I AM HAVING TROUBLE TO GET THE ENGINE TO IDLE ...

  • Tiny
  • jameswoods
  • 1982 Chevrolet Silverado
  • 100,000 miles

I am having trouble to get the engine to idle under 1000 rpm, I turned the idle screw all the way off and have checked for vac leaks and all the outlets have the hoses on them. Where could the problem lie please?

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Saturday, April 6th, 2013 AT 6:38 PM

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  • Tiny
  • freemba
  • Expert
  • 1,142 posts

If this engine has a 4 bbl cab, wth the engine off open the secondary air flaps 9on top of carb, and use a screwdriver to tap on the lower secondary throttle plates to make the close fully. They sometimes stick.

Also [engine off] open the primary air flap (top front of carb) and the open the throttle for a second or two. This will allow the choke idle cam to fall down to its disengaged position. (The choke engages when the primary air flap is close or partially closed, thereby increasing idle speed)

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Saturday, April 6th, 2013 AT 7:11 PM

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