I have a 2010 Rav4 4 cylinder with auto transmission.
I have noticed a slight grinding sometimes when going up a hill and it has to shift into a lower gear. This is happening between 35 and 45 mph, so I am thinking it is between third and second.
I hear the grinding for 2 or 3 seconds. It doesn't lurch or shudder the car; but I do feel a slight vibration. And sometimes I can go several days without hearing it. But it might be because some days I drive at highway speeds most of the day. It's like it's trying to decide what gear it needs to be in. If I let up on the gas, or push down for more, it settles right away into one gear or the other.
The atf was flushed in May 2015 by my mechanic. This started happening in October. I had my mechanic look at it and he noticed that the fluid level was a little high (apparently his guy had put a little too much in), so he drained it. But it didn't really improve.
I'm debating whether to take it to a transmission place to look at it. I don't want to take it to the dealer. Or could this be a simple adjustment? Would resetting the ECU by removing the negative lead be in order?
I read where some on the 4.2 2nd Generation forums are replacing the ECU/TCM. Could this be the issue for a 2010 in the third generation? Any other options or tests that anyone can think of?
Or am I being paranoid and shouldn't be worrying about it?
Thanks for your help!
Videot
I have noticed a slight grinding sometimes when going up a hill and it has to shift into a lower gear. This is happening between 35 and 45 mph, so I am thinking it is between third and second.
I hear the grinding for 2 or 3 seconds. It doesn't lurch or shudder the car; but I do feel a slight vibration. And sometimes I can go several days without hearing it. But it might be because some days I drive at highway speeds most of the day. It's like it's trying to decide what gear it needs to be in. If I let up on the gas, or push down for more, it settles right away into one gear or the other.
The atf was flushed in May 2015 by my mechanic. This started happening in October. I had my mechanic look at it and he noticed that the fluid level was a little high (apparently his guy had put a little too much in), so he drained it. But it didn't really improve.
I'm debating whether to take it to a transmission place to look at it. I don't want to take it to the dealer. Or could this be a simple adjustment? Would resetting the ECU by removing the negative lead be in order?
I read where some on the 4.2 2nd Generation forums are replacing the ECU/TCM. Could this be the issue for a 2010 in the third generation? Any other options or tests that anyone can think of?
Or am I being paranoid and shouldn't be worrying about it?
Thanks for your help!
Videot