XJ XJ6 / XJ8 / XJR ( X350 & X358 ) 2003 - 2009

I Sprayed the engine now it won't run

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Old Nov 7, 2017 | 09:57 PM
  #21  
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From: west virginia
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Originally Posted by EdBwoy
Funny that you brought up this issue when you did. I had a similar problem over the weekend as I cleaned (washed, for simplicity's sake) the engine to get rid of coolant splashes and grime.
For the above reasons, I left the engine underguard off and went on to the carwash to carefully do it like I have with every other car I have owned.

Long story short, my car shuddered and started running rough and the "restricted performance" light came on. Luckily mine came with codes - P0323 and P0327 I believe, or whatever the knock sensor ones are.

My only thought was to drive the hell out of it to get it hot enough to expel & evaporate any moisture. This worked for the first night, but the issue came back the next day but so far so good.
Good thing the 6sp transmission allows me to commute in most conditions without going over 3,000 rpm.

I realize without codes, my story is going nowhere for you, but I'll say not all cars are made equal. This very engine has been washed in the past with no issues. However, I had a Benz that didn't like getting wet with the hood up. Driving it as fast as I could for as long as I could was the only way to get rid of the multitude of mysterious and unrelated codes.

Thanks. I appreciate it.
 
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Old Nov 11, 2017 | 09:22 PM
  #22  
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These cars are much like a cat, spit parts out that they don't like, much like a hair ball.
 
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Old Nov 12, 2017 | 05:09 AM
  #23  
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I have washed all 10 of my XJ12's engines along with 2 XJR's, 2 XJ6's a VDP and an XKR without a single issue. Spray Gunk engine cleaner let it sit. Spray off with gentle stream of water. Cover up some of the obvious areas with small plastic bags and I have had no issue's to date. But electronic components and water Do Not Mix. So be careful what gets wet.
 
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