Question about 2003 Ford Expedition

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Signal indicators - both directions, sometimes they work, sometimes they dont. Bulbs are fine.

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Everything comes through the Turn signal stalk. First, try pushing the Hazard button off and on 6 or more times. The contact points in the Hazard button derail the other contact points in the stalk. Sometimes all that is needed is to clean the contact points and it can be helped by pushing the Hazard button.

The Turn stalk is referred to as a MPS multi position switch and it is $50 to $80. The procedure to check the pin connectors on the MPS is the same as for removal. You take off the cover on the steering column, and you may have to remove the Ignition tumbler if it prevents the plastic cover from coming off. There are 2 female torx screws holding the MPS to the column. Sometimes tightening these 2 screws fixes problems. As this is a sealed case you would think it should not matter, but sometimes it works.

If you are Electrically trained, some of the MPS cases are held together by more female Torx screws. To me its Pandoras box, but you might save your money if you can successfully open and reassemble the contact points. Check your pin connectors and spray them with Electrical cleaner as well as the contact points.

I hope this gives you a direction to go and Thanks for using Fixya.

Posted on Nov 06, 2010

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