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My truck is a 1987 f150 4.9 4x4 4 sp. Any does it have a computer on it.

(1990 Ford F-150)
in Brea, CA on February 12, 2014
I jump a wire from connecter to another and don't get flashing codes. I have hesitation at low rpm & ex. leak
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of G. T. Service Center on February 12, 2014
Yes it does have a computer, and it should have flashed an 11 if there was no codes, maybe recheck on how to check with a test light
on February 12, 2014
That s early system ,u sure your jumping the right pins ,if so' fuse blown ,check fuses.
Then it will give ucflashimg check engine light ,u gotta count the flashes..
I gt same truck but 1995 ,they were notorious for that cross over pipe in the back of the heads rusting and melting the vacuum
Lines in the back of the engine..
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