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  1. Exhaust rattle when cold

    Ours is an automatic and it is making a noise which sounds like engine pre-ignition, rod bearing or piston slap.
  2. Exhaust rattle when cold

    I have purchased a remote mic for my phone. When temps get cold again I am going to try to make another recording.
  3. Exhaust rattle when cold

    First day dealer said they couldn’t hear anything unusual. Ask to ride with them the following morning. Temperature was unusually warm at 60 degrees when we did the test ride. I could faintly hear the noise when driving but mechanic couldn’t hear it. He checked the PCM version and it is at...
  4. Exhaust rattle when cold

    In case anyone is interested...2.3 engine noises- here is a video I took from the engine compartment on a test ride. Most of the clatter is the injection pump, I assume. That clatter is not my concern, it is the "rattle" sound that can be heard in the background at 2:42-2:43 and 4:24 - 4:28...
  5. Exhaust rattle when cold

    Hello, My daughter just picked up her 2022 Bronco with the 2.3 liter engine last week. I am hearing an engine knock when the engine is cold that to me sounds like a rod knock. This is the first Ford our family has owned and my daughter's first new car. Dealer service dept is supposed to...
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