humming noise
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humming noise
hi all ,great website. i have a 97 ranger 2whl drive 4 ltr, 5 spd auto
occsionally, it exhibits a humming noise, from the intake system, if i place my hand on the manifold, i can feel a flutter that sequences with the noise. no codes stored when it occurs i have installed a vacume gauge, when purchased and see what i think are low readings, but the vehicle has almost 300 , 000 kilometers on it (180 thousand miles)
the transmission demonstrates symptoms of valve body problems, but no slippage and fluid is not dirty. i am uncertain if the trans is holding gears too long and creating the seemingly low vacume readings. last vehicle was a ranger, 5 sp manual and 4 litre, and this one perfoms almost the same , but it had half the mileage suggestions?
occsionally, it exhibits a humming noise, from the intake system, if i place my hand on the manifold, i can feel a flutter that sequences with the noise. no codes stored when it occurs i have installed a vacume gauge, when purchased and see what i think are low readings, but the vehicle has almost 300 , 000 kilometers on it (180 thousand miles)
the transmission demonstrates symptoms of valve body problems, but no slippage and fluid is not dirty. i am uncertain if the trans is holding gears too long and creating the seemingly low vacume readings. last vehicle was a ranger, 5 sp manual and 4 litre, and this one perfoms almost the same , but it had half the mileage suggestions?
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90pioneer
1999 - 2003 7.3L Power Stroke Diesel
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Jun 4, 2011 09:51 PM
