Don't spray your engine with water!!

So, I had an oil leak. I found the breather tube on driver's side not fully connected to the valve cover. Clicked it in place and discovered the oil filter adapter gasket was leaking. Replaced that and sprayed degreaser then water to clean it all off. Now I had a misfire. Replaced all spark plugs with the updated model #. Still misfired. Diagnosed 1 coil to be faulty, replaced it and another because I bought 2. Ran a little better but still not right. Replaced the remaining coils, still [email protected] some more threads around here and elsewhere and another guy had bad catalytic converters. I took to an exhaust shop for a free backpressure test. Driver's side was plugged. Passenger side is close to the end. In between 6 home renovation projects and my 2nd son being born I finally got back to the exhaust shop to have the cat replacement done. What a difference! And what a way to learn not to spray these engines down with water. The symptoms were all similar to spark plugs and coils being faulty. Very sluggish and non responsive to acceleration especially up any type of incline. 30-40mph extremely dogged and would almost backfire upon attempting to accelerate. More of a putter but made me think backfire. Such frustration, but so happy to have it right again. Hopefully this can prevent others from repeating my mistake. Or help to diagnose an issue.

I've been cleaning engines for years with engine cleaner and washing down with low pressure water without any issues.....guess it may be my technique.

Same thing happened to me with the misfires, never get a hose anywhere near a 5.4 lol

That was where the old expression "you're hosed" originally came from

Like sex, you've gotta wrap the sparkers if you don't want trouble down the road. Remember mom always said wear your raincoat. Rubber or plastic, no truer words.

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Uhm I suspect they screwed you

water damage to an injector is the next likely candidate after plugs and coils.... been there, got the tshirt

stamp11127 said:

I've been cleaning engines for years with engine cleaner and washing down with low pressure water without any issues.....guess it may be my technique.

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I do the same thing on my 5.4. I use compressed air to blow out any water from around the sparkplugs and the engine overall before I try to start it...

My 2008 Expedition will get motor wet, not drowned but wet, riding on rain soaked roads. Seems spray from road is forced onto motor. Nothing to stop spray. Seems this Ford is a fair weather machine.

stamp11127 said:

I've been cleaning engines for years with engine cleaner and washing down with low pressure water without any issues.....guess it may be my technique.

Click to expand...

Have you ever washed a 3 valve that way? I've always washed my engines using the same technique but I don't dare try it on my 3 valve. They're very well known for water getting in around the spark plug boot causing misfires

No Adieu, I didn't get screwed, but I did get blown, had a 6"71 blower on one of my Ford's back in the day. Like the Beach boys song, when something comes up to me, he don't even try. It really did rubber in all 4 gears!

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