Have seen where the connection plug gets loose inside the car. Reconnect the code reader and make sure the prongs are pushed in making a good contact. Had it happen on my camaro
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Thursday, February 3rd, 2011 AT 3:08 PM
DAVE'S BIG BACKYARD!
MECHANIC
262 POSTS
Most of your older fords have the hook up under the hood this makes it worse lol.