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I just replaced by neutral safety switch and it will still not start is show on the computer that the car is in drive D so it will not trun over help

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What will cause my 2008 gmc envoy not to move when I put it in reverse neutral or drive


  • Neutral safety switch sends a signal to the on-board computer to allow the engine to start and to engage the transmission
  • When not replaced, vehicle may experience no start and/or transmission will not shift out of park.Here's a link to the part,
Duralast Neutral Safety Switch DR4146 Read Reviews on Duralast DR4146

Mar 22, 2016 | GMC Cars & Trucks

2 Answers

Why do I have to wiggle it around in neutral to get it to start again?


sounds like the neutral safety switch. i have replaced a few on ford trucks. after a while they tend to wear out or get out of adjustment. but if you wiggle it around and it starts. my guess is the neutral safety switch. you didn't specify what kind of vehicle you have but there are a lot of videos on you tube that may show you how to do this. good luck

Jan 18, 2016 | Cars & Trucks

1 Answer

2003dodge caravan neutral safty switch


Test/Service/Replace Neutral Safety Switch
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.
To adjust a typical neutral safety switch:
  • Place the shift lever in neutral.
  • Loosen the attaching bolts for the switch.
  • Using the angling pin, move the switch until the pin falls into the hole in its rotor.
  • Tighten the attaching bolts.
  • Recheck the switch for continuity. If no voltage is present, replace the switch.
  • The switch sometimes controls the operation of the back-up lights also. With the engine off and the key on, put the selector in reverse position. Check the back-up lights to see that they are on. Then, check in the drive position to see that they are out.

Aug 15, 2012 | Cars & Trucks

1 Answer

Car just started today. When driving to it sounds like thump when changing gears. Talked to transmission guy and he said that Mazda is notorious for faulty park/neutral switch. If we replace that it should...


The park/neutral safety switch has two purposes,
1 not to let the engine start unless it is in park or neutral settings.
2 is when you manually switch gears, it tells the computer and the computer keeps the engine in check until you shift, then the computer compensates for that gear and so on.
I would check motor/ transmission mounts, drive shafts, Suspension bushings,struts, or steering linkage first.

Jun 15, 2010 | 2000 Mazda 626

1 Answer

Hey whats up my name is robert and i have a problem with my 2006 nissan altima 2.5 auto. i think i know what it could be but i do need ur assistance to be sure. My car does not fire up when i turn the key....


It sounds like you need to replace your Neutral Safety Switch. A (NSS) Neutral Safety Switch comes in all Auto Transmission cars and is a safety device that only lets you start your car only while it is in Park or Neutral. If you try to start it in any other gear or if your NSS is going bad it will prevent you from starting your car. You can replace it yourself it is right by the Auto Shift lever under the console plate. I would have it checked out first to confirm but I'm pretty sure that's what you need.

Jun 10, 2010 | Cars & Trucks

2 Answers

How to replace neutral saftey switch on a 1980 cadillac deville?


Use like reference guide for GM Cadillac 1967-1989 Repair Guide Neutral Safety Switch - REMOVAL & INSTALLATION

All Except 1985-89 Eldorado and Seville
See Figure 1
The neutral safety switch prevents the engine from being started in any transmission position except Neutral or Park. The switch is located on the upper side of the steering column under the instrument panel on column shift cars, and inside the shift console on floor shift models.
  1. Remove the console for access on floor shift models.
  2. Disconnect the electrical connectors.
  3. Remove the neutral switch.

To install:
  1. Place 1967-70 column shift lever models in Drive, and 1971 and later models in neutral. Locate the lever tang against the transmission selector plate on column shift models.
  2. Align the slot in the contact support with the hole in the switch. Insert a 3 / 32 in. (2.38mm) diameter pin in place. The switch is now aligned in Drive position.

1973 and later neutral safety switches have a shear-pin installed to aid in proper switch alignment so that insertion of a pin is unnecessary. Moving the shift lever from Neutral shears the pin.
  1. Place the contact support drive slot over the drive tang. Install the switch mounting screws.
  2. Remove the aligning pin. Connect the electrical wiring, and replace the console.
  3. Set the parking brake and hold your foot on the service brake pedal. Check to see that the engine will start only in Park or Neutral.
7b3f2a9.jpg

Fig. 1: Installation of a common neutral safety switch



ADJUSTMENT
See Figure 2
1974 and later cars do not have a neutral safety switch. Instead, these cars have an interlock between the lock and the transmission selector, which is non-adjustable.
  1. Place the shift lever in Neutral.
  2. Move the switch until you can insert a gauge pin, 3 / 32 in. (2.38mm) diameter, into the hole in the switch and through to the alignment hole.
  3. Loosen the switch securing screws. Remove the console first, if necessary.
  4. Tighten the screws and remove the pin.
  5. Step on the brake pedal and check to see that the engine will only start in Neutral or Park.
05843d3.jpg


Fig. 2: Adjustment of a common neutral safety switch


1985-89 Eldorado and Seville
See Figure 3

All neutral safety/back-up light switches come with a small plastic alignment pin installed. Leave this pin in place.
  1. Place the shifter assembly in the Neutral position.
  2. Remove the shifter lever-to-switch nut and the lever.
  3. Disconnect the electrical connector from the neutral safety/back-up light switch.
  4. Remove the neutral safety/back-up light switch-to-transaxle bolts and the switch from the vehicle.

To install:
  1. Position the shifter shaft in the Neutral position.

If using an old switch or the plastic pin (new switch) is broken, install a3/32in. (2.38mm) diameter pin gauge (drill bit) into the neutral safety/back-up light switch; the switch is then locked into its Neutral position.
  1. Align the flats of the shifter shaft and the neutral safety/back-up light, then, align the switch-to-tang on the transaxle. Torque the switch-to-transaxle bolts to 22 ft. lbs. (30 Nm). Remove the pin gauge.
  2. To complete installation, reverse the removal procedures. Make sure that the engine starts only in the Park and Neutral positions.
c796664.jpg

Fig. 3: Neutral start and back-up lamp switch - 1985-89 Eldorado and Seville

Hope help with this (remember rated and comment this). Good luck.

Mar 21, 2010 | 1980 Cadillac Deville

1 Answer

The car will net start it will not even trun over


if an automatic first check your neutral safety switch, try starting the car in neutral rather then park or tru "wiggling" about the shifter as you try to start it. Remove your battery have it checked; if it is fine look to your starter, remove it and have it checked and replace either as required.
I hope this may have assited you,
Tom

Oct 26, 2009 | 1994 Mitsubishi Diamante

1 Answer

Neutral safety switch


most gm nuet safety is yellow and purple .....out of ignition switch is a big yellow wire that is crank out and input to nuet saf switch......out of nuet switch is color purple that goes strieght to start selenoid.....purple wire also goes to the crank fuse 5amp.. in the fuse box under dash... this fuse goes to the pcm main computer.. same for auto and clutch

Sep 04, 2009 | 2004 Chevrolet Silverado 1500 Crew Cab

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