Question about 2002 Chevrolet TrailBlazer

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Misfire #2 cylinder

Check eng light on,, coad check showed missfire on number 2 cylinder, changed spark plugs... no help???

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  • Chevrolet Master
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The code actually means the cylinder is not producing any power.
Could be the plug, injector, coil, or crank sensor. Or a mechanical problem such as a stuck valve.

Posted on Jan 13, 2013

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Posted on Jan 02, 2017

  • 422 Answers

SOURCE: 1998 chevrolet k1500 pickup 305 a misfire in # 2 cylinder

hi there, if you can feel the misfire at an idle but not at a higher rpm than the fuel pressure regulator is bad im working on one right now that has mifire code and random misfire codes coming up

Posted on Aug 28, 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

davesmith_37
  • 94 Answers

SOURCE: cylinder 2 misfire on a 1998 chevy blazer

check your plug wires for tears and dont overlap them

Posted on Feb 27, 2009

tragedy lok
  • 266 Answers

SOURCE: misfire of the #3 cylinder, 4.3 6 cyl

R THEY WIRED CORRECTLY,WITH THE SAME GAP??

Posted on Aug 18, 2009

  • 14036 Answers

SOURCE: Code P0300 misfired detected. I have cylinder 1

sound like bad ignition module.make sure where coil pack set in module contacts is clean and making good contact.also make sure plugs and wires is good.

Posted on Jan 09, 2010

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HAD 2001 OLDS ALERO COMPUTOR CHECK SAID # 2 CYLINDER WAS MISSFIRING CHANGED #2COIL PACK STILL DIES WHEN SLOWING DOWN OR STOPING BUT STARTS RIGHT BACK UP DIES WHEN STOPPING OR SLOWING DOWN ALSO DIES AFTER...


Sounds like #2 is still missing. Misfires can be caused by an ignition problem, a fuel problem, or a mechanical problem where there is no compression in the cylinder.
Okay, you have changed the coil. Now try changing spark plugs and the spark plug wire-Swap #2 and #1 spark plugs and the plug wire too, and see if misfire follows now on #1. If it does, bad plug or bad plug wire. Of course you could just drop a new plug into #2 and see what happens. If no change, swap the plug wires and test again. If still misfiring, check the spark at end of plug wire-you need to see a blue snapping spark to know the ignition is working good on that #2.
If you have spark there, need to check if the injector is pulsing and spraying fuel into the cylinder. You might be able to feel the injector pulse if you hold a finger lightly on the injector while engine is running-should be a steady, rather rapid click feel to the injector. If not sure, have the injector circuit checked. You can buy an inexpensive "noid light" at auto parts stores, one that fits your injector circuit, plug it into #2 injector, and crank the car over or run the engine and watch the light-if working, the noid light will be blinking. This verifies the circuit is good. If the spark plug is wet with gas when pulled out, that would verify that injector is spraying fuel into the cylinder.
If still no help, have the compression checked in #2. Low compression from a valve problem or head gasket problem can cause misfires.
Good luck.

Sep 20, 2013 | 2001 Oldsmobile Alero

1 Answer

Missfiring detected in OLDSMOBILE intrigue 2002 3.5L


For engine misfiring problem check the help links mentioned below. Click the link below to go through the troubleshooting procedure :---- Engine misses and truck jumps? Hard to down shift? Issue with high gear only? http://technoanswers.blogspot.in/2012/02/engine-miss-and-truck-jumps-hard-to.html

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Bad miss at idle?

http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

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While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

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Engine Misfire codes for car?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html
Engine Misfire codes?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

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Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

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Oil on spark plugs and car misfires?

http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

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This will help.

Thanks.

Jan 30, 2012 | 2002 Oldsmobile Intrigue

1 Answer

I have a 1994 ford mustang 3.8 v6, when i bought the car it had a slite misfire,i bought a new coil pack, changed the plugs and wires, I hooked up the coed reader and it pulled up P0302. cylinder number 2...


check your compression, you might have low compression in that cylinder-also check your fuel injector in that cylinder, it may be damaged (wiring/connection) or defective.

Jun 01, 2011 | 1994 Ford Mustang

2 Answers

98 passat # 2 missfire help


If your getting a P0302 ( cylinder #2 misfire detected), the first thing to check is the spark plug. If it's new then the next thing to check is the plug wire. If it has individual coils, then swap it out with another one and see if the misfire moves too. If so then the coil is faulty.

May 07, 2011 | 1998 Volkswagen Passat

1 Answer

I own a 2002 mustang with v 6 eng.service eng light came on. pep boys retreived fault code that reads p0304.eng has new plugs and wires


P0304: Cylinder Misfire Detected (#4)

-Last number corresponds to which cylinder is misfiring.


Could be a faulty spark plug or wire. Try changing the spark plug from the 4 Cylinder to another and see what happens; If the different cylinder misfires, then it is the spark plug. If not, it could be the wires on cylinder 4.

Jan 04, 2011 | Ford Mustang Cars & Trucks

1 Answer

E201@yahoo.comi have a 2004 cavalier with the 2.2 eng the check eng light stay on an it alos blinks..the car has a miss in it while idiling or accelerating but at a stedy speed it runs fine an has good...


well the light is blinking because of the misfire it is setting a P0300 engine missfire detected, a plugged fuel injector will cause that misfire or a incorrectly gapped spark plug, also a bad egr valve will cause a rough idle and acceleration problems.but for a correct fix with out throwing parts at it will have to be done by a pro

Dec 18, 2010 | 2004 Chevrolet Cavalier

2 Answers

I have 1999 318 4x4 dakota with fault coads


These are misfire codes.This means that your vehicle is missing.The 300 is a random misfire and the 305 is for cylinder 5,and the 306 is for cylinder number 6.Check the plugs if they are good then you could have bad coils.They are top of the plugs.Hope this helps.Good luck.

Feb 25, 2010 | 1999 Dodge Dakota

2 Answers

I have a missfire code on the check engine light. 1997 honda prel


Find out which cylinder is missfiring by using an inductive timing light to check each plug wire for spark. If you find a dead wire you should replace the all the wires and spark plugs. If you don't find a dead wire check the distributor cap. You could have a broken contact or a crack which might cause a loss of spark at one cylinder.

Honda wires are much better than their aftermarket counterparts so don't skimp there.

I hope this helps. Good luck and be careful!

Dec 11, 2009 | 1997 Honda Prelude

5 Answers

Hi, I have a 1997 Porsche 993. Motronic 5.2 M07. I am getting these fault codes 1) 62 misfire emissions-relvant 2) 51 Cylinder 2 misfire emissions-relevant) 3) 54 Cylinder 5 misfire ...


misfire :-------- try checking your 02 sensors /fuel pump and filter.

for 51 cylinder misfire :---
Change the coil. Period. Very easy to remove from the vehicle if it's a 4 cyl. Follow that spark plug wire from the spark plug to the other end. What it's attached to you should replace
for 54 cylinder 5 misfire :---First you have to eliminate the most obvious problems, like spark plug and spark plug wire. If you replace those and you still have a misfire, then it's a good idea to look for a vacuum leak in the intake manifold

Mar 07, 2009 | Porsche 911 Cars & Trucks

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