99 V6 misfire in cylinder #5

[99COBRADROPTOP]

whats goin on guys,
Well just the other day my brother was on his way home from school and his car started "shaking and sputtering". So we take it to a shop, and they come back saying, theres a misfire in cylinder #5, there is one bad coil, and we need to have the "ignition module" replaced. They price it out to be $1700:eek: So we decided to take matters into our own hands. We've decided to replace all 6 plugs, the bad ignition coil, plug wires, and o2 sensors. Does anybody have a link or a writeup on how to go about changing the plugs, wires, and coil?? i've never changed the plugs on a camaro before and the engine bay looks pretty tight so if theres any tricks anybody could share it would be greatly appreciated. Sorry for the long post. .

Thanks,

Bryan S.

[mrhobbz]

Re: 99 V6 misfire in cylinder #5

whats goin on guys,
Well just the other day my brother was on his way home from school and his car started "shaking and sputtering". So we take it to a shop, and they come back saying, theres a misfire in cylinder #5, there is one bad coil, and we need to have the "ignition module" replaced. They price it out to be $1700:eek: So we decided to take matters into our own hands. We've decided to replace all 6 plugs, the bad ignition coil, plug wires, and o2 sensors. Does anybody have a link or a writeup on how to go about changing the plugs, wires, and coil?? i've never changed the plugs on a camaro before and the engine bay looks pretty tight so if theres any tricks anybody could share it would be greatly appreciated. Sorry for the long post. .

Thanks,

Bryan S.

Tip; plugs are easier to do from under the car by a lot.

[Moses]

Re: 99 V6 misfire in cylinder #5

Where are you located?

Anyway, if the ICM is bad it needs to be replaced...don't be like me and ignore it...haha, it finally physically broke on me.

Plugs and wires are intimidating at first, but if you have the tools necessary ( not even the tools that help get it done. ) it can be done.

It takes me about 30-45 minutes to do my plugs and wires. My first time took me 2 hours, second time took me about 1 1/2 hours.

I just unplug all the wires ( I memorized the cylinders and firing order, I wouldn't recommend it unless you have something to tell you what they are. )

IIRC cylinder is position is like this: ( Looking from front of vehicle. )


Rear of Engine
6 5
4 3
2 1
Front of engine


and IIRC the coil packs firing order is:

Rear of Engine
__
1 - Post 6
4 - Post 5
__
5 - Post 4
2 - Post 3
__
3 - Post 2
6 - Post 1
__

Front of Engine

If you do it my way, write down what I posted and don't forget it!!!! lol I just happened to memorize it.

Also, make sure the engine is cold, I've had to change my plugs with the engine still hot and it wasn't pretty. :( Cylinder 6 is the hardest to get to, with cylinder 3 being the second pain in the ***.

With Cylinder 6 I reach back in there ( usually while laying on the front of the car ) and put the spark plug socket on there ( 5/8ths ), and I have a sightly larger extension I slip on that allows me to put the rachet in an open area without obstruction. I can possibly get pictures to show you what I'm talking about.

Oh...and good luck.

[99COBRADROPTOP]

Re: 99 V6 misfire in cylinder #5

Yeah i've already got all the tools needed for the job and extensions of all sizes, going at it from underneath makes perfect sence seeing how tight the engine bay is. Thanks for all of the advice, should i pull the wires off in any certain order and replace them in any certain order? My car has COP's so i've never changed plug wires before.

Thanks again!!

[Moses]

Re: 99 V6 misfire in cylinder #5

Usually people take a certain wire off, change the plug, replace the plug and wire, and then continue. Just like coils and distributors.

But yeah, I know what you're talking about, a friend of mine has an 07 stang... :)

[youngsc]

Re: 99 V6 misfire in cylinder #5

You can do it all from the top. Took me about 45 minutes the first time, Wait till it cools obviously or your hands will look like ****. Do one at a time so you don't screw up the firing order. Coils are same thing one at a time. Hardest thing out of all that would be the O2 only because of how they usually get torques down and the angle you'll be at. Worst case spend a day buy a 12 pack and no worries.

[cam98aro]

Re: 99 V6 misfire in cylinder #5

wouldnt a bad coil have two misfiring cylinders?

i would look into the fuel injector being bad for that cylinder, same thing happened to a buddy of mine

[Mogobs30th]

Re: 99 V6 misfire in cylinder #5

wouldnt a bad coil have two misfiring cylinders?

i would look into the fuel injector being bad for that cylinder, same thing happened to a buddy of mine

Not always...but a bad ICM is going to mess up alot more than one plug, that much I do know.