I recently bought a 2010 CRV LX. 4wd Auto trans with 150k on it.
Is my vibration a torque converter or what else could it be?
It has a vibration that sounds like a deep growl. It starts when I'm at 45mph and stops about 50-52mph. It doesn't occur at any other speed. It happens when I'm cruising in that speed range so the transmission has downshifted to 4th gear I believe. This drops the Rpm to about 1,500. If I'm speeding up through the speed range, it will be at a higher rpm and a be at 3rd gear or higher if I'm speed up fast.
I can make the rumble go away by pressing my D3 button while cruising in the 45-50mph speed range. Obviously, this makes the RPM higher.
The rumble is only when my foot is on the gas pedal to maintain speed. It stops with my foot off of the gas.
I think it feels like a torque converter. at least that's what I assume it is. I tried doing a drain/fill procedure with Honda ATF and replace the external atf filter in the line that goes to the atf cooler. I did 3 drain/fills. It drained about 4 quarts each time (Luckily, I had bought extra since the owner's manual says it'll only drain 2.6qts). The old fluid was still red. It was dark but not super dark. While it shifts smoother, it didn't affect the rumble at all. I left just enough room to add some Lube guard Instant Shudder Fixx. This also did nothing.
Normally I wouldn't expect that changing the fluid and adding an additive would help a torque converter that's already acting up, but I've read so many stories on here about this stuff working with these CRV's, I thought I'd give it a shot.
So my question is, is there anything else I should look at that can give these symptoms? Anything else that can be confused as a torque converter that only vibrates at specific speed/rpm range? I'm just trying to see if I can look into everything before I commit to taking it to a transmission shop and pay the $1000ish to replace the converter.
I haven't done much else to it yet. I've changed a super dirty air filter, clean the maf sensor, changed the spark plugs and rotated the Tires. I have a fairly capable scanner (Youcanic) and it has no codes. I have some fluid to change the rear dif fluid as well. I'm not chasing anything else. Just doing a little maintenance because I don't know it's complete history.
Other than the rumble, it drives great, shifts smooth, and I'm quite happy with it.
Thanks in advance.
Is my vibration a torque converter or what else could it be?
It has a vibration that sounds like a deep growl. It starts when I'm at 45mph and stops about 50-52mph. It doesn't occur at any other speed. It happens when I'm cruising in that speed range so the transmission has downshifted to 4th gear I believe. This drops the Rpm to about 1,500. If I'm speeding up through the speed range, it will be at a higher rpm and a be at 3rd gear or higher if I'm speed up fast.
I can make the rumble go away by pressing my D3 button while cruising in the 45-50mph speed range. Obviously, this makes the RPM higher.
The rumble is only when my foot is on the gas pedal to maintain speed. It stops with my foot off of the gas.
I think it feels like a torque converter. at least that's what I assume it is. I tried doing a drain/fill procedure with Honda ATF and replace the external atf filter in the line that goes to the atf cooler. I did 3 drain/fills. It drained about 4 quarts each time (Luckily, I had bought extra since the owner's manual says it'll only drain 2.6qts). The old fluid was still red. It was dark but not super dark. While it shifts smoother, it didn't affect the rumble at all. I left just enough room to add some Lube guard Instant Shudder Fixx. This also did nothing.
Normally I wouldn't expect that changing the fluid and adding an additive would help a torque converter that's already acting up, but I've read so many stories on here about this stuff working with these CRV's, I thought I'd give it a shot.
So my question is, is there anything else I should look at that can give these symptoms? Anything else that can be confused as a torque converter that only vibrates at specific speed/rpm range? I'm just trying to see if I can look into everything before I commit to taking it to a transmission shop and pay the $1000ish to replace the converter.
I haven't done much else to it yet. I've changed a super dirty air filter, clean the maf sensor, changed the spark plugs and rotated the Tires. I have a fairly capable scanner (Youcanic) and it has no codes. I have some fluid to change the rear dif fluid as well. I'm not chasing anything else. Just doing a little maintenance because I don't know it's complete history.
Other than the rumble, it drives great, shifts smooth, and I'm quite happy with it.
Thanks in advance.
