pcpitstop

So I changed my plugs in my 94 GS, now it has a noticable rough idle, almost a misfire, it feels like it is going to stall however does not. Also can feel it when I am cruising and not really on the gas, however when I press the gas it feels smooth and feels as though all the power is there.

I can say that a small amount of coolant dripped down into the plugs.

Also like a dumb*** forgot to check the gap on the plugs.

They are NGK platinum plugs.

kene

iTrader: (2)

Here is the old school way of checking(some may b***h about it):

-With the motor running, unplug the first spark plug wire just for a second or two, and listen to see if the motor starts running more rough. If the engine started to sound more rough/possibly shut off, then put it back on the spark plug. That spark plug wire is properly sending spark to that spark plug.

-Now proceed to the next spark plug in line, and repeat the procedure.

-When you come across one of the spark plugs that when unplugged, the already rough running of the motor does Not become worse, that is the culprit of your problems. The wire running to that spark plug maybe not be sending spark, or the plug maybe bad.

-There is also a way to check if the wire is bad, but I'll just say spend the 35$-60$ for a set at (www.rockauto.com) ...best site for parts deals, many items 30-40% cheaper.

www.rockauto.com

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link13

The coolant in the spark plug wells is probably enough to cause what you described.

pcpitstop

Wouldnt that dry up by now though?

I have driven it about 40 miles since then.

link13

It takes a long time to evaporate. Most guys who've had the problem have taken everything apart, pulled the plugs out, and dried out the wells either with compressed air or a wet dry vac.

kene

iTrader: (2)

that too as well... forgot to add..I washed some sections of the engine bay and I experienced that rough engine running a while ago. it was a hot day and I drove the about a good 3 miles. turned back around and parked it. came out in the morning and it started right up normal.

pcpitstop

Quick update, I pulled the old plugs and walah! one of the plugs must have hit something as is had no gap at all. Put in the new plugs (gapped properly of course) and the skip is gone.