Stumble while engine is cold

Joined
Jun 1, 2008
Messages
158
Location
Illinois Metro St Louis
My engine idles bad after taking off first thing. Runs good while driving but when I come to a stop it start to stumble between 250-450 rpm. Once the engine heats up it is fine.

Any thoughts. I have been reading some threads on cold start injector. Wouldn't think this is what it would be but I am unsure.

Thanks guys.
 
Joined
Jun 29, 2011
Messages
908
Location
Corvallis, OR
Does it do that right away? Does it ever idle at a higher rpm? Immediately after you start the idle should be around 1200-1400 rpm.
 
Joined
Jun 1, 2008
Messages
158
Location
Illinois Metro St Louis
At start up it idles about 1300-1500 rpm. Only after taking off and driving for a few then coming to a stop. does it idle low. Low enough for me to have to hit the gas to keep it going.
 

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