2013 Honda CRV - Automatic trans car shudders and slight booming noise inside the car
83K Miles bought from private party, no codes - As the title says - There is a "whirr" sound after shifting into 2nd and then a slight shudder going into 3rd when accelerating lightly. A lot of people online seem to think it's a bad torque converter, but the dealer said it's not likely, and that taking apart the trans now to check it would probably not help much. There is also a booming noise that changes as the wheels spin faster, seems like its coming from the back, they didn't comment on that. Said the car is in great shape, but these things are bugging me quite a bit, got it for not very cheap and would like to have it in top shape if possible.
Should I take it to someone else for advice or just keep driving it for now and learn to live with some extra sound effects?
p.s car has a towbar, maybe the previous owner damaged the trans by towing too much or doing so improperly.
I say, drain and refill automatic transmission with Honda ATF DW-1 ( this is upgraded fluid and it is compatible with the original Z-1). If improvement is not significant enough after a week of two of driving, … repeat drain and fill one more time. In most cases, it’s all that’s needed. Happy long motoring after, …
As to the noise in the rear, … if it’s 4WD, … fluid change is called for. Again, those rear differential tend to whine at about your indicated milage. Fluid change almost always makes it quiet again, … but make sure you use Honda fluid - Honda Dual Pump Fluid II.
Anyway, … that should do it, … in most cases does.
After a long drive stick your hand in center of each wheel. If one is warm or hot your brakes are dragging or you have a bad wheel bearing. Either one can cause AWD systems to act funky. Otherwise change gear oil in rear differential see if that helps. Good luck!