I washed engine, now it runs rough

[revereamg]

I washed my engine with soap and water yesterday and now it runs rough and sounds like its misfiring. i didnt cove up any of the spots that arent supposed to get wet.

an i screwed ? will it dry and get better ? any thing i could dry out to help ?

[RoyLPita]

Pull the coil covers off and check the coils and spark plug journals for water intrusion.

[dohc324ci]

What ^^roy said. You probably got water in there pull off your coil covers very easy. Get your self some dielectric grease while your at it and apply.

[musclemerc]

Hopefully you do not have a cold air kit and wet the filter... If not the coils are indeed wet. Everyone learns from their mistakes, get an engine washer from Harbor Freight it puts out a controlled amount of diluted cleaning solution. You gotta have compressed air though.

[Glenn]

I never wash my engine - I just wipe it down real good because of water problems that result from our modern engines.

http://www.mercurymarauder.net/gallery/data/3/FuelPressGaugeMM001R.jpg

Glenn Ford

[CBT]

That is insanely clean:beer:


I never wash my engine - I just wipe it down real good because of water problems that result from our modern engines.

http://www.mercurymarauder.net/gallery/data/3/FuelPressGaugeMM001R.jpg

Glenn Ford

[tbone]

I power wash all the time. No problems at all.

[Blackened300a]

I used to get misfires when I would wash the engine of my Crown Vic. You must have gotten a coil wet.

[fastblackmerc]

I wash mine all the time. Never use a power washer, just engine cleaner, hose, compressed air and CD2 Engine Detailer.

http://i167.photobucket.com/albums/u133/fastblackmerc/MM%20Mods/Valve%20Covers/Rightside.jpg

http://i167.photobucket.com/albums/u133/fastblackmerc/MM%20Mods/Valve%20Covers/Leftside.jpg

[MM2004]

Cold engine ->

Simple Green ->

Shower-head attachment on a garden hose ->

Rinse ->

Start engine and let run about 10 minutes.

FTW

:burnout:

Mike.

[a_d_a_m]

Cold engine ->

Simple Green ->

Shower-head attachment on a garden hose ->

Rinse ->

Blow dry with compressed air.

Run.

FTW

:burnout:

Adam.

[DOOM]

Never washed my engine bay. :cool4:
http://www.mercurymarauder.net/forums/picture.php?albumid=18&pictureid=417
http://www.mercurymarauder.net/forums/picture.php?albumid=18&pictureid=274

[bob6364]

I wash mine all the time. Never use a power washer, just engine cleaner, hose, compressed air and CD2 Engine Detailer.

http://i167.photobucket.com/albums/u133/fastblackmerc/MM%20Mods/Valve%20Covers/Rightside.jpg

http://i167.photobucket.com/albums/u133/fastblackmerc/MM%20Mods/Valve%20Covers/Leftside.jpg

+1 love cd2 engine detailer

[ImpalaSlayer]

this is interesting this came up, mine needs a good bath and i was wondering what products to use. but as Glenn said im kinda scared to go sparying water at the thing.

[Big Black Beast]

Steam cleaner?

My method: Duster & damp rag.

[Blackened300a]

this is interesting this came up, mine needs a good bath and i was wondering what products to use. but as Glenn said im kinda scared to go sparying water at the thing.

Glenn also likes shorty headers and has a 70s porno mustache. Spray it, you'll be fine.

[ImpalaSlayer]

Glenn also likes shorty headers and has a 70s porno mustache. Spray it, you'll be fine.

flame on! :flamer:

[1stMerc]

The biggest issue is getting water under the coil covers and weting the coils/plugs. Get some black RTV sealant, remove cover and put a thin bead under where the gasket meets the valve cover. Let it skin over, put cover back on and make sure you don't torg the bolts to tight. Problem solved. Wash to your hearts content. Learned the hard way.

[revereamg]

thanks guys. i opened the left side coil and pulled out the coils and there was a ton of water inside. i blew it out with compressed air.

i also replaced a coil that was burned out. the bottom couple inches of the rubber stem turned yellow and it smelled burned out.

runs great now.

[massacre]

FWIW this is far less common with the older ignition systems that use plug wires.