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sohc chirp sound cold start

  1. O

    High pitched squeal/chirp when starting cold - NOT BELT!

    Hi I have a 2007 ford explorer XLT 4.0 SOHC. When starting cold, I have that chirp for a couple of seconds then it disappears. When starting a warm engine, no sound unless it's a cold day. I started with the common sense solution, changing the belt and tensioner and checking all other...
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