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Neutral safety switch bad how to replace ? - 2000 Jeep Cherokee

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You actually dont have to replace it.Usually the only problem is dirt on the contacts and you can fix that with very little skill and tools.The switch is located on the passenger side of trans where the linkage goes into transmission .It is somewhat triangular with an electrical plug or a wiring pigtail with a plug.Remove the lingae lever(make sure ebrake is on)and loosen the large jam nut and two 12 mm head bolts that hold it to transmission case.There are several screws that hold the two haves if the switch together,remove them and gently open the two sides of the switch.Clean the old grease out with solvent or brake clean.The take some scotch brite or steel wool and clean all the contact point(copper strips) until that are shinny.Pack the switch with high temp grease(wheel bearing or cv joint grease is ideal) and reassemble the two halves and instal using the witness marks where the bolts were as an adjustment reference.take care to remove the rubber gasket and set aside before you clean the switch with solvent as this will cause it to expand and make it unusable.Good luck and let me know if I can help.I know this may seem like a bunch of work but these switches cost well over 100 to buy new and the ones they sell aftermarket tend to give trouble.

Posted on Mar 19, 2011

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Neutral Safety Switch

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DESCRIPTION

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The Neutral Safety switch monitors the position of your gear selector lever and either interrupts or allows the starting circuit in your car or truck to do its job. On newer vehicles it may also monitor the position of the brake pedal to make sure that the vehicle is in park or neutral AND that your foot is on the brake.

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Most neutral safety switches are combinations of a neutral safety switch and a backup lamp switch. Others have separate units for these two distinct functions. When the reverse light switch is not part of the neutral safety switch, it seldom needs adjustment, as it is directly activated by the transmission or the gear selector linkage.
f_ttat_t3.20.jpg Typical location of a neutral safety switch on a transaxle. Reprinted with permission of Ford Motor Company. A neutral safety switch allows current to pass from the starter switch to the starter when the lever is placed in the P or N position. Some neutral safety switches are nonadjustable. If these prevent starting in the P or N position and the gear selector linkage is correctly adjusted, they should be replaced.
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