GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

no 4tg gear???

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Old Dec 14, 2012 | 01:43 PM
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Default no 4tg gear???

I was driving down the hi way today and for whatever reason its not shifting into overdrive just 3rd. Any suggestions
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Old Dec 14, 2012 | 01:46 PM
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Trans rebuild?
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Old Dec 14, 2012 | 01:50 PM
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It was just rebuilt like 4 months ago. I thought the 3rd and 4th used some of the same clutches. Wouldn't they both go out?
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Old Dec 14, 2012 | 01:51 PM
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slipping in 4th? or just refuses to go into 4th at all??

Try down shifting into 2nd.. then up shift to 3rd.. wait a second and then try 4th..
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Old Dec 14, 2012 | 01:53 PM
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It doesn't even try to go into 4th. Hits third then the converter locks about 55 then that's it.
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Old Dec 14, 2012 | 01:54 PM
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Strange..
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Old Dec 14, 2012 | 02:05 PM
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Could it be a shift selenoid?
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Old Dec 14, 2012 | 02:06 PM
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I haven't tried to manually shift I drive it home and just got a ride to work today
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Old Dec 14, 2012 | 02:08 PM
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Well the other day when I was cruising it would jump a couple hundred rpms every now and then but I thought it was the converter
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