Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

Got my carb back and choke stays on fast idle

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benbuff:
I got my carb back from cliff and installed it.  Starts right up but even with the engine hot it stays on fast idle.  My question is theres a vacuum looking port coming off the front of the choke housing, is it supposed to have vacuum?  Its just open now.  Its an electric choke with 12 v power running to it.  Thanks, Ben

Frank400:
  The choke is adjustable as for "how long" it stays on.  If you loosen up the three screws holding the electric choke unit and turn it a bit clockwise, that should shorten the time it stays on.
 
    Are you positive you have 12 v to the choke while the ignition switch is on ?  I'm guessing you do but never a bad idea to double check.

   What is the carb number ?

benbuff:
I'll have to look I don't remember.  It is on a 79 k5 blazer if that helps.  I checked it with a test light, but didn't actually test it to see how many volts.  It worked before I had it rebuilt.

Cliff Ruggles:
We test them before shipping to verify the choke works with a 12 volt source, and dial in all the basic settings.

Haven't had any defective electric chokes to date, but if we installed a new one an you can verify it isn't heating up we'll replace it on our dime......Cliff

benbuff:
Is the port coming off the front of the choke housing supposed to be open?

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