How To Replace Neutral Safety Switch 1992-99 GMC K1500

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The neutral safety switch is a safety device that does not let your vehicle's engine start unless the transmission is in neutral. If the switch is malfunctioning, or failed, you may not be able to start your vehicle! This video shows you how to install a new neutral safety switch in your 1988-2002 GMC K1500.
• Check here for more videos on the 1988 to 2002 GMC K1500 Sierra: • GMC K1500 Sierra 1988-...
This process should be similar on the following vehicles:
1988 GMC K1500
1989 GMC K1500
1990 GMC K1500
1991 GMC K1500
1992 GMC K1500
1993 GMC K1500
1994 GMC K1500
1995 GMC K1500
1996 GMC K1500
1997 GMC K1500
1998 GMC K1500
1999 GMC K1500
Tools you will need:
• Flat Blade Screwdriver 1aau.to/oa/1AXAA00013
• Pry Bar 1aau.to/oa/1AXAA00020
• 13mm Socket 1aau.to/oa/1AXAA00015
• 15mm Socket 1aau.to/oa/1AXAA00015
• Trim Tool Set 1aau.to/oa/1AXXX00006
• Ratchet 1aau.to/oa/1AXAA00016
• Socket Driver
• Socket Extensions 1aau.to/oa/1AXAA00015
• Rust Penetrant
• Floor Jack 1aau.to/oa/1AXAA00068
• Jack Stands 1aau.to/oa/1AXAA00065
• Wheel Chocks
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GMC K1500 Sierra 1988-2002 4th Gen: • GMC K1500 Sierra 1988-...
⚠ DISCLAIMER:
While TRQ strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. TRQ is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

[@TRQ]

√ *Watch the Video* √ *Buy The Part at 1A Auto* 1aau.to/m/Shop-TRQ-Parts √ *Do it Yourself* √ *Save Money*

[@danielhorowitz9300]

Absolutely the best video I've seen on this repair. Probably one of the best repair/service videos I've seen, period. Clear step by step instructions. Well done.

[@James-it5gr]

Just replaced my switch, directions and guidance are spot on with the exception of the plug is glued in from the factory, nice even heat from a heat gun will help.

[@edcrabb]

One thing... You forgot to mention that almost ALL GM TRUCKS (92 to 99) have the connectors silicone glued to the PRNDL switch at the factory. It is nearly impossible to unplug those connectors without breaking the switch. Your truck obviously has had the PRNDL switch replaced previously, because the cable connectors were not glued in place. So the real replacement process needs to tell the end user that they can try to remove the cables, but the switch will break just behind the connector socket on the PRNDL switch.

[@TRQ]

+Bubba Gump Thanks for the tip! We'll pass this info along to our production team. 1aau.to/m/Shop-TRQ

[@brandonsmith340]

I just had this happen to me today man.broke the top one on a good unit.now I gotta save the old one or buy new.

[@robertzeth5249]

If u take a heat gun to the plugs it softens the glue and they pull right off then ieven had to heat some up to putt back on before even a good hair dryer will work

[@pastormichaelhibbertminist7486]

Thank You!!! you are thee ONLY one that tells us that it need to be in NEUTRAL 1st!!! Thank you sooooo much!!! Merry ChristMAS!!!

[@flowerchild777]

Super easy IF you have your truck IN THE AIR👍 Thanks for the demonstration

[@Easyal159]

This is a good video for a do it yourself er, I have a slippage in my 2003 envoy, and by me watching this video I feel that it will solve my transmission problem.... Thank you....

[@adammatis5527]

Honest question, wouldn't it save a step to start the job with the truck already in neutral?

[@mikehill4910]

Will the neural safety switch not letting car start keep transmission from shifting out of n neutral if you jump the starter

[@soulohthru2973]

Man I’m hoping you can help because no one else responded. I have a 97 k2500, the clutch only starts when in a very specific position and also will start in neutral. Starter is fine, ignition cylinder is brand new, distributor is brand new and cap/ root is great. Plugs and wires less that 50,000 miles. Is that a sign of something related to the clutch? Is there some sort of clutch safety switch on a manual transmission? I keep seeing the problem could be a clutch or neutral safety switch but only in automatics.

[@willg.5168]

Is this part difficult to change on a fwd vehicle, particularly a '92 Fleetwood?

[@raleh1]

That part is going to fix my reverse lights to turn on ? Manual transmission gmc sierra 98 The reverse gear doest press the switch light inside the gear box, Brand new switch when I press the switch manually my reverse lights turns on .but doesnt work when is intalled ,Can you help me ? Thanks

[@diyspeed]

Hey, would a bad neutral safety switch cause my 1998 K 2500 to go into drive intermittently while the vehicle is in neutral? I noticed when I had the rear end on stands, that if the vehicle is running and in neutral it kept engaging into drive on and off

[@kylemilford5968]

No. But it's pretty normal for wheels to spin in neutral while free revving simply from the harmonics and friction drag

[@obrienwest3542]

If t this switch is not correct will it cause the transmission to not shift gears? Ex. 1st-2nd then not shift into 3rd or 4th

[@robbiethegreat6442]

I just recently replaced the one on my truck (98 gmc1500) but im having troubles with the gauge not lining up n it not going all the way back into park on the switch what do I do

[@charlyramos7921]

Thanks help a lot

[@heyzueskreest]

Does this switch also affect the reverse lights?

[@migoabu3928]

Would this cause my 99 Yukon to not rev past 2000rpm ? Starts drives and idles ok just won’t go past 2000rpm when driving any thoughts ??

[@jus10inla]

Not like this on the 92-94. Only on 95 up.. on my 93 its on the console under the steering wheel.

[@davidhayes7816]

What is that cable that attaches to it

[@brandonsmith340]

Grate video

[@b.bryant]

ok so ive done the replacement now i have another problem i can shift from park to drive but cannot go from drive back into park unless i do it manually under the truck at the transmission been racking my brain like crazy

[@connorferrara6780]

Did you change your transmission/shifting cable if you did then make sure to adjust it mine had the same problem

[@zaymoney1698]

I had the same problem and got a new cable and tightened up but it doesn’t go into park I mean it does but it doesn’t read it if that makes sense so Everytime I start it I have to put it in neutral

[@levigrafton6854]

is this the same on a manual transmission?

[@blairnelson635]

I’m having issues starting my truck. 97 chevy. Everything in the starting system is new. Even the relay & ignition switch. Still nothing when I turn the key. But if I jump the relay it starts right up. Could this be my problem?

[@Gucci_Peralta]

Does it start in neutral position?

[@erichhippe85]

About the best video on this very informative thank u

[@adrianflores276]

Buenas tarde me gustaría aserte una pregunta la chevrolet astro van mía me está bontando aceite por ai que tengo que aser me puede deser . Y también como se llama el retén que lleva a dentro de esa parte

[@asymptoticsingularity9281]

What?

[@davidhayes7816]

What is the wire connect to it? That’s what’s broke and I’m not sure what it’s called

[@Gucci_Peralta]

You referring to the Shifting cable?

[@bryandyer3172]

Verygood

[@user-ks4sm2lo1n]

Looks like you wired new plugs on it before you made your video, mines full of sticky shit from factory

[@noecampos1359]

93 silverado dont have that cain of swicht

[@googleplygoo5282]

🇸🇦👋🏻