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Mercury Cougar XR7 1996

thickey1's Avatar
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09-22-03, 03:39 AM   #1  
Mercury Cougar XR7 1996

Mercury Cougar XR7 1996 Have a 4.6 litre V8 with check engine light comeing on. This happened just after the engine was degreased and hi pressure washed. The car runs rough for a while like a car would run when there is water in the gas tank then runs fine after warms up. Still have check engine light on

Thanks in advance,

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billys68ss's Avatar

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09-22-03, 04:08 AM   #2  
Put a scanner on it and find out what the codes are. This will narrow your search. You may have knocked a vacuum line or electrical connector off. Worse case, you broke or damaged something. Let us know what your codes are.

toyotaman11769's Avatar

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09-22-03, 08:25 AM   #3  
Sounds like wires are wet, most likely water in the spark plug holes.


darrell McCoy's Avatar
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09-22-03, 09:58 AM   #4  
darrell McCoy
I'd drive it a while, then check codes and reset light, will probably be OK. Pressure washing engines with electronic stuff is bad business.

Joe_F's Avatar
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09-22-03, 07:00 PM   #5  
All are correct.

Tip: No need to steam clean an engine like this. Not a show car and doing so does more harm than good for the everyday car. Leave it be .

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