Is the alternator air cover and horn on a 2005 focus 2.0 duratec engine really necessary?

Asked by Jan 14, 2012 at 05:03 PM about the 2005 Ford Focus ZX4 SE

Question type: Maintenance & Repair

Is that plastic cover and air horn on the back of the alternator really critical? It a p.i.t.a to get it back on, and i can't really see the purpose of it.

2 Answers

it keeps the alt a little cooler.if it runs fine with it off,leave it off,

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