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

wont start??

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Old Feb 24, 2005 | 08:41 PM
  #1  
fordtruckfan90's Avatar
fordtruckfan90
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wont start??

my buddy has an 86 f-150 302 efi, with a40d tranny. The only way the truck will start is if you spray gas/carb cleaner in the throttle body, it will stay running, then when put into gear dies, unless you keep on the gas. Spark is good, fuel pressure at the rail is good as well, this has stumped us for a long time.
 
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Old Feb 25, 2005 | 02:43 PM
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If gas and spark are good I would check timing and look for vacuum leaks. Or maybe you just got some bad gas.
 
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Old Feb 26, 2005 | 06:31 AM
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Any codes?Get an accurate fuel pressure reading.Do the tests first and save yourself a lot of headaches. How about fuel filter?
 
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Old Feb 26, 2005 | 06:50 AM
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I'd try cleaning out the IAC valve on the throttle body...
 
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