Overdrive Solenoid

203Cree · 03-05-2009, 11:17 AM

Or relay.... where is it? I find the parts in the FSM, but they aren't very clear on location. Any help would be appreciated!

Thanks
Rob

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Shawn6string · 03-05-2009, 12:11 PM

What is the problem?

203Cree · 03-05-2009, 12:43 PM

It's shifting into overdrive in every gear. The converter is locking up prematurely as well. I'm just going to unhook the relay or solenoid, whichever I find first.

GSGALLANT · 03-06-2009, 04:30 AM

Quote:

Originally Posted by 203Cree

It's shifting into overdrive in every gear. The converter is locking up prematurely as well. I'm just going to unhook the relay or solenoid, whichever I find first.

Overdrive is your last gear. So in a four speed auto tranny, it would be gear #4. It can't be "shifting into overdrive in every gear", so to speak, because overdrive is a gear by itself. Do you mean that no matter what you select on the shift lever (L, 2 or D), the truck is trying to start off in O/D? Or do you mean the torque converter is locking up in every gear? Depending on the transmission that you have, and how you are driving (it is throttle position dependant), it is also normal for the TC to lock up in every gear.

Be a bit more descriptive with the problem so that we can help you better.

203Cree · 03-06-2009, 12:56 PM

Quote:

Originally Posted by GSGALLANT

Overdrive is your last gear. So in a four speed auto tranny, it would be gear #4. It can't be "shifting into overdrive in every gear", so to speak, because overdrive is a gear by itself. Do you mean that no matter what you select on the shift lever (L, 2 or D), the truck is trying to start off in O/D? Or do you mean the torque converter is locking up in every gear? Depending on the transmission that you have, and how you are driving (it is throttle position dependant), it is also normal for the TC to lock up in every gear.

Be a bit more descriptive with the problem so that we can help you better.

Okay, I can do that. Put it in any gear you want, it will take off locked up. Under partial throttle, where the converter should be locked, it unlocks. Under load, when the converter should unlock, it locks. I don't care to fix the lockup or the overdrive solenoid, which ever you want to refer to it as. I just want to unplug the damn thing so it's disabled, lol. It's taking an otherwise good running truck (albeit under geared) and making it a turd.

I can find the relay and solenoid descriptions as far as what they look like in the service manual, but they don't tell you in what general area to look for those parts. I've poked around and haven't seen them yet. I just need someone to tell me where on the trans the solenoid is or where on the truck that relay is.

4runnerx3 · 03-06-2009, 03:17 PM

You only have lock up in 3rd and OD. There are three wires going in the side of the tranny for the solenoids, near the selector mechanism. I would unplug the ECT unit and do a manual shift to see if you have an electrical or mechanical problem. If the OD light flashes you have an electrical problem, it will not tell you if you have a mechanical problem. With the unit unplugged, L is 1st, 2 is 3rd and D is OD. You will not have 2nd gear because the shift solenoids are not working.

Here's a pic showing the layout of the solenoids in the valve body.

203Cree · 03-06-2009, 08:07 PM

Quote:

Originally Posted by 4runnerx3

You only have lock up in 3rd and OD. There are three wires going in the side of the tranny for the solenoids, near the selector mechanism. I would unplug the ECT unit and do a manual shift to see if you have an electrical or mechanical problem. If the OD light flashes you have an electrical problem, it will not tell you if you have a mechanical problem. With the unit unplugged, L is 1st, 2 is 3rd and D is OD. You will not have 2nd gear because the shift solenoids are not working.

Here's a pic showing the layout of the solenoids in the valve body.

Assuming it's working correctly, yeah, you're right. Thanks for the help.

pcmentor · 03-06-2009, 09:53 PM

On my 85 the OD solenoid is on the middle driver side of the trans. There's a rubber boot with a connector under.

yodercrawler55 · 05-20-2009, 09:29 PM

hey im having a similar problem, my truck is an 85 with an auto. It will start off fine when starting from 0 but when I get up to around 40 the over drive kicks in and just boggs down. I know it should not be doing this because it will do this when going up hills, I will want to cruise at 45 up a hill but I have to floor it and let it suck up all my gas. There is a gear in between there that is perfect when trying to do that speed but it breifly hits it then goes into od. Is this the solenoid?

pcmentor · 05-20-2009, 11:02 PM

I have heard on our trucks there's an OD Altitude cutoff. At high elevations it will not go into OD. This may be malfunctoning on your rigs.

yodercrawler55 · 05-21-2009, 08:09 AM

Thats a possibility, I would like the auto in my runner if it didn't do this. I was lookin at shift solenoids and they are like 140 bucks for a small little thing!

FZRDude · 05-23-2009, 09:08 PM

I have a similar but oppsite problem with my 85 2x4 Deluxe. Mine will not shift into OD all the time. Sometimes it will shift into OD after 5 min of normal driving and most times it won't shift into OD at all.

buckz6319 · 05-27-2009, 01:07 PM

I would like to chime in here and say that I tore apart a A340H last summer and there were 4 solenoids in that tranny.The pictures in above post only show 3 solenoids..is 3 correct or 4?

RMA · 05-27-2009, 01:27 PM

Dwayne I have been meaning to ask you about the 4 solenoids, I just removed 3 from a 1990 A340H and when I changed the tranny fluid and filter on mine (A340H) I only saw 3 on that tranny as well. They look like the gold colored ones not the black one.

buckz6319 · 05-27-2009, 02:53 PM

RMA.....I know what you mean about the 4th solenoid

.I know for sure that all those solenoids came from that transmission in the picture above.I will have to do some more

as to which part of the transmission I got the black one from.It came from that A340H and if you look at the picture you can see that I separated the whole entire thing including the hydraulic transfer case from the transmission.
In that mangled pile of parts is where the solenoids came from

...maybe someone else will know the answer to the mystery
I think it came from the hydraulic transfer case? it shares the same transmission fluid as the main transmission

GSGALLANT · 05-28-2009, 07:37 AM

On an A340H, the 4th solenoid is in the transfer valve body. You have to remove the small transfer case pan to get to it.

buckz6319 · 05-28-2009, 07:48 AM

Quote:

Originally Posted by GSGALLANT

On an A340H, the 4th solenoid is in the transfer valve body. You have to remove the small transfer case pan to get to it.

GSGALLANT
Thanks for the input

...I knew that I removed the 4th solenoid from that transmission...so I would guess that the black solenoid came from the hydraulic transfer case

Hoss_1981 · 11-02-2009, 01:04 PM

Did you ever figure out what your shift problem was? Mine is doing the exact same thing. Any ideas would help

203Cree · 11-02-2009, 02:32 PM

Nope. I'm trying to get a replacement trans now. I'm going to go thru it when I get it out, but I'm guessing it's not a solenoid problem. It does the same thing with the ETC box unplugged, so that leads me to believe it's in fact a mechanical problem.

Team420 · 11-02-2009, 07:42 PM

check your tps!! mine did this, when the tps was out of spec. a quick test would b to unplugg the tps, and see if it shifts better.

203Cree · 11-03-2009, 07:45 PM

Quote:

Originally Posted by Team420

check your tps!! mine did this, when the tps was out of spec. a quick test would b to unplugg the tps, and see if it shifts better.

Man thanks for the insight. I had suspected it myself but wasn't sure. I went ahead and replaced it tonight and wow, like a whole new truck.

03-05-2009, 12:11 PM	#2 (permalink)
Shawn6string Contributing Member Join Date: Apr 2008 Location: Alabama Posts: 203	What is the problem? __________________ 88 4runner 3. don't know--- project 88 4runner 4 cyl auto - Bone stock Plus BFG 31/10/50 JACK'EM HIGH CAUSE FAT CHICKS CAN'T CLIMB Shawn

03-05-2009, 12:43 PM	#3 (permalink)
203Cree Registered User Join Date: Jan 2009 Location: Olathe, KS Posts: 42	It's shifting into overdrive in every gear. The converter is locking up prematurely as well. I'm just going to unhook the relay or solenoid, whichever I find first. __________________ 85 4Runner DLX. Autotragic with some tires

05-20-2009, 09:29 PM	#9 (permalink)
yodercrawler55 Registered User Join Date: Sep 2008 Location: Lake Tapps, Washington Posts: 224	hey im having a similar problem, my truck is an 85 with an auto. It will start off fine when starting from 0 but when I get up to around 40 the over drive kicks in and just boggs down. I know it should not be doing this because it will do this when going up hills, I will want to cruise at 45 up a hill but I have to floor it and let it suck up all my gas. There is a gear in between there that is perfect when trying to do that speed but it breifly hits it then goes into od. Is this the solenoid? __________________ 1985 toyota 4Runner 33" BFG km2's, 22re, auto, pacesetter header, 3" rough country lift, 2" body lift

05-21-2009, 08:09 AM	#11 (permalink)
yodercrawler55 Registered User Join Date: Sep 2008 Location: Lake Tapps, Washington Posts: 224	Thats a possibility, I would like the auto in my runner if it didn't do this. I was lookin at shift solenoids and they are like 140 bucks for a small little thing! __________________ 1985 toyota 4Runner 33" BFG km2's, 22re, auto, pacesetter header, 3" rough country lift, 2" body lift

05-27-2009, 01:07 PM	#13 (permalink)
buckz6319 Registered User Join Date: Jul 2008 Location: Griffin GA Posts: 730	I would like to chime in here and say that I tore apart a A340H last summer and there were 4 solenoids in that tranny.The pictures in above post only show 3 solenoids..is 3 correct or 4? __________________ 95 Toyota 4runner SR5 4x4 V-6 Auto,....

03-06-2009, 03:17 PM	#6 (permalink)
4runnerx3 Registered User Join Date: Jul 2006 Location: North Carolina Posts: 834	You only have lock up in 3rd and OD. There are three wires going in the side of the tranny for the solenoids, near the selector mechanism. I would unplug the ECT unit and do a manual shift to see if you have an electrical or mechanical problem. If the OD light flashes you have an electrical problem, it will not tell you if you have a mechanical problem. With the unit unplugged, L is 1st, 2 is 3rd and D is OD. You will not have 2nd gear because the shift solenoids are not working. Here's a pic showing the layout of the solenoids in the valve body.

03-06-2009, 09:53 PM	#8 (permalink)
pcmentor Registered User Join Date: Jul 2006 Posts: 177	On my 85 the OD solenoid is on the middle driver side of the trans. There's a rubber boot with a connector under.

05-20-2009, 11:02 PM	#10 (permalink)
pcmentor Registered User Join Date: Jul 2006 Posts: 177	I have heard on our trucks there's an OD Altitude cutoff. At high elevations it will not go into OD. This may be malfunctoning on your rigs.

05-23-2009, 09:08 PM	#12 (permalink)
FZRDude Registered User Join Date: Jul 2007 Posts: 2	I have a similar but oppsite problem with my 85 2x4 Deluxe. Mine will not shift into OD all the time. Sometimes it will shift into OD after 5 min of normal driving and most times it won't shift into OD at all.

05-27-2009, 01:27 PM	#14 (permalink)
RMA Contributing Member Join Date: Dec 2008 Location: San Jose ,Ca Posts: 1,132	Dwayne I have been meaning to ask you about the 4 solenoids, I just removed 3 from a 1990 A340H and when I changed the tranny fluid and filter on mine (A340H) I only saw 3 on that tranny as well. They look like the gold colored ones not the black one. __________________ '89 2wd X-tracab,W55,22re,My DD '94 SR5 4Runner 4x4,A340H, 3VZE,Alpine deck,Wifes DD '88 SR5 4runner ,A341E,1UZ-FE,kenwoodVZ907, XRC8, Homemade Roof rack.33x10.50,15 KM2 1" home made body lift, BJ spacers ,CB, rear disc brakes ,lockright rear.sky ebrake,truetrac front. My swap thread http://www.yotatech.com/f161/1uz-fe-...0-3vze-185324/

05-27-2009, 02:53 PM	#15 (permalink)
buckz6319 Registered User Join Date: Jul 2008 Location: Griffin GA Posts: 730	4th Solenoid? RMA.....I know what you mean about the 4th solenoid.I know for sure that all those solenoids came from that transmission in the picture above.I will have to do some more as to which part of the transmission I got the black one from.It came from that A340H and if you look at the picture you can see that I separated the whole entire thing including the hydraulic transfer case from the transmission. In that mangled pile of parts is where the solenoids came from...maybe someone else will know the answer to the mystery I think it came from the hydraulic transfer case? it shares the same transmission fluid as the main transmission __________________ 95 Toyota 4runner SR5 4x4 V-6 Auto,.... Last edited by buckz6319; 05-27-2009 at 03:01 PM.

05-28-2009, 07:37 AM	#16 (permalink)
GSGALLANT Registered User Join Date: Mar 2005 Location: New Brunswick, Canada Posts: 1,760	On an A340H, the 4th solenoid is in the transfer valve body. You have to remove the small transfer case pan to get to it. __________________ 2002 4Runner, Auto-A340F, 3.4L, 4.30 Gears TJM T15 Front Bumper & Warn M8000, 4xInnovation sliders, Sonoran Steel 1.2 Lift, Toytec LCA Skids, Tundra Brake Upgrade (231mm), Extended rear diff breather, Deckplate Mod, Andymod, Dual batt setup with Optima blue top aux battery, Hardwired 1000W inverter, Aux fuse box, Full time power to 12V plugs, Yaesu FT7800R Radio, "4-air" system for airing up/down tires. 2004 Camry LE - stock (and will stay that way) 1993 4Runner has been sold

11-02-2009, 01:04 PM	#18 (permalink)
Hoss_1981 Registered User Join Date: Oct 2009 Posts: 13	Did you ever figure out what your shift problem was? Mine is doing the exact same thing. Any ideas would help

11-02-2009, 02:32 PM	#19 (permalink)
203Cree Registered User Join Date: Jan 2009 Location: Olathe, KS Posts: 42	Nope. I'm trying to get a replacement trans now. I'm going to go thru it when I get it out, but I'm guessing it's not a solenoid problem. It does the same thing with the ETC box unplugged, so that leads me to believe it's in fact a mechanical problem. __________________ 85 4Runner DLX. Autotragic with some tires

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