vanuatoo Posted September 18, 2009 Share Posted September 18, 2009 Hello I've got 2003 SE 4x4 with Auto transmission. I've noticed that only when I'm driving downhill and accelerating at certain speed transmission downshifts and some beating sound is heard. I don't know if it's connected but When I cranking the car at the morning some beating sound is also heard once. But that does not happen all the time. Could it because one of my 2 drive belts are not adjusted correctly? Link to comment Share on other sites More sharing options...
GoPathyGo Posted September 19, 2009 Share Posted September 19, 2009 Can you clarify "beating sound" ? Any more info would be appreciated. Link to comment Share on other sites More sharing options...
vanuatoo Posted September 19, 2009 Author Share Posted September 19, 2009 Can you clarify "beating sound" ? Any more info would be appreciated. It's like manual transmission sound when you change a gear and it does not go smooth, but only one beat. Also it's like the sound when you shift 4wd lever from 4h to 4l. Unfortunately I don't know how automatic transmission sounds when it's damaged or low on oil and you change gears but I suspect it's the same sound. Anyway it does not bother me too much. In every other situation car upshifts and downshifts smoothly. Maybe it's the normal behaviour for such an old-fashioned transmission. I susupect that it happens when the car is going to downshift from 3rd to 2nd and at that point I'm accelerating but only on downhill. Link to comment Share on other sites More sharing options...
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