Hello All:
I've been battling Honda on a very annoying transmission/drive-train "trait" that makes is almost impossible "for me" to drive the vehicle because it's very annoying once you are conscious of what's happening. If you notice you have the same problem after reading this...sorry!
2007 Touring. Had all software updates and torque converter replaced. Bought new, problem recognized at about 40,000 miles, now 78,000 miles, wifes van.
Here's what happens - Driving down the road at 65 mph, top gear, if I crest a small hill and head down the back side, still applying light throttle, I will get a THUD in the transmission/drive-train that can be felt by all passengers. Not a shift, nor does the rpm change. This happens EVERY time I have to ease up on the gas to keep a constant speed, but it seems to be most prevent when going down a slight grade/hill.
Not that this is related, but at the same time the thud happens, my instant fuel economy goes from 35+ mpg (remember, going down a slight grade) to 14-16 mpg, holds for a few seconds, then starts to ramp back up after yet another THUD. In some cases, I have gone down a large grade with slight throttle and the instant mpg holds at 14, then when I go up another subsequent incline the instant mpg will rise (20-22 mpg) going up the hill. So I get "worse" mpg going down the hill...strange.
Seems to happen when giving slight throttle input + downward inclines.
So here's a quick summary:
Cruising, go down a slight hill, drive-train THUD, mpg goes to 14, get to bottom of slight hill, drive-train THUD, mpg goes to 22-26 or so, next incline, repeat.
Since my part of Michigan has very few flat roads, this can happen 50-60 times in a 2 hour trip...exhausting. Help!
I've been battling Honda on a very annoying transmission/drive-train "trait" that makes is almost impossible "for me" to drive the vehicle because it's very annoying once you are conscious of what's happening. If you notice you have the same problem after reading this...sorry!
2007 Touring. Had all software updates and torque converter replaced. Bought new, problem recognized at about 40,000 miles, now 78,000 miles, wifes van.
Here's what happens - Driving down the road at 65 mph, top gear, if I crest a small hill and head down the back side, still applying light throttle, I will get a THUD in the transmission/drive-train that can be felt by all passengers. Not a shift, nor does the rpm change. This happens EVERY time I have to ease up on the gas to keep a constant speed, but it seems to be most prevent when going down a slight grade/hill.
Not that this is related, but at the same time the thud happens, my instant fuel economy goes from 35+ mpg (remember, going down a slight grade) to 14-16 mpg, holds for a few seconds, then starts to ramp back up after yet another THUD. In some cases, I have gone down a large grade with slight throttle and the instant mpg holds at 14, then when I go up another subsequent incline the instant mpg will rise (20-22 mpg) going up the hill. So I get "worse" mpg going down the hill...strange.
Seems to happen when giving slight throttle input + downward inclines.
So here's a quick summary:
Cruising, go down a slight hill, drive-train THUD, mpg goes to 14, get to bottom of slight hill, drive-train THUD, mpg goes to 22-26 or so, next incline, repeat.
Since my part of Michigan has very few flat roads, this can happen 50-60 times in a 2 hour trip...exhausting. Help!