1989 Nissan Patrol TB42 Auto Problem with lockup

Submitted: Saturday, Jun 03, 2006 at 22:03
ThreadID: 34583 Views:8093 Replies:3 FollowUps:1
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I have a 1989 Nissan Patrol Auto TB42 Petrol/gas when you get to about 85kmph it will drop into lockup, but if you are going up a slight incline the rev counter flicks and you can feel the surging it wants to come out of lockup but won't. If speed drops to 80kmph it will come out of lockup using speed sensor no problem. If you floor it to kick it back no problem. If I use power switch I have had cases where it will surge in 3rd, but I think that was heat related as it was a very hot day and I was towing a trailer, but not as bad as when in lockup. If you keep forcing it in lockup it will drop back to overdrive and will not go into lockup again until you stop and turn off ignition and restart engine then lockup will work again. I have rang a lot of people about this problem and I have had a lot of different answers. I'm just hoping that someone else has had same problem and can steer me in right direction. It has 239k on truck and the guy I bought it off said the Transmission was done up at 200k. I've had it since 227k and it has been doing it all the time. The guy I bought it off was in Sydney and his wife just used it as a shopping trolley to shops, no long trips so they probably didn't notice it. I live in the Country and all my running is at 100k so it bugs me all the time. I have been told it is a temp sensor, but it is expensive just to try that and if it doesn't fix it I'm out of pocket and still got the problem.

Thanks in advance

Straps
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