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Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
460 runs rough when warm

460 runs rough when warm

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Old

Mar 13, 2005 | 05:33 PM

#1

jonnybronco

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Junior User

Joined: Jan 2005

Posts: 76

Likes: 2

460 runs rough when warm

I have a 1988 F-250 with a fuel injected 460. I just changed spark plugs wires cap and rotor on routine tuneup and ever since it runs rough when it gets warmed up. The truck runs fine when cold but within a few minutes of running it idles rough and sputters when accelerating. Any idea what's going on here?

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Old

Mar 14, 2005 | 12:03 PM

#2

smoke n tires

Elder User

Joined: Sep 2004

Posts: 500

Likes: 0

From: midwest

sounds like a fuel problem maybe. check the o2. are the injectors clean? also check the throttle body. is the check engine light on?

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