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  #1 (permalink)  
Old 04 Dec 2009, 02:27 am
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Default Linear Shift Solenoid replace

Ahoy, I've got a 2001 Honda Civic I've gotta fix for my mother-in-law, can anyone tell me the location of the Linear Solenoid/how to replace? I've tried searching the internet, but i've found nothing. I don't work on Honda's often enough to make buying the shop manual worth the money, I'm more of a classic chevy/ford restoration guy. Only import tuner i've ever worked on was a 300z... So, i'm kind of lost. Any help would be appreciated.
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Old 04 Dec 2009, 05:26 am
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Default Re: Linear Shift Solenoid replace

The linear shift solenoid is located underneath by the right front wheel side of the transmission. That's where it is on my 1998 civic, should be the same for you as well.

You should find 3 solenoids there, two for the shift solenoid assembly and one for the linear solenoid. What's the reason for having to change the shift solenoid?
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Old 04 Dec 2009, 02:00 pm
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Default Re: Linear Shift Solenoid replace

she's having problems similar to those described in that bulletin thing honda put out in relation to the linear solenoid. so i figured i'd replace it along with verifying it's got the Honda tranny fluid in it.
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Old 04 Dec 2009, 07:10 pm
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Default Re: Linear Shift Solenoid replace

I'm not sure what that bulletin was?

Linear solenoids aren't cheap. I just replaced my mainshaft speed sensor pickup assembly ... $180 for a thing the size of big black marker. Well it fixed a problem I was having with a flashing D4 and transmission not going in to lockup, but now it's working great. Anyways ...

Can you quickly summarize what the bulletin was? Is it that bad that Honda will replace it for you for free? If so go for it. Otherwise, as they say, if it ain't broke don't mess with it.

If you want to see if your linear solenoid is okay then disconnect the solenoid connector and measure the resistance between the two terminals on the linear solenoid. It should measure 5 ohms. If not it's most likely bad. For comparison mine reads 7 ohms. + or - a few isn't going to matter much.
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Old 04 Dec 2009, 07:22 pm
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Default Re: Linear Shift Solenoid replace

Oh okay, I just found the bulletin. In that case yes go ahead and do it yourself if you have a 2 or 3 hours to work on it, you should be able to do it a couple hours.

For anyones interest here it is
TSB Number: 00-012
Date: June 20, 2000

Applies To:
1996-00 Civic - See VEHICLES AFFECTED
1997-99 CR-V - See VEHICLES AFFECTED

Harsh Shifting Automatic Transmission
(Supersedes 00-012, dated April 4, 2000)

SYMPTOM:
The transmission shifts harshly, or it may stay in first gear. The MIL may be on with DTC P0730 or P0715 stored.

PROBABLE CAUSE:
Contamination of the linear solenoid and its associated passages inside the transmission.

VEHICLES AFFECTED:
1996-99 Civic - All with A/T (except HX with CVT)

2000 Civic:
� 4-door DX, LX - From VIN 1HGEJ6...YL000001 thru 1HGEJ6...YL019847
� 4-door EX - From VIN 1HGEJ8...YL000001 thru 1HGEJ8...YL020169
� 4-door EX - From VIN 2HGEJ8...YH500001 thru 2HGEJ8...YH522686
� 2-door DX - From VIN 1HGEJ6...YL000001 thru 1HGEJ6...YL025993
� 2-door EX - From VIN 1HGEJ8...YL000001 thru 1HGEJ8...YL026389
� 3-door CX, DX - From VIN 2HGEJ6...YH100001 thru 2HGEJ6...YH1025571997-99 CR-V - All

CORRECTIVE ACTION:
Flush the transmission with Genuine Honda ATF, then replace the linear solenoid.

PARTS INFORMATION:
Linear Solenoid Assembly:P/N 28250-P4R-315, H/C 5317219

*Drain Bolt Washer: P/N 90471-PX4-000, H/C 3300936*

In warranty:
The normal warranty applies.

Out of warranty:
Any repair performed after warranty expiration may be eligible for goodwill consideration by the District Service Manager or your Zone Office. You must request consideration, and get a decision, before starting work.

You know what I would do? If you car falls inside the affected VIN numbers, I'd try it. If it works you saved yourself the cost of another transmission. If it doesn't work, well you rolled the dice and came up snake eyes.

FIY a Linear Solenoid is $142.55.


I actually haven't checked to see if my 98 Civic has the same VIN numbers but I don't think I've experienced any harsh shifting. In any case yes if you are experiencing those same symptoms then flush. Drain the tranny, should only get 3L out of the drain bolt and refill with another 3L. I just bought 12L of the stuff, it's not cheap either, it's like $10 a litre for the proper ATF Honda transmission fluid from Honda. then change the linear solenoid, I'm not sure if you should change it after you drain it, check on that one.

Someone may have put another brand of transmission fluid in it like dextron or something, they aren't good for Honda transmissions for some reason as I've been hearing.
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Old 04 Dec 2009, 08:01 pm
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Default Re: Linear Shift Solenoid replace

well actually, the car won't go into Drive gears once warmed up. when cold it will engage and drive for 5 minutes, than it'll completely cut out. At first I thought it might be a plugged Transmission Oil filter, but i'm told the one on these transmissions aren't really serviceable?? Than when I googled my symptoms it came up with the linear solenoid.

Also; the oil was changed by her husband who was unaware these transmissions require a specific transmission fluid, and put regular Dextron in it..

Last edited by 67Stang300zx; 04 Dec 2009 at 08:04 pm.
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Old 04 Dec 2009, 08:48 pm
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Default Re: Linear Shift Solenoid replace

oops, yikes. Yep, flush that tranny. Honda recommends open plug and drain the 3 L that comes out, then fill, drive for a while, drain, fill, drive then drain and fill again. That's the standard transmission flush procedure. Drain 3 times, I think that's a bit much so you might get away with just 2.

Also you might be able to get away with removing and cleaning the linear solenoid, not sure how reliable that would be since I've never done it, nor heard of it.

Anyways try the transmission oil change first and see what happens and then go from there.
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Old 04 Dec 2009, 10:45 pm
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Default Re: Linear Shift Solenoid replace

Ok, I'm doing all of this tomorrow, i'll let you guys know how it goes. Thanks for the info!
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Old 02 Apr 2011, 03:58 pm
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Default Re: Linear Shift Solenoid replace

Wow so glad I found this thread, I changed my fluid the other day and it didn't seem to help so my next option I knew of was the torque converter til I heard about solenoid problems. My only problem is I read A consumer review and it had stated " linear shift solenoid" And when I start looking there is A shift solenoid plus A linear solenoid. So is it for sure the linear solenoid that is causing the problem or are both of them in need of replacement.
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Old 17 Jun 2011, 10:45 am
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Default Re: Linear Shift Solenoid replace

Well replaced solenoid along with 2 flushes as described and car is fine. But is anyone sure if you are supposed to use some type of gasket sealant or not. I didn't and have small amount of fluid on my case, not sure if it's jut leftover from solenoid removal or if it's because I didn't use sealant
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