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

Where's the MIL light ?

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Old Jul 20, 2005 | 01:33 PM
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61F750
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Where's the MIL light ?

I'm working on an '86 F-150 with a 5.0, fuel injected, EEC-IV, auto overdrive. It runs OK but has a few problems. This is the first time working on an electronic fuel injected vehicle. I got a code reader. Where does it plug in? There's a red plastic plug near the battery that fits three of the four terminals on the reader. I can't find anything that is labeled like the instructions indicate either under the hood or under the dash. Also, where's the MIL (check engine) light. It has the usual row of lights across the top of the dash, but none say "check engine". I can hear the brake booster hissing sometimes, that's a start.
 
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Old Jul 20, 2005 | 01:44 PM
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Just incase it has wrong one in, it may say "emissions".
 
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Old Jul 20, 2005 | 04:19 PM
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the mil light may also be located in the center of the radio panel up at the top in that row of raised panels that are supposed to look like the ones above the instrument cluster that is where it is in my f150
 
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Old Jul 21, 2005 | 12:07 AM
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Originally Posted by 3/4T man
the mil light may also be located in the center of the radio panel up at the top in that row of raised panels that are supposed to look like the ones above the instrument cluster that is where it is in my f150
Possible; but thats were my digital clock is.
 
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Old Jul 21, 2005 | 06:21 PM
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Hmm I heard that there is no check engine light, and the emissions light goes on at a set mileage to remind you for maitenance? whats the real deal?
 
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Old Jul 21, 2005 | 06:41 PM
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If I remember correctly, '86 302 EFI will have a "check engine" light. If its a carburated motor like the 351W it will have the "emissions" light, and will be as you describe.
 
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