Inertia Switch/Impact Sensor: Disassembled & Explained • Cars Simplified

[@ExtraSimplified]

Why Cars Have Fuses: kzbin.info/www/bejne/gaW1foN_rb2DbdE How Relays Work: kzbin.info/www/bejne/qmanhmiubL-tbZY Inside Oxygen Sensors: kzbin.info/www/bejne/hGXUq36Lqa-Kh6M

[@temisandboard]

Simple and Direct Explanation. Congrats

[@davemcguigan218]

Thanks for showing this! I had always heard of these but never knew how one worked!

[@CarsSimplified]

I had a general idea, but this was my first time seeing this exact design!

[@CreepyGomez]

Great video! I`m in the process of installing a LS V8 into a 1982 Volvo 240. I WILL install this fuel pump shut off inertia switch! Accidents happen, why take a chance of being burned to death if trapped in the wreck...

[@doublewide420]

Very cool view of the switch

[@JDirks2]

Great video, thanks for making it!

[@deportliberals7785]

I put one of these on main fuel pump on my homebuilt airplane but not on my backup pump. thanks for showing ho it works.

[@SalemDoyle]

cool vid. I remember having to find this switch on my brothers Focus after an accident. never seen the inside though.

[@CarsSimplified]

How difficult was it to find?

[@SalemDoyle]

@@CarsSimplified Not very, if I remember correctly it was in the passenger side floor board behind the kick panel

[@jhuntosgarage]

Well done!

[@CarsSimplified]

Thanks!

[@killawattgarage]

Nice!

[@GeorgeJFW]

Nice job man I have never had a chance to open one up there ultra simple!

[@CarsSimplified]

Thanks! Yeah, they were a little different than I remember hearing about them, but super simple indeed!

[@diazmaldonado]

Muy bueno :) From Chile

[@hubercats]

Thank you!

[@TSRGarage]

I am building a heavily modified car. It originally did not have a fuel cut off impact switch. I am planning to add one (not safety third in this case🤣) After seeing your video on this particular switch this is the one I'm going with because of its simple reset ability.

[@tinalara-ortega8126]

I like to see the function of a mechanism. Also I am working on replacing my switch. Thank you. Thank you.

[@AztecWarrior69_69]

Thank you for this video. I am doing some electric fuel pump upgrades, on my friends El Camino that he is getting up and running again. He wants to have an Anti theft switch that you need to find and press before the pump can work, and one of those oil pressure switches, and was wondering how hard it be to add one of these. Thanks to you I now know it's a synch. TY

[@Allroundfixer]

Very nice video, and without annoying stupid music.Thanks.

[@luckyPiston]

Can that magnet get weak and the ball start moving around in there and cause intermittent power flow interruptions without doing a full trip out ?

[@johnknox5692]

i would say yes it happen when my car was parked in parking garage. drove in towed out my wife was driving car

[@luckyPiston]

Actually `to answer my own question a year later "Hell ya" this unit can fail , found out first hand with the engine quit running while im bombing down the hy-way , u hav to completely key off in neutral while coasting to restart the engine , just a little scary as u are briefly locking the steering , slam it back in drv and carry on but still better to swap in a knowing good switch

[@bonganimahlangujb616]

Where does the impact switch located in Ford focus 1.8 tdci

[@poncerafael8833]

Thanks clear and fast

[@clenso24]

Where is it located in the car

[@CarsSimplified]

This particular one was on a Ford SUV behind some plastic trim next to the passenger's right foot. I pulled this off of a salvage car, though, so there may have been some soundproofing material between it and the plastic panel. Other vehicles, if they have one at all, may have them in different locations.

[@readyhouse]

Obviously it goes off in a head on collision but if a car were hit side on will it also go off?

[@CarsSimplified]

Ideally, yes. The mechanism looks like it is focused on two directions, but a strong enough impact from front, rear, sides, or top should knock the ball out of place.

[@yessuhyessuh2100]

My brother just smacked a pole with the rear end of his suv and it went off

[@alanmesfin]

Thank you for this informative video! Before today I didn't even know the inertia switch existed... Is it possible to wire a switch into its positive feed to act as an immobiliser? 🔒

[@padillaanthony66]

Will a Ford f150 pickup have this switch

[@RonaldMartorana]

Where is it located on a 2018 Chevy Cruze

[@elvispreslee1000]

Hi, thanks for the great video! Would you know what voltage should be on the pins, as I have one of these inertia switches on my 1995 Fiat Ducato diesel motorhome and there isn't any voltage on the pins. I'm currently fault finding on the motor as it cranks but doesn't start. There doesn't seem to be an electric fuel pump on it, only the main mechanical fuel pump. I cracked open the injector fuel pipes (one by one) that supplies the diesel fuel to the injectors. But only 2 injector fuel pipes were showing fuel squirting out as the engine was cranked over. So I'm wondering could it be this fuel inertia switch?? So I did a resistance check on the pins and when the button is pushed down in the correct position there is no resistance on either side, from the left pin to middle pin ( C NO) and from right pin to middle pin ( NC ) which there should be a resistance on one side, when the button is pushed in, is that correct? But when the ball is knocked out from its position ( like in a crash ) then there is a closed circuit resistance reading from one end pin to the middle pin (C NO) and an open circuit reading from the other end pin to the middle pin ( NC). Which I assume is correct. Also do you know if there should be 12 volts on it? Any help greatly appreciated. Thanks, Regards, Karl

[@Jim-ee6pz]

My '94 F-150 has dual tanks/fuel pumps. I'd like to install an anti theft switch to kill the fuel pumps by using one of the inertia switch wires. Which wire is best to install my kill switch in between? Thank you.

[@CarsSimplified]

I would have to look at a wiring diagram for that particular vehicle, but the only safe place to put it is between the inertia switch and the pump; cutting power to the inertia switch would also cut power to whatever it turns on for safety after a crash. If you know what color wires connect to the fuel pump motor, check for that wire at the switch. Also, are you planning on using a relay, or a high amp switch?

[@Jim-ee6pz]

High amp switch.

[@wakasama5281]

its a sensata switch?

[@ratcat7668]

My Lotus Elise broke down the other day - this was the problem!

[@deloisrichardson6054]

Hi where is the inertia switch on/jaguar2005

[@johnarterberry5275]

Good video - suggestion, a pointer with an actual point would be more helpful.

[@GaryCharleS-l6w]

Where is the inertia switch on a 1988 mustang 5.0

[@gsr2envy]

I just looked at a 2004 ranger. With a no start problem. The switch had a connector that was burnt and terminals were not making contact. I put a jumper wire between the two terminals and the car started. My question is. What caused the connector to get burnt and melted? Any ford technician out there leave a comment below.

[@djskinner4104]

Okay where is the fuel inertia switch for a 2002 Chevy Silverado

[@Coastal0]

How much of a knock is usually required? And where do you buy them? Edit; not much force apparently! More autoparts insides please!

[@CarsSimplified]

They are some of my favorite videos to make, and I have at least three big components waiting for me to open them up! I still need to crack open that Montego alternator... The others are a surprise!

[@marshalllyles564]

Part 563 Federal rules states that deceleration exceeding 5 mph in 150 milliseconds will wake the box up and collect data usually 5 seconds of speed, braking and much more. Pretty close to a 12 to 15 mph impact will pop the bags. So many variables can happen. I have downloaded hundreds in crashes - never had one pop because of hard braking "until it hit the tree'.

[@JaswinderSingh-ne8jw]

jaswinder ssingh auto elec works best video

[@ezwa9979]

Gr8 video I hit a bump in rOd & now, in addition to having nO fUl, or transportation, or job, for a wEk(fUl pump which I problE dOnt need is almOst hEr from ebay).. NEwA, in addition to all that & all the walking Iv Bn dUEng all wEk, & the tO truck chRg, etc., etc. - I noO nO Y my switch wOnt click doOn, cas the flat metal gizmOs on top hav Bcom Dtached in some wA so it wont lock/clik(not a 1 tImR, Iv chAngd fUl pump & reset it in pSt), Il gO by-pS the bStrd & fix switch or grab Nothr.. bt hUdve thunk?, 2 small flat Pcz of metal at bottom of buttN(which duzNt click doOn, doesn't click PrEad.. just EzLE lingrEng flush with switch hoOZng) in wat I noO nO, fashionablE l8 I mIt add, is the triggered, 'tripd', disconnected, up position.. 2 littL stinking pApr-clip sIzd Pcz of metal.. not srprIzd👋☹

[@mariagarcia9017]

EzOE ??????????

[@ezwa9979]

U hrd me😒

[@mariagarcia9017]

@@ezwa9979 🥺😁😊

[@carloscastiano]

Cheese stick

[@sherryerickson8651]

Where is it located on the car