What is your question?
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What is your question?
i put a new engine when i started the vehicle the front exhaust manifold turned very red (looks like fire inside)why did the exhaust manifold turn red what's the problem

1 Reply
My guess is that it would be turning red from excessive fuel dumping into the exhaust and causing extreme heat. You could have a stuck open injector or a fuel control issue. Definitely pay attention to this and check it out. Also - is it a remanufactured or used engine? If used, is it the exact replacement for this year and model? Make sure all matches correctly.