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

timing question

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Old Jul 21, 2010 | 02:57 PM
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jd4300
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timing question

question on my timing on my 86 5.0 FI engine with AOD tranny
at an idle with everything plugged in what is normal timing. I can set it to 10 degrees with the spout connector disconnected. at idlel with everything connected i am around 3 t o 5 bdc.

my truck runs great as along as i am accelerating if i idle or cruising at 5 to10 mph it hesitates and surges.

any help is appreciated

Mike
 
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Old Jul 21, 2010 | 03:37 PM
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[quote=jd4300;9133983]question on my timing on my 86 5.0 FI engine with AOD tranny
at an idle with everything plugged in what is normal timing. I can set it to 10 degrees with the spout connector disconnected. at idlel with everything connected i am around 3 t o 5 bdc.

my truck runs great as along as i am accelerating if i idle or cruising at 5 to10 mph it hesitates and surges.

I have the exact same truck . unplug the EEC connector by the distributor. Set the timing to 10 degrees btc. reconnect the EEC.
mine also surged like that. i'm not sure what exactly fixed it because i replaced all my sensors and upgraded to msd distributor and coil at 150k miles.
 
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Old Jul 21, 2010 | 04:46 PM
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Always check for codes on these fuel injected trucks. You can waste a lot of money by guessing.
 
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