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Engine shut off during spin-out - normal?

grosss

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grosss Enthusiast

grosss

Posted
Posted

I hit a patch of black ice this morning and stupidly didn't have 4x4 on, and ended up doing a few donuts on my drive to work.

 

When I managed to bring the truck to a stop, the engine was no longer running, is this normal? Was there an inertial shut-off/accident detection/ECM detection that tripped? I didn't hit anything, came to a complete stop and the key was still in the ON position so I didn't subconsciously turn it off... 99 Silverado, 5.3L.

 

I've had the engine almost stall out when idling cold and the steering is turned all the way recently so I'm wondering if this is a symptom of the same problem or completely normal.

 

Thanks for any input!

Zembonez Senior Enthusiast

Zembonez

Posted
Posted

I don't know of anything in the system that would shut off the engine automatically. I'd bet the sudden reversal of wheel direction when the truck was going backwards did it.

gmtech4 Senior Enthusiast

gmtech4

Posted
Posted

im gonna say its a conicedence

 

if that truck had a yaw sensor ,it would have traction control ,of course newer trucks have it but back then your truck didnt

 

clean your MAF sensor carfully

grosss Enthusiast

grosss

Posted
  • Author
Posted

IDK,! Probably scared the truck more than it scared you! :ughdance:

 

 

HAHAHAHAHAHAHA, yes, it was so scared it curled up and shut off. Wouldn't you?

 

Thanks for the replies guys, I figured it was a coincidence, was pretty confused when I tried to get out of the way of traffic quickly to discover the engine had shut off.

grosss Enthusiast

grosss

Posted
  • Author
Posted

I don't know of anything in the system that would shut off the engine automatically. I'd bet the sudden reversal of wheel direction when the truck was going backwards did it.

 

 

Yea, I thought of that, but couldn't remember a point when the wheels actually reversed direction, I thought I was going forward most of the time except for during the spin. But now that you have me rethinking it they definitely had to do that at some point, and some of it was a blur. I do clearly remember thinking "well, truck's a write off, this is going to hurt" and then was miraculously rewarded with another 180 within a few feet of the curb. :angel:

MikeNH Senior Enthusiast

MikeNH

Posted
Posted

I don't know of anything in the system that would shut off the engine automatically. I'd bet the sudden reversal of wheel direction when the truck was going backwards did it.

 

 

I'd place my bet on this too. Ford does (or used to at least) have an inertia sensor that would kill the fuel pump in something like that but it had to be manually reset. And it will trip (at least in a late 80s 5.0 Mustang) when you do doughnuts fast enough. Ask me how I know. :lol:

  • 2 weeks later...
jro909 Senior Enthusiast

jro909

Posted
Posted

i do believe modern vehicles will disable the fuel pump in accident type conditions...

KMGZ400 Senior Enthusiast

KMGZ400

Posted
Posted

i assume your talking about the 99 silvy in your sig...

 

 

my truck will also shut off during extreme speed drifts or slides.... one time my truck shut off while i was drifting on a gravel road going really fast so i drifted again the same speed and it did shut off again during the 4th drift. 2001 silvy

  • 2 weeks later...
j-ten-ner Senior Enthusiast

j-ten-ner

Posted
Posted

Is it not dangerous to cut the engine off just because of the truck is spinning?

You'll loose PS,PB ...and at the end total control over the truck.

I wouldn't like if my truck has got such a feature!

 

so long

j-ten-ner

doverarjim Senior Enthusiast

doverarjim

Posted
Posted

Were you able to restart the truck with out doing anything? I know that on some Fords they had a fuel reset in the pass side foot well that you had to press to get the engine to run again after it shut it off. I did some quick spins in my 99 but it did not shut off. :jester:

  • 2 weeks later...
zedbear Enthusiast

zedbear

Posted
Posted

I once read somewhere that this can happen with any automatic transmission equipped vehicle under the right conditions, such as spinning the wheels and snapping the throttle closed at the right moment, doing donuts, etc. Something to do with the TC reversing or freezing up for a brief moment, causing the engine to stall. Sorta like not pushing in the clucth on a manual trans when rolling to a stop. It's happened to me a couple times in my younger days of whipping donuts in snow covered parking lots, lol.

grosss Enthusiast

grosss

Posted
  • Author
Posted

Yea I just had to throw it in park and turn the key and it started right up. Of course... at first I just tried turning the key... then realized I was still in drive! hahah.

Black2011 Enthusiast

Black2011

Posted
Posted

I don't know of anything in the system that would shut off the engine automatically. I'd bet the sudden reversal of wheel direction when the truck was going backwards did it.

 

 

I'd place my bet on this too. Ford does (or used to at least) have an inertia sensor that would kill the fuel pump in something like that but it had to be manually reset. And it will trip (at least in a late 80s 5.0 Mustang) when you do doughnuts fast enough. Ask me how I know. :lol:

 

 

Its a feature many older fords had. its simply a metal ball held in place by a magnet. with enough force, the ball drops and cuts power to the fuel pump. I had one wear out and the truck would die on washboardy gravel roads. lol inconvenient...

BlackZ71Silverado Senior Enthusiast

BlackZ71Silverado

Posted
Posted

OP, That's perfectly normal, it does that to protect the vehicle from severe damage. The reason it shut off is because at some point, your wheels spun backward while you had the truck in drive. No big deal, it is supposed to do that, nothing to worry about.

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