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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

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Old Sep 14, 2013 | 06:03 PM
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1986stepsidef150's Avatar
1986stepsidef150
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confused

I just replaced my motor with a long block 302fi because I was losing compression in my old one. Also new is fuel injectors ICM IAC tps plugs wires cap rotor distributer air temp sensor collant temp sensor pretty much everything. Now when I start it every time it stumbles/misses and then after a minute or so it straightens up and runs fine. Any ideas on this?? 86 f150 302fi
 
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Old Sep 14, 2013 | 06:16 PM
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Have you pulled codes?
 
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Old Sep 14, 2013 | 06:21 PM
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1986stepsidef150
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Originally Posted by f100beatertruck
Have you pulled codes?
I did koeo and got a 11 which according to the book is a all clear
 
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Old Sep 15, 2013 | 12:44 AM
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But the problem occurs when it's running, so do the KOER stuff and see what it says.
 
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Old Sep 15, 2013 | 07:25 AM
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If everything comes back code 11, I would;

Check the timing. Take the spout connector loose and check it.

Check the throttle stop setting. The engine should barely run or die when you pull the connector off the IAC after the engine is warmed up.
 
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