Fast idling when it's cold


  #1  
Old 11-15-04, 05:25 AM
Q
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Fast idling when it's cold

'90 Geo Tracker 5-speed 145K miles fuel injected

Hi, whenever I crank my Geo on a cold day it idles at 2500 RPM's until it warms up. Then, when it's almost warm it starts fluctuating rapidly between 2000 & 2500. Then it goes down to normal once it is warm. Has anyone heard of this before & is there anything I can do?

Oh yeah, it only happens at cold temperatures.

Thanks
 
  #2  
Old 11-16-04, 05:54 PM
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Anyone have any ideas?...I hate to start playing with the idling, b/c it stops idling so fast after the engine warms up.
 
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Old 11-16-04, 06:08 PM
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Sounds like your automatic choke is working "almost" right. It's doing what it is supposed to do but has a little problem when it should go back to resting. May just be sticking.
 
  #4  
Old 11-16-04, 09:36 PM
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First thing to check would be your coolant level.
 
 

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