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98 Grand Marquis - check engine light on.

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  #1  
Old 05-16-2008, 05:46 PM
olds97_lss's Avatar
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I took it to autozone and it came up with error code PO442 which came back as EVAP small leak/no flow condition.

It has 140K on it and runs great otherwise. The light came on last year around 110K and I took it to autozone to code it, came back as the O2 sensor. I replaced those myself and it went off. upon inspection of the sensors, the wires had wore through and were shorting out on the under body.

This new error seems a bit vague... anyone have any input?
 
  #2  
Old 07-06-2008, 01:22 AM
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the light is on in my 98 also. same exact thing. the mechanic told me it was not a big deal and will not effect the performance or emissions of the car and im only 17 and currently no job so i dont really have the money to get something fixed that doesnt HAVE to be
 
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Old 07-06-2008, 10:17 AM
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It ended up being a pump that pressurizes the tank on start up to check for leaks. I want to say it cost me around $100 to get it fixed. But that was a couple months ago... and I had more work done recently on it that erased that one from my mind.

The most recent repair was an HVAC issue. The heat was stuck on and there was a constant CLICK CLICK CLICK sound. That one cost me $750 to fix... and 3 return trips to the shop to fix other stuff that they goofed up on. It was a servo motor that controlled the air mix door.
 
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Old 07-06-2008, 02:12 PM
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Oh i see. Mine is not that i dont think. It could be though. Maybe when i get the money to have it checked out and fixed i will. I will keep that in mind as of what happened to yours.

 
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