Question about 1989 Ford F 150

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Changed plugs and plug wires in 1989 F 150 and it runs rougher than before need diagram

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  • yadayada
    yadayada Aug 03, 2010

    please would be nice, also have no idea what engine u have.

  • Duane Wong
    Duane Wong Aug 03, 2010

    What kind of F150 do you have? What engine size and submodel? 6 cylinder or 8 cylinder?

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  • Master
  • 667 Answers

V8 engines as follows:

289,302,5.0L(Carb.)
390,406,427,428
400,460

(cyl numbers)

Front (engine)
5 1
6 2
7 3
8 4
(firing order)
1-5-4-2-6-3-7-8


5.0L EFI
351, 5.4L, 5.8L

(cyl numbers)

Front (engine)
5 1
6 2
7 3
8 4
(firing order)
1-3-7-2-6-5-4-8

Hope this helps, let me know.

Posted on Aug 04, 2010

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