It shifts hard at 25 MPH.
Dec 14, 2020 at 10:47 AM
Transmission not shifting properly
2004 HONDA ACCORD
TOM LEWIS2
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- 4 POSTS
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Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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Hi,
Often times, this is related to the wrong type of transmission fluid being used. Has anyone added or changed the fluid recently? Also, is the fluid clean and full?
The transmission fluid for this vehicle is ATF-Z1
Here are the directions for servicing the transmission. At the end, it explains how to check fluid level. The attached pics correlate with the directions.
_________________________________________
2004 Honda Accord L4-2.4L
ATF Replacement
Vehicle Maintenance Fluids Fluid - A/T Service and Repair Removal and Replacement ATF Replacement
ATF REPLACEMENT
ATF Replacement
NOTE: Keep all foreign particles out of the transmission.
1. Bring the transmission up to normal operating temperature (the radiator fan comes on).
2. Park the vehicle on level ground, and turn the engine off.
pic 1
pic 2
Note: Use a 3/8 drive ratchet for the drain plug.
3. Remove the drain plug (A), and drain the automatic transmission fluid (ATF). Then reinstall the drain plug with a new sealing washer (B).
NOTE: If a cooler cleaner is going to be used, refer to ATF cooler cleaning.
pic 3
4. Remove the dipstick, and refill transmission with the recommended fluid amount through the opening of the dipstick guide pipe until the level reaches the upper mark on the dipstick. Always use Honda ATF DW-1 (ATF-Z1 has been replaced with ATF DW-1, Honda Service News Nov 2010) automatic transmission fluid (ATF). Using a non-Honda ATF can affect shift quality.
pic 4
5. Insert the dipstick (A) into the dipstick guide pipe aligning the cap (B) with the guide tab (C).
_________________________
Let me know what you find.
Joe
Often times, this is related to the wrong type of transmission fluid being used. Has anyone added or changed the fluid recently? Also, is the fluid clean and full?
The transmission fluid for this vehicle is ATF-Z1
Here are the directions for servicing the transmission. At the end, it explains how to check fluid level. The attached pics correlate with the directions.
_________________________________________
2004 Honda Accord L4-2.4L
ATF Replacement
Vehicle Maintenance Fluids Fluid - A/T Service and Repair Removal and Replacement ATF Replacement
ATF REPLACEMENT
ATF Replacement
NOTE: Keep all foreign particles out of the transmission.
1. Bring the transmission up to normal operating temperature (the radiator fan comes on).
2. Park the vehicle on level ground, and turn the engine off.
pic 1
pic 2
Note: Use a 3/8 drive ratchet for the drain plug.
3. Remove the drain plug (A), and drain the automatic transmission fluid (ATF). Then reinstall the drain plug with a new sealing washer (B).
NOTE: If a cooler cleaner is going to be used, refer to ATF cooler cleaning.
pic 3
4. Remove the dipstick, and refill transmission with the recommended fluid amount through the opening of the dipstick guide pipe until the level reaches the upper mark on the dipstick. Always use Honda ATF DW-1 (ATF-Z1 has been replaced with ATF DW-1, Honda Service News Nov 2010) automatic transmission fluid (ATF). Using a non-Honda ATF can affect shift quality.
pic 4
5. Insert the dipstick (A) into the dipstick guide pipe aligning the cap (B) with the guide tab (C).
_________________________
Let me know what you find.
Joe
Images (Click to enlarge)
Dec 14, 2020 at 6:52 PM
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I tried that already.
Dec 15, 2020 at 4:53 AM
Hi,
Have you checked for diagnostic trouble codes? The vehicle has a transmission control module which may indicate the issue. You will need to scan the can system. CAN stands for controller area network. It ties all the modules and computers together. Here is a video showing how it's done:
https://youtu.be/InIlnsjOVFA
Let me know if you have had this done.
Joe
Have you checked for diagnostic trouble codes? The vehicle has a transmission control module which may indicate the issue. You will need to scan the can system. CAN stands for controller area network. It ties all the modules and computers together. Here is a video showing how it's done:
https://youtu.be/InIlnsjOVFA
Let me know if you have had this done.
Joe
Dec 15, 2020 at 5:26 PM
The car reads no codes.
Dec 15, 2020 at 9:06 PM
Would the transmission speed sensor have anything to do with it?
Dec 15, 2020 at 9:08 PM
Hi,
The VSS (vehicle speed sensor) can certainly cause a shift issue. I realize you read the codes, but did you do it with a scan tool that can read other than engine codes?
Let me know.
Joe
The VSS (vehicle speed sensor) can certainly cause a shift issue. I realize you read the codes, but did you do it with a scan tool that can read other than engine codes?
Let me know.
Joe
Dec 16, 2020 at 1:48 PM