My IAT sensor blew after I changed my sparkplugs and it caused my reverse to go. I changed the plugs back to motor craft and the IAT sensor, but still have no reverse. It will go into every gear other than reverse and there have been no noises from train.
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That's BS!.. Intake Air Temperature sensor (IAT) got nothing at all to do with it!!!...Copy and paste the video link below, watch it and find out why reverse isn't working!!!
http://www.youtube.com/watch?v=2wiN8MV278A