Question about 2004 Chevrolet TrailBlazer

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Where are the spark plugs and wires in my trailblazer i cant find them

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4.2 vortecs have individual coil packs located onthe vert top of the engine you have to remove the plastic intake thats sitson topand each individual coil pack to get at the plugs

Posted on Feb 16, 2011

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I have a 2004 chevy trailblazer with 4.3 v6,and it started to run rough like its missing. how do i figure out if its the injectors or the coil pack and wich one


Sounds like a bad wire, or at best a bad connection. Verify all of the conncetions, at both ends. Make sure you don't take more than one wire off at a time. If you connect the wrong wire to the wrong plug the car will run like a junk heap. A bad coil usually means no spark.

Apr 28, 2014 | 2004 Chevrolet TrailBlazer

1 Answer

#3 cylinder not firing. changed sparkplug. as i accelerate the problem (shaking) seems to inprove. when going slow i have a bad shake in the trailblazer


It could be the spark plug wire, or the coil. 2004 model you should have coil over plug (C.O.P) setup. Also check for any signs for arcing around the spark plug boot area and around the coil. Any white or gray lines on the boot area or coil is an indication of arcing. If arcing is happening, the current will take a short cut to ground instead of jumping the gap at your spark plug, thus giving you a "no fire" situation. I also ways recommend replacing spark plugs in a set along with new wires. I don't recommend just changing one.

Sep 24, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

I have 2004 chevy trailblaser i change sparpugs but motor shaking a lot whats the ploblem and solution cant enybary help


you have crossed two of the wires. 5.3 liter is 1 8 7 2 6 5 4 3.....4.2 liter is 1 5 3 6 2 4 ... If they are not crossed double check the spark plug wires for any breaks of bad plug boots and make sure the wires are not touching the minifold this will cause the spark to jump

Jun 10, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

2002 chevy trailblazer check engine light went on, took it to autozone they said it was a misfire in cylinder number 3, and that I needed to replace sparkplugs and wires. could this be the problem?"


Yes it could but without further diagnosis it's difficult to be sure. Manufacturers suggest platunum spark plugs be replaced after 100,000 miles. If your close to this it would be a good idea to change them anyway. While spark plug wires can fail they don't normally wear out like spark plugs. They can very easily be checked with an ohm meter. I wouldn't replace them unless I found a problem with one or more of them.

Apr 12, 2011 | 2002 Chevrolet TrailBlazer

1 Answer

5th cylinder misfire 2002 trailblazer. Spark plugs changed and continues to sound rough


Check for these:
  • Bad spark plug wire;
  • Bad or dirty contact in distributor or multi-coil terminal (you may also have a loose plug wire here);
  • Fuel injector clogged or not operating reliably.

Mar 12, 2011 | 2002 Chevrolet TrailBlazer

2 Answers

Where do i find spark plugs and wires on chevolet trailblazer 2002


The spark plugs are located normally near the value cover where you put in the oil. The wires run from the spark plugs. If your vehicle is a 4 cylinder then there will be 4 spark plugs. If it's a 6 cylinder there will be 6 spark plugs.

Nov 28, 2010 | 2002 Chevrolet TrailBlazer

1 Answer

Hi my friends Trailblazer won't start. We have ruled out the battery the starter the cylanioid and battery connections. Any ideas?


Now you need to check for spark. Pull a plug wire, and insert a loose plug in the disconnected wire. Crank the engine to see whether there is spark across that gap.

If there is, reconnect the plug wire, take the hoses or whatever off where the air goes in the engine (I am presuming this is fuel injected), and spray starter fluid in the throat, and see if the engine will show signs of life. If it does, you have a fuel problem.

Jun 25, 2010 | 2004 Chevrolet TrailBlazer

2 Answers

Need to locate the Spark plugs ?


look at the distributer and follow the spark plug wires from it out to each spark plug but each wire as u pull them. dont take all off at once . or u might not know how to hook them all back the right way.

Feb 01, 2010 | 2002 Chevrolet TrailBlazer

1 Answer

Where are the spark plugs on my 2003 chevy trailblazer?


on the both sides of the engine they probably have coils sitting on top of them instead of plug wires

May 16, 2009 | 2003 Chevrolet TrailBlazer

1 Answer

Location of spark plugs


carmen.... locate the coil pack.... it has 6 wires going into the top of it. follow each of the six wires from there... they end at the spark plugs. if that motor is mounted sideways... which i doubt as i believe that is a rear wheel drive truck it should be pretty straight forward.

Robert

Sep 26, 2008 | 2006 Chevrolet Trailblazer

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