ANSWERS: 3
  • I am now having the same problem. Did you find an answer?
  • I have the same problem with my 2003 Explorer. The thumping noise seems linked the AC/Heating System. When the AC/heat is off then the thumping sound is faint and keeps to the beat of a turn signal. When the air flow is increased the thumping sound grows. I wish I new what is causing the noise...it's driving me crazy.
  • I'm considering buying my brother's 2002 Explorer....and it has this issue. Did anyone figure out what this was and if so....how much did it cost to fix it? Thanks! John

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