A friend of mine called me today and said that his wife's car was acting up so I went and looked at it and scanned it with my actron and pulled 4 cel codes. I don't remember the numbers but they were all relating to running lean. both cylinder banks one and two threw two codes each for running lean. the car shakes badly and I can hear a fairly loud sucking noise in the engine bay. the car starts and idles and I can even race the engine without it stalling but while it is running it shakes badly and makes the sucking noise. I talked to his wife and she was just out driving the car earlier today and driving on the interstate doing about 60 or 70mph and she said that she did not have any problems or notice it doing anything strange. What could be the problem?
2004 mercury grand marquee is running lean?
- Thread starter cody
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