel to the floor sets the choke
to an almost closed state, and that in turn feeds the engine more gas than
air, and allows it start better when cold(first start, not necessarily cold
weather), and as the truck warms up the choke opens up.
Am I on the right track?
Any help is appreciated. TIA.