1995 Ford Thunderbird Smog Check

1995 FORD THUNDERBIRD
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SWFRED_2000
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  • 1 POST
Engine Performance problem
1995 Ford Thunderbird 6 cyl Two Wheel Drive Automatic

I had Smog Check done on my car today. It failed. Idle speed Emission test was 454 (greater than 220 ppm) - I was wondering if your would know what I can check to bring this down. Bought the car a year ago, it passed before the sale. it was idling a bit rough when cold when I bought it, so I turned up the throttle about 1/3 turn. Other than lowing the idle, any ideas where I can start? - Thanks
May 8, 2010 at 12:49 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
It sounds like the vehicle is running rich. When was the last tune up? Also, has the check engine light ever come on?
May 14, 2010 at 3:17 AM
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