2004 Ford Explorer what could it be?

2004 FORD EXPLORER
120,000 MILES
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DELENE
  • MEMBER
  • 1 POST
Replaced plugs, wires & coil pack, car still missing. When driving you can tell that it not shifting properly into gear. The od light shuts off by itself and the 4wd comes on by itself. The car makes a clunk & jerks when It is put into park, drive or reverse. someone suggested that some problems could be a vacume leak. Please advise me.
Thank you
Sep 19, 2013 at 10:56 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
obviousl y this has a 0300 code, have a pro check because these are extremely hard to diagnose even for a pro. If you want to try, make sure all vacuum lines and hoses are connected as well as grommets on valve covers are in good shape.
Sep 19, 2013 at 12:17 PM
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