5.7L electric choke question

[tfret]

I replaced my carburetor a few years back and when I did I ordered it with the electric choke, which was an upgrade to the old style heat spring connected to the manifold that it had before. Once I got it adjusted correctly it has worked perfectly for the past few years. This summer I started having trouble with hot restarts. So I adjusted the choke some. Got the hot restart issue solved but began having cold start problems. I've been back and forth several times since. I wonder if the electric heater coil has gone bad? Can I ohm this to tell if its still good?

 

[alldodge]

I replaced my carburetor a few years back and when I did I ordered it with the electric choke, which was an upgrade to the old style heat spring connected to the manifold that it had before. Once I got it adjusted correctly it has worked perfectly for the past few years. This summer I started having trouble with hot restarts. So I adjusted the choke some. Got the hot restart issue solved but began having cold start problems. I've been back and forth several times since. I wonder if the electric heater coil has gone bad? Can I ohm this to tell if its still good?

Set the choke when cold to an 1/8 gap at the top. After the engine starts the choke should slowly open as the bi-metal strip heats up. If the choke plate is fully open when the engine is warm, the choke is working correctly. If it does not open fully just replace the choke if there are no other linkage issues.

 

[NHGuy]

You might have a different issue behind the choke adjustments though. Set the choke as AllDodge says.
Spray some carb cleaner around the outside of the carb and the edges of the intake manifold, changes in engine speed are leaks that need to be sealed up. Check for any loose vacuum lines or vacuum leaks too.

 

[tfret]

Isn't the action of the choke simply a function of the temperature spring? As the spring expands or contracts it manipulates the choke linkage? I didn't think vacuum played a role with the choke. Please correct me if I'm mistaken.

 

[Fishermark]

Easiest thing to do is to supply power to the electric choke and see if it opens. If it doesn't, then yes, your heating element is probably bad.

 

[NHGuy]

Yes the element heats and opens the choke. But my reason for suggesting the checking was to be assured that nothing else is wrong.