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Old 03-25-2007, 07:57 PM   #1
Darrel
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Default need some general advice here on a ford

its a ford torous and it runs horrible. this has a REALLY bad miss when you first start it cold and will hardly run. once it warms up it smooths right out. any ideas? I dumped a bottle of injector and fuel system cleaner into the tank and filled it up before i left it with her. hasn't been long enough to tell if it helped though.
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Old 03-25-2007, 08:00 PM   #2
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Well.... It depends on the year. Have you cleaned the MAF yet? My old 3.8 ran HORRIBLE when cold and the MAF was dirty. Cleaned up a bit when it got warm.
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Old 03-25-2007, 08:04 PM   #3
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thats not a bad thing to check.


its a 1993 too, 3.8
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Old 03-25-2007, 08:37 PM   #4
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I'm not sure if they had the MAF on the 93'* or if they still used speed density. Part of me wants to say they had a MAF.....

Anyways.... Has the fuel consumption increased?
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Old 03-25-2007, 09:04 PM   #5
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fuel consumption on that car as always been high, she only gets about 13 to 15 MPG... and has been for a long time. checking for a MAF screen shouldn't be hard anyhow. I'll just have to do that over easter when i see her next
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Old 03-25-2007, 09:19 PM   #6
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93 should still be eec-iv, Let it warm up and put it thru a self test.
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Old 03-25-2007, 09:27 PM   #7
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Wasn't aware it had a MAF screen, I was referring to the actual sensor. Anywhere past 60k on the sensor and it'* a roll of the dice when it starts.


Start off by just unplugging the sensor entirely. If nothing changes, then try cleaning the sensor with some rubbing alcohol, a q-tip, and a steady hand. Gently blow it dry, and try it if that'* the case.

The mileage may be her driving style, or it could be pointing to a bad MAF or maybe even a hung injector.
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Old 03-25-2007, 09:41 PM   #8
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Does it smoke when it'* running rough at start up?
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Old 03-25-2007, 09:59 PM   #9
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not that i've noticed, so it couldn't be that bad.

Her driving style is SOOOO gentle it isn't even funny.

Could the coil pack be going out on it, to the point where heating it up helps it work properly?
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Old 03-25-2007, 10:04 PM   #10
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If it'* got a crack in the distributor cap/coil pack that collects moisture, the moisture could evaporate as it heats up, helping to clean up the running. Had that happen on my old 3.8 too :(
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