How to fix a knocker sensor on a 1996 Mercury villager

Do Not ever replace a kncok sensor. It does no harm or no good. Just leave it alone.

yahoo group for villager quest owners for help.

bad turn signal switch maybe

http://groups.yahoo.com/group/villagerquest/

DO NOT CHANGE THE KNOCK SENSOR EVER. waste of $600

http://groups.yahoo.com/group/villagerquest/

do not ever change a kncok sensor. won't fix anything.

http://groups.yahoo.com/group/villagerquest/

remove the starter first.

go to yahoo group villager quest website

go here and read files on proper adjustment of a/c belt to prevent crank damage.
http://groups.yahoo.com/group/villagerquest/

please rate, thanks

Probably a bad distributor. The cam sensor and optical sensor are under the slotted wheel and when the bearing goes, it gets brown dust on the optical sensor. Temp fix is to clean the optical sensor, but you will need a reman distributor, $200 on ebay. 1999 was famous for this issue.
go here for more help

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knock sensor is in valley of engine, remove intake for access.

However, I would never repalce it because it can't cause a problem.

The optical lens is inside the distributor. Remove the cap and rotor then remove the metal plate and it is underneath.

You can have a shop diagnose the problem by checking for a computer code that should tell them about the conditon of the sensor or solenoid. You shouldn't have to start over with a new trans, but get referrals to a good shop first. Always check your fluid levels first, make sure they are what they should be and that the fluid looks good and red, not dark and dirty. Sometimes it's the easy stuff that gets overlooked.