93_SC300

I was washing and detailing my '93 SC300 yesterday and decided to use a little degreaser on the engine. I only did it in two spots on the exhaust side of the engine before and after the intake. I've done this before on other cars so I know to be careful with the degreaser and the water. When I was finished the car sat for a couple hours before I started it up. It started fine and I backed it up to move another car. shortly after I noticed the idle started to pulsate. It would just make a different noise every few seconds. I didn't think to much of it and went for a drive and it just got proggesively worse. It will barely idle now and shakes and sounds like crap if you give it any gas. Today I took apart everything on that side of the engine checking for loose lines, wet plugs etc. I even reset the ECU twice. And it's not throwing and CELs either. Is it possible water could have gotten down to the plugs and fouled one out? It really doesn't sound like it's running on all cylinders. Since I was spraying around the idle speed control I thought that might be the problem too but I don't see how water could have gotten in there to mess it up. And like I said it's not just the idle that's the problem.

Thanks for any and all help,
Brandon

Sakura_Pro

Pull your filter. I bet its soaked.

farkas

iTrader: (5)

You must have gotten water down in the sparkplug holes. I am surprised that the drive and the overnight did not fix your problem. I would be very cautious about taking out the plugs. You may want to spray some air down in the sparkplug holes with an air gun if you have one. If you do not, than you might try a can of compressed air that is used for computers. That might fix it if there is water down there. Good luck!

sc250tt

+1. Check for water in the plugs.

Sakura_Pro

If you have water on one or more of your plugs the car will run like *** right on start up if it even starts.

t66sc3

iTrader: (2)

check for water under the distributor cap, there really isnt a seal on it and it would be hard to get out by itself and could be messing with your rotor to cap clearences causing spark to jump or miss. i would do that and check air filte. just my .02 goodluck!

93_SC300

Thanks for all the replys! It's definitly water on the plugs. The back two had quite a bit. I guess I wasn't as careful as I thought I was. I used a turkey baster to get most of the water out. I had to move it to get my other car out of the garage and it ran much, much better but I'm going to let it air out for a day or two unless I can find some kind of syringe to get the little bit of water left out.

ihiryu

iTrader: (7)

yeah my sc400 did that, but after a lil bit of driving it went away