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 Gen1 Montero not going in to overdrive
#1075909
12/29/14 07:28 PM
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Joined: May 2004
Posts: 81
OP
Getting the Wheeling Fever
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I am having a problem that has gotten worse over time. It takes a long time to get to top gear on the highway. Now it wont go in to OD until the vehicle has been on the road for 45 minutes or so. When it finally does shift to top gear, the OD light switch on the dash works. I can turn OD on and off - the tranny shifts up, then back down like it should. Any ideas of what might cause this?
1991 LWB Montero LS 213kmi - original. Stock.
2003 LWB Montero LTD 95kmi - original. All leather, stock and sweet
----Drive it like you have to use it to get to work in the morning.----
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Re: Gen1 Montero not going in to overdrive
[Re: jwp]
#1075910
12/29/14 11:28 PM
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Joined: Jul 2002
Posts: 1,758
Body Damage is Cool
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Yes, that sounds familiar. Two possibility here. It might be something as simple as Tranny Fluid service time. However, the symptoms you are describing make it seem more like the OD relay has partially failed. You may just need to disconnect it, clean the spade connectors and reconnect it. You may need to replace it entirely. Here is a picture of where to find it. ![[Linked Image]](https://lh6.googleusercontent.com/-POT9FrJ5w5c/Uu3Qwxz1lhI/AAAAAAAAF1c/9Xfkou7Bf1c/s1152/Tricky%2520Connection%25201%2520and%25202.jpg)
89 Raider - V6, Automatic, rear LSD, A/C Retrofit, Cruise Control Retrofit.
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Re: Gen1 Montero not going in to overdrive
[Re: jwp]
#1075911
12/30/14 01:38 AM
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Joined: Aug 2014
Posts: 173
Wheeler
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1990 LWB RS A/T
1990 LWB Base A/T
1991 LWB LS A/T Going...Going...
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Re: Gen1 Montero not going in to overdrive
[Re: danz91crx]
#1075912
12/30/14 05:57 AM
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Joined: May 2000
Posts: 6,132
Trail Leader
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Check the temperature switch on the engine. It keeps the OD off until the engine is up to temperature. Sounds like yours is failing.
87 Turbo Intercooled Raider, roller cam, torsen rear diff, LSD front diff, lockup auto with modified converter, V6 brakes, low transfer case gears...
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Re: Gen1 Montero not going in to overdrive
[Re: Kevin C]
#1075913
12/30/14 11:28 PM
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Joined: May 2004
Posts: 81
OP
Getting the Wheeling Fever
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Thanks guys, good stuff. i'll keep you posted.
1991 LWB Montero LS 213kmi - original. Stock.
2003 LWB Montero LTD 95kmi - original. All leather, stock and sweet
----Drive it like you have to use it to get to work in the morning.----
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Re: Gen1 Montero not going in to overdrive
[Re: Jay Ayala]
#1075914
12/30/14 11:29 PM
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Joined: May 2004
Posts: 81
OP
Getting the Wheeling Fever
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thank you for taking the time to take a pic!
1991 LWB Montero LS 213kmi - original. Stock.
2003 LWB Montero LTD 95kmi - original. All leather, stock and sweet
----Drive it like you have to use it to get to work in the morning.----
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Re: Gen1 Montero not going in to overdrive
[Re: jwp]
#1075915
12/31/14 12:41 AM
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Joined: Jul 2002
Posts: 1,758
Body Damage is Cool
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It was no trouble. That photo was taken a decade ago when I retrofitted a cruise control system from a 1991 Montero.
89 Raider - V6, Automatic, rear LSD, A/C Retrofit, Cruise Control Retrofit.
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