Transmission test, advice needed
#1
Registered User
Thread Starter
Join Date: Feb 2011
Location: Rio Rancho, NM
Posts: 56
Likes: 0
Received 0 Likes
on
0 Posts
Transmission test, advice needed
Hey guys!
I have an 88 4R with a 3.0 and auto. I am having issues with OD not engaging. All other gears shift perfectly.
I researched and found that you can disconnect a plug and do a "manual shift" test to confirm it is a solenoid issue. You are supposed to road test after you remove the solenoid wire connector.
In my searches I have seen multiply images and they all look different.
Can someone please tell me exactly where this connector is? There are multiple connectors on the drivers side of the trans. I have seen pix of the tranny and some of the engine compartment so I really dont know where the connector is that I am supposed to disconnect to do the road test.
The more basic you can instruct me the better. (if you can post a pix even better)
Not to be a jerk but please please please do not tell me about the temp sensor, t-stat or anything else under the hood. ALL parts under the hood that could effect this have been replaced and checked out fine.
thanks!
Mark
I have an 88 4R with a 3.0 and auto. I am having issues with OD not engaging. All other gears shift perfectly.
I researched and found that you can disconnect a plug and do a "manual shift" test to confirm it is a solenoid issue. You are supposed to road test after you remove the solenoid wire connector.
In my searches I have seen multiply images and they all look different.
Can someone please tell me exactly where this connector is? There are multiple connectors on the drivers side of the trans. I have seen pix of the tranny and some of the engine compartment so I really dont know where the connector is that I am supposed to disconnect to do the road test.
The more basic you can instruct me the better. (if you can post a pix even better)
Not to be a jerk but please please please do not tell me about the temp sensor, t-stat or anything else under the hood. ALL parts under the hood that could effect this have been replaced and checked out fine.
thanks!
Mark
#2
Registered User
Im not familiar with Toyota autos, but am familiar with domestic autos. A few ideas would be the TCC switch/solenoid (torque converter control). Also if the detent or kick down is cable operated might want to reset its adjustment.
#3
Registered User
Thread Starter
Join Date: Feb 2011
Location: Rio Rancho, NM
Posts: 56
Likes: 0
Received 0 Likes
on
0 Posts
Thanks for the info. I am pretty confident that the solenoid is bad but to confirm I need to pull the connector and shift manually thru the gears into OD to confirm it is a bad solenoid. But I dont know where the plug connector is located that I am supposed to disconnect to perform the test.
#4
Registered User
#5
Registered User
Thread Starter
Join Date: Feb 2011
Location: Rio Rancho, NM
Posts: 56
Likes: 0
Received 0 Likes
on
0 Posts
Thanks to Justin I got my answer! I disconnected the ECU for the tranny and manually shifted. OT worked fine.
Now I know what I am doing this weekend, changing a few solenoids!
Now I know what I am doing this weekend, changing a few solenoids!
Thread
Thread Starter
Forum
Replies
Last Post
FS[PacNorWest]: T100 auto trans/tcase - Bay area, CA
94whiterunner
Engines - Transmissions
2
09-22-2015 07:25 PM