Question about 2003 Ford Windstar

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Engine hesitation and roughness/sucking noise

Sucking noise, put the pedal down and it revs without much power. It acts like it's going to run out of gas-type hesitation when it shifts into overdrive; but NOT LIMITED TO overdrive. Now I'm hearing subtle rattling noises in the motor(I wanna say the top end) ....Mass air? Intake problems? O2 sensors? Etc.? If this is remotely familiar, I'd SINCERELY appreciate some help; it's my parents only vehicle, they're handicapped, and I don't want them in something I don't feel is safe at all times. MUCH appreciative...

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It sounds like there is a leak in / on the intake manifold/plenum. leaks of this sort are after the injector device and cause issues similar to what you're describing. Since the 'unknown' air is bypassing the sensors, the computer doesn't know about it and calculates based on what sensor are reading, when in actuality your engine is receiving more air and not enough fuel.
You should have a 'Check engine light' indication and if you get an OBD scanner, it will give you codes that you can then look up for more information. (but try to ascertain the source of the 'sucking' sound), this is most likely your culprit.

Posted on May 15, 2017

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Can you tell me the model and year you have this would help me with your question

Posted on May 15, 2017


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Posted on Jan 02, 2017

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Stop running the engine. Check the engine oil level. It should have a yellow colored handle, pull it out and check at the bottom of the stick for oil. If it is within the range on the dipstick, you need some engine work done. If you don't have any oil on the stick, or it is lower than the range, just add more oil, a little at a time until you get it back within range.

Posted on Apr 25, 2009

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SOURCE: runs rough, replaced o2 sensor,

two things to check- 1 fuel filter ,if that doesn't help- 2 catalytic converter

a dirty or plugged fuel filter can cause strange power/idle problems and is fairly easy to change, while the cat is more expensive but can cause prolems that look like an o2 sensor

Posted on May 25, 2011

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