Question about 2001 Chevrolet S-10

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My chevey 4.3 vortech s10 feels like it is running on 3 cylinders missing really bad and had sparks coming out the exaust what could that be?

Vortech 4.3

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  • 100 Answers

Catal converter comin apart

Posted on Oct 27, 2012

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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alpha4
  • 42 Answers

SOURCE: dumps raw gas into engine

Just a few things to check. Take off the fuel filter and make sure there is no water in it. If you have put in different spark plugs than AC Delco, then change them to AC Delco. If you haven't looked at the plugs or the fuel filter, then it is way past time to replace the filter and new AC Delco spark plugs only. These places that insist that you use Bosch plugs or split fire plugs don't know ****. The Delco plugs are made especially for your engine and will out last those cheap non-working Bosch plugs.
If the fuel filter and plugs don't fix it, make sure your air filter intake isn't stopped up with a bird's nest. Happens a lot. If it still misses after new plugs, you may have a fuel injector sticking.
The bad smoke is the gas-thinned oil passing the rings and unburnt fuel smoke. The missing really bad is most likely fuel soaked spark plugs. Make sure you change the oil while changing the plugs or you will have a redo. Let us know if any of this helps. Dale

Posted on Dec 19, 2008

  • 217 Answers

SOURCE: 1998 Cavalier No Spark in cylinders 1 & 4

ignition mod. grounds,pcm or timing belt could all be it but, I would have to look at timing first.

Posted on Jan 17, 2009

Just_Bobz
  • 448 Answers

SOURCE: 1993 Chevy Cavalier 2.2 not firing on 2 cylinders

The reason I'm asking this is because a dual coil fires BOTH plugs at the same time. If one plug doesn't fire right, the other won't either, even to a point that neither does. Kepp the coils where they are and swap the plugs and wires and see if you have a change. Let me know

Posted on Jan 24, 2009

tragedy lok
  • 266 Answers

SOURCE: Chevy S10 Stumbles really bad until temp gauge

get u a heat gun and check ur temp on the exhaust manifold while truck is running bellow each plug the one misfiring will be considerably cooler then others,theres ur misfire

Posted on Oct 18, 2009

csmock132
  • 4669 Answers

SOURCE: Has no spark to plugs.

Crank sensor or Ignition module. A part store should be able to test the module. If you have no way to test them, the crank sensor is cheaper.

Posted on May 17, 2010

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I have a 2003 mitsubishi galant ES 4 cylinder and have a check engine light message on i had the code read at auto zone and they told me the third cylinder is misfiring and when it idles it jumps around...


Misfire means you need spark plugs replaced. Or spark plug coils.

That's why the whole car starts shaking because its running basically on 3 cylinders and not 4 as supposed. There is no gas compression on the 3rd cylinder because once again the spark plug is "misfiring"

There also might be even a bigger problem which could be the distributor cap where the coils are connecting outside the engine.
once you fix the problem the check engine will turn off immediately

hope that helps.

May 29, 2010 | 2003 Mitsubishi Galant

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Cylinder number 3 misfire


It can be a bad spark plug, plug wire, burnt valve, blown head gasket, or worn piston rings. Replace the spark plugs and plug wires and see if the miss goes away. If it does not then have a compression test run on the engine. In addition if you are loosing coolant with no apparent leak, and you see white smoke coming from the exhaust you may have a blown head gasket which will cause a miss.

Dec 08, 2009 | 1998 Buick LeSabre

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I have a 2000 buick lasabre that has been running very rough, my son put computer on and it said bad o2 sensor, he replaced sensor, and it is still running rough, but the computer now says cylinder 6...


plugs and or wires.
for some reason the spark is jumping out of the wire or plug.
the plug insulater may have a crack in it.
also use a carb spray to clean out the throttle body at the throttle plate.
all the black carbon will build up around the throttle plate and restrick airflow at an idle position.

hope this helps
thank you
jm

Aug 26, 2009 | 2000 Buick LeSabre

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02 cavalier with no spark on cyl 2 and 3


did u replace the wires? You might have power but a bad connection to the spark plugs or just bad spark plugs. just a thought

Aug 17, 2009 | 2002 Chevrolet Cavalier Coupe

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Missing in every gear..


you have to see if the coil pack fire up do you have spark coming out of the coil pack cylinder 2 never mind the other code the missing cylinder make the other sensor malfonction check if you have spark coming out of the coil pack if not change the coil pack if you have you spark check the compression let me know pierre please dont rate right away we work together to fix our problem because i whant you to get our car running good and i whant a fixya anything else is bad for me thanks pierre

Feb 25, 2009 | 2002 Mitsubishi Lancer

1 Answer

Why dont i have spark on 2 cylinders


bad coil pack? Do they all come from one coil with 4 taps? Get new coil

May 16, 2008 | 1997 Ford Escort

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