Engine Dies and Then Starts Right Back Up


1996 Chevy Blazer. 6 cylinder engine.
While driving on the highway my Chevrolet Blazers engine just shut off. I pull over, wait a minute, then start the engine and continue down the highway again. A minute later the engine shuts off again. This happens 7 or 8 times. Everything is fine for a week then it did it again. Why is the engine shutting off?

No warning lights come on and all the gauges are normal. I got the garage to scan computer and they said no codes were coming up. So the blazer starts fine and runs fine just shuts off whenever it feels like without warning. Any suggestions?

 

Answer: This could be a problem of a failing fuel pump. This is pretty common on this truck. Normally this would cause the truck to sort of stumble before it stalls. If it just instantly shuts off like you are turning the key off, then it may be a problem in the ignition switch in the steering column, or an ignition control module. It may be hard to find, especially if it starts right back up. Would need to have a fuel pressure gauge on the engine and watch to see if it drops as it stalls, and if it it is low when trying to restart- and it won't. Pressure needs to be at least 55 PSI.

You can also try tapping on the ignition switch to see if you can cause it to stall. The lower steering column cover would need to come off to the access the switch.


S-10 Cranks Wont Start

1992 S-10 Pickup V6 4.3 4WD Vortec V6. GM Computer codes = no
Got new battery installed.
Truck ran fine never had problem until now truck cranks fine and strong also fuel pump starts for 2-3 seconds then turns off left for 2 days came back would not start. Was hot humid and raining out but never a problem before with starting when left truck without running before thank you.

 

Answer: The fuel pump should run for 2-3 seconds with the key in the ON position, not cranking. It should run constantly while cranking. Need to have fuel pressure checked. Even though the pumps runs, does not mean the pressure is high enough.
Wet weather can cause a no start problem if the distributor cap, rotor, ignition coil or coil wire, or spark plug wires are faulty. The spark will jump around and cause it to not start. The cap and rotor are most common, although the coil and coil wire will do the Same. You can try and spray water from a spray bottle on these items when it is running to see if it starts misfiring or you may even see the spark jump out of the coil or coil wire. But just inspect them first to see if they are corroded.

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  • Guest - Danny

    My s10 blazer goes dead when driving with headlights on but will crank right back up just can't run headlights or it kills the motor

  • Guest - Tom

    In reply to: Guest - Danny

    Sounds like you have a ground problem. Check all the ground wires to the motor and to the body under the hood.

  • Guest - Danny

    back up just can't run headlights or it kills the motor could it be a sensor problemo what do you think .

  • Guest - Shanon

    Gmc jimmy 4.3 will sometimes die while driving in highway when i let off the accelorater pedal.

  • Guest - kim

    my 95 blazer when coming to a stop and braking it idles high and rough sounding and it sputters and will clink and clank as stoppung and almost dies no engine light on what could be causing this.

  • Guest - Bill

    In reply to: Guest - kim

    Your engine may have a vacuum leak. That will cause idle problems.

  • Guest - James

    Replaced RF wheel bearing from growling noise. Noise better, but still occasional clicking and snagging. Today I thought it was locking up, it snagged so bad. What is causing it

  • Guest - Ella

    My elcamino miss a couple of times then shut off wait couple of min and it restarts what is it

  • Guest - Ella

    My 78 elcamino runs great when it's cold. Then it will miss a couple of times and shut down. After a couple of minutes it will restart

  • Guest - Chris

    It dies within 15 sec of u driving but i can put it in nuteral and turn the switch off thw crank it rite back up but it does the same stuff over and over

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