Delayed 3-4 shift with slower acceleration. No rmp rev.
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Delayed 3-4 shift with slower acceleration. No rmp rev.
152,000 miles. 2009 Honda civic lx.
Automatic tranny. Only when accelerating slowly. I can avoid the funky shift under higher acceleration, but I forget sometimes. Only the 3-4 shift is funky. Other shifts are firm and quick. No rpm revving or slipping sensation on that shift. It starts the 3-4 shift, takes a "big gulp" and hesitates, then shifts. It's still a firm shift, but it thinks about it for a second or two. Shifting delay is very consistent under slow acceleration.
New vehicle to me. Changed tranny fluid a thousand miles ago (old fluid looked slightly worn but still good. Very little "moon powder" shavings on magnetic drain plug). Drained and filled 3 times with Honda Z1 (or whatever the new OEM Honda replacement fluid is). *I honestly can't remember if this problem started after I changed the fluid or not because I've owned it for just 2,000 miles. Changed the inline tranny fluid filter (no difference). No leaks. Level is good. No codes.
I can still drive it comfortably, but would like to solve the problem IF it's a low-cost problem (like shift solenoid or something else that I've overlooked).
Thank you in advance for your consideration and reading my post.
-Caleb
Automatic tranny. Only when accelerating slowly. I can avoid the funky shift under higher acceleration, but I forget sometimes. Only the 3-4 shift is funky. Other shifts are firm and quick. No rpm revving or slipping sensation on that shift. It starts the 3-4 shift, takes a "big gulp" and hesitates, then shifts. It's still a firm shift, but it thinks about it for a second or two. Shifting delay is very consistent under slow acceleration.
New vehicle to me. Changed tranny fluid a thousand miles ago (old fluid looked slightly worn but still good. Very little "moon powder" shavings on magnetic drain plug). Drained and filled 3 times with Honda Z1 (or whatever the new OEM Honda replacement fluid is). *I honestly can't remember if this problem started after I changed the fluid or not because I've owned it for just 2,000 miles. Changed the inline tranny fluid filter (no difference). No leaks. Level is good. No codes.
I can still drive it comfortably, but would like to solve the problem IF it's a low-cost problem (like shift solenoid or something else that I've overlooked).
Thank you in advance for your consideration and reading my post.
-Caleb
Joined: Dec 2008
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Re: Delayed 3-4 shift with slower acceleration. No rmp rev.
hard to tell from here.
auto usually delays shifting during high loads, like going uphill.
Have someone else drive it to tell if it is weird?
auto usually delays shifting during high loads, like going uphill.
Have someone else drive it to tell if it is weird?
Registered!!
Joined: Mar 2026
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Rep Power: 0 Re: Delayed 3-4 shift with slower acceleration. No rmp rev.
152,000 miles. 2009 Honda civic lx.
Automatic tranny. Only when accelerating slowly. I can avoid the funky shift under higher acceleration, but I forget sometimes. Only the 3-4 shift is funky. Other shifts are firm and quick. No rpm revving or slipping sensation on that shift. It starts the 3-4 shift, takes a "big gulp" and hesitates, then shifts. It's still a firm shift, but it thinks about it for a second or two. Shifting delay is very consistent under slow acceleration.
New vehicle to me. Changed tranny fluid a thousand miles ago (old fluid looked slightly worn but still good. Very little "moon powder" shavings on magnetic drain plug). Drained and filled 3 times with Honda Z1 (or whatever the new OEM Honda replacement fluid is). *I honestly can't remember if this problem started after I changed the fluid or not because I've owned it for just 2,000 miles. Changed the inline tranny fluid filter (no difference). No leaks. Level is good. No codes.
I can still drive it comfortably, but would like to solve the problem IF it's a low-cost problem (like shift solenoid or something else that I've overlooked).
Thank you in advance for your consideration and reading my post.
-Caleb
Automatic tranny. Only when accelerating slowly. I can avoid the funky shift under higher acceleration, but I forget sometimes. Only the 3-4 shift is funky. Other shifts are firm and quick. No rpm revving or slipping sensation on that shift. It starts the 3-4 shift, takes a "big gulp" and hesitates, then shifts. It's still a firm shift, but it thinks about it for a second or two. Shifting delay is very consistent under slow acceleration.
New vehicle to me. Changed tranny fluid a thousand miles ago (old fluid looked slightly worn but still good. Very little "moon powder" shavings on magnetic drain plug). Drained and filled 3 times with Honda Z1 (or whatever the new OEM Honda replacement fluid is). *I honestly can't remember if this problem started after I changed the fluid or not because I've owned it for just 2,000 miles. Changed the inline tranny fluid filter (no difference). No leaks. Level is good. No codes.
I can still drive it comfortably, but would like to solve the problem IF it's a low-cost problem (like shift solenoid or something else that I've overlooked).
Thank you in advance for your consideration and reading my post.
-Caleb
I changed my transmission to a very low milage JDM unit and im having the exact same issue. Have you managed to fixed it? Im going to change both input and output shaft speed sensors to the domestic ones.
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