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Old 03-12-2011, 03:12 PM   #1
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Default Transmission not engaging - '04 Civic

i have an 2004 honda civic DX/VP automatic and starts up great, idles good. you put it in gear no slipping just wont pull the car like the solenoids wont en-gauge the transmission. i've posted before and thought the problem went away now its back. what do i do???
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Old 03-12-2011, 03:20 PM   #2
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Default Re: Transmission not engaging - '04 Civic

Have you done a transmission fluid change recently?
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Old 03-12-2011, 03:21 PM   #3
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Default Re: Transmission not engaging - '04 Civic

yes fluid looked good, no metal in fluid
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Old 03-12-2011, 03:36 PM   #4
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Default Re: Transmission not engaging - '04 Civic

Symptom:
- Engine runs but vehicle does not move in any gear.

Possible causes:
- Low ATF level
- Shift cable broken or out of adjustment
- Joint in shift cable and transmission or body worn
- ATF pump worn or binding
- Regulator valve stuck or spring worn
- ATF strainer clogged
- Mainshaft worn or damaged
- Final gears worn or damaged
- Transmission-to-engine assembly error
- Axle disengaged

Notes:
- Check the ATF level, and check the ATF cooler lines for leakage and loose connections. If necessary, clean the ATF cooler lines.

- Check for a loose shift cable at the shift lever and the transmission control shaft.

- Improper alignment of ATF pump and torque converter housing may cause ATF pump seizure. The symptoms are mostly an RPM-related ticking noise or a high pitched squeak.

- Check the line pressure.

- If the strainer is clogged, find the damaged components that caused the debris.

- Inspect the differential pinion gears for wear. If the differential pinion gears are worn, replace the differential assembly, replace the ATF strainer, thoroughly clean the transmission, and clean the torque converter, cooler, and lines.

- Be careful not to damage the torque converter housing when replacing the main ball bearing. You may also damage the ATF pump when you torque down the main valve body. This will result in ATF pump seizure if not detected. Use the proper tools.

- Install the main seal flush with the torque converter housing. If you push it into the torque converter housing until it bottoms out, it will block the fluid return passage and result in damage.












How many miles are on it?
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Old 03-12-2011, 03:57 PM   #5
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Default Re: Transmission not engaging - '04 Civic

245k but when it does work it pulls and works great. i was driving it around for over 2 weeks without a problem. then it did it again. i wonder if the POSITION SENSOR ASSY down on the lower end of the tranny could be it? seems like a sensor or something is to blame!
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Old 03-12-2011, 04:11 PM   #6
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Default Re: Transmission not engaging - '04 Civic

It's certainly possible. Have you ever had the MIL (check engine light) come on, or the D indicator flash?


I made a DIY for testing the TRS. (transmission range switch) Click Here and read post #11


Also check for loose connections at the switch harness. Give it a wiggle and see if that fixes it.
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Old 03-12-2011, 04:43 PM   #7
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Default Re: Transmission not engaging - '04 Civic

i have a code reader, no other codes or flashing lights
well only once the code P0741 -Torque converter clutch circuit performance or stuck off
i erased it and i can make it come up again when i unplug the torque converter solenoid. i've been checking repeatedly for loose connections no luck on it helping. i will test the TRS very soon and get back on here to let u know what it says
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Old 03-12-2011, 05:14 PM   #8
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Default Re: Transmission not engaging - '04 Civic

Sounds like you might have intermittent solenoid failure. I recommend you buy a Helms manual for troubleshooting and repair. It's well-worth it.
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Old 03-14-2011, 12:16 PM   #9
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Default Re: Transmission not engaging - '04 Civic

i have the shop service manual like the honda dealership has. plus i have replaced the shift solenoids A & B (set) with known good ones. but theres main shaft speed sensor, counter shaft speed sensor, VSS, TRS, and the torque converter solenoid. as i've learned all these sensors or solenoids help control the tranny. oh yea plus the solenoids right above the shift ones, cant think of the name. i've just got to use what info u gave me and check them all out.
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Old 03-14-2011, 11:31 PM   #10
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Default Re: Transmission not engaging - '04 Civic

Best of luck with it!


Please let us know what you find out, and how you fixed it.
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Old 03-17-2011, 10:27 AM   #11
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Default Re: Transmission not engaging - '04 Civic

ok so i found out after your check (TRS & harness) that the switch was good and the harness was bad. ordered a replacement and will update again after i install.
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Old 03-17-2011, 11:54 PM   #12
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Default Re: Transmission not engaging - '04 Civic

Updates are definitely appreciated! Updates benefit those who are searching for answers in order to avoid making questions repetitious.
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Old 03-18-2011, 02:05 PM   #13
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Default Re: Transmission not engaging - '04 Civic

this is the (trs) tell me what u think about if this is the problem??
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Old 03-18-2011, 04:25 PM   #14
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Default Re: Transmission not engaging - '04 Civic

It looks well-used, but you said that you tested it and that it works. So .. .. ?
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Old 03-18-2011, 05:02 PM   #15
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Default Re: Transmission not engaging - '04 Civic

after more testing threw the harness when in park it tested as if it was in Neutral. the harness is new and the switch as u see is worn. there is a recall on this part and includes my car.
PROBABLE CAUSE
Poor continuity within the internal bands of the
transmission range switch.

temp seems to have a factor as well. if everything is cold it takes 3 min of driving before it screws up. if its been ran hot messed up then parked and turned off for 5 min allows about another of 1 min of driving before doing the same.the switch would get heat from the hot fluid in the tranny flowing threw the tranny but its not got fluid running to it (trs) which im sure u know. im gonna just get a new one and hope it fixes it. any other suggestions im open to them!!
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Old 03-18-2011, 05:42 PM   #16
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Default Re: Transmission not engaging - '04 Civic

Interesting.


Well, hopefully a new switch fixes the issue!
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Old 03-20-2011, 09:40 AM   #17
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Default Re: Transmission not engaging - '04 Civic

wow, thought i had this one figured out, but this is a really unique problem ive never seen before. Keep us updated
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Old 03-24-2011, 07:11 PM   #18
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Default Re: Transmission not engaging - '04 Civic

replaced the switch with new one from honda. did not fix it!! i was told by a shop i trust that its internal pressures. when i blow out the tranny with compressed air it starts to work again. called honda dealership the guy told me to flush the tranny by draining the tranny and adding back 3/4 of new honda ATF. repeat till its all replaced. he said it would clear out what sounds like a clog. yes indeed very unique problem.
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Old 03-24-2011, 08:45 PM   #19
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Default Re: Transmission not engaging - '04 Civic

Hopefully it clears it out. Check the strainer to see if it's covered in debris. It also wouldn't hurt to have a shop check the line pressure. (as noted in post #4



Have you considered doing an auto-to-manual swap? We have a pretty good DIY in the FAQ's for it if you decide to go that route. Might be worth the hassle.

Quote:
Automatic to Manual Conversion: Link
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Old 03-26-2011, 01:34 PM   #20
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Default Re: Transmission not engaging - '04 Civic

cleaned out the tranny and replaced with new fluid and car is working good. i believe im gonna sell this car lol
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Old 03-27-2011, 08:32 AM   #21
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Default Re: Transmission not engaging - '04 Civic

Well, at least it's operating normally now, especially if you do decide to sell it.



Best of luck with it.
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Old 03-28-2011, 07:11 AM   #22
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Default Re: Transmission not engaging - '04 Civic

thanks again guys! hope no one else has this problem if so hope this helps them.
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