when I first start my F150 it has a loud ticking noise but then quiets down after it is warm but the noise is still there
F150 has loud ticking on initial start-up. but quiets as the engine gets warm. Although the ticking is still present but not as loud.
Have you opened the hood to determine where the ticking is coming from? Just from the limited info I have to go on, my guess is you have an exhaust leak at one of the flanges making the tick and as the engine and exhaust pipes get warmer the gap closes due to the heat and no more tick.
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