Okay so the nut between the seat and the steering wheel came loose this morning and I drove through some water that was running down the curb on the way to a stop sign (It was raining like the ****ens), nothing unusual there. Then I get to the stop sigh and chuga chuga ghuc, rough idle! SOB runs like a chebby. Now I imagine that I got some water in a spark plug hole or something of the sort. How do I determine if it's a cracked boot, whick cylinder it is etc? Of all the puddles I've flown through this is the first time I've ever had a misfire or hesitation problem.

 

Nobody? I KNOW that this has been covered before, I just can't find the right thread using the search feature.

 

You can go to Autozone or most parts stores and see if it is throwing a misfire code (sometimes this code doesnt set off the CEL).

Otherwise you'll just have to go one cylinder at a time and blow out any water and dry out the coils.
More than likely your coils and boots arent bad, they just need to be dried out.

 

Thanks, I'll see what I can hook up.

 

This may sound a little hokey, but it has worked for me. When I was carrying Jannah, I purchased a baby heart beat monitor. The one I have uses an external microphone. I have used this device to “hear” arcing within the spark plug booth, vacuum leaks, to tell me when the plug wire has seated on the spark plug (snap click sound), find a faulty injector, intermediate sound and you can hear the spray noise and compare it to others, listen to the gas flow noise in the fuel rails (listening for abnormalities), listen to the EGR valve, the IAC and other items. The monitors are cheap.

 

I'll try it. I have one sitting right next to me that we never use.

 

Haven't gotten into it yet, but she's still running rough. One benefit ot true duals...I know it's the drivers side bank.

 

Pulled the codes and found out that I had a missfire on cylinder 6. I changed all of the plugs but I still had a missfire and a stumble. Anyhow, it turned out to be a bad coil, replaced it and so far (knocks on wood) things are fine.

I ended up putting 12 spark plugs in a V8 that night too. Long story short, the Auto Zone guy handed me a pack of XXX64 and XXX65 plugs, paying no attention I put the 65s in before I realised the difference. Murphy was on duty as well, I needed the 64's. One trip back to Auto Zone and I got everythign straight, but hte poor flustered tested my patience enough that I wanted to wrap a 2' breaker bar around his head. The moral of the story is this, always check to see what the parts guy is handing you and check it agaisnt the part number.

I apologize for the blurry pic, but here's what my #4 plug looked like. Luckily it was the only one that looked like this.

 

That didnt leave any marks or surface defects on the piston did it?

 

man that is not a pretty pic. i believe that the cylinder is ok. i have pulled worse out after a nitrous woops.

 

Not as far as I can tell. It looked to be confined to the ground on the plug. The rest were an even tanish color.