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Why does the exhaust manifolds on your 2000 E250 4.2 get red hot?
Wiki User
∙ 12y ago
Normally a blocked catalytic converter or a blocked exhaust will cause that problem.
Back pressure, means the gasses cannot escape. thus causing the manifolds to glow.
Wiki User
∙ 12y ago
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exhust valve and guid sufficiant ply./exhust valve improper set/advance iginition timing.also locked muffler.fuel,gas, tomuch high flow. ahmed mirza neduet
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