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Why Will my FORD 460 not idle properly when cold and dies but will idle when hot?
Wiki User
∙ 14y ago
Without being able to diagnose, I would say you may have an intake manifold vacuum leak. This could be resolved when the engine heats-up, expands the parts and the vacuum leak disappears. If it is a newer engine with electronic engine controls, the sensors take over when it is warm and will control the fuel flow to off-set the vacuum leak and allow it to run (crappy and very fuel-inefficiently, but run nonetheless). Again, this is only one possibilty in a pile of possibilities...Have it looked-at and find-out for sure!
Wiki User
∙ 14y ago
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