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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

o2 sensor.with or without..that is the?

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Old May 10, 2011 | 10:56 AM
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'89F2urd
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you need to check your blowby via a visual test or a compression test. no sense in buyin parts for it if its shot. . .

do you have to add oil frequently? you can do a visual test by removin the breather and seein how much steam/oil come out, or take the extra time and just remove the spark plugs for a compression test.
 
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