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Old 06-07-2003, 11:34 PM
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Post 700r4 not shifting out of 1st gear

I have a 1970 GMC truck with a 700r4 trans. It will not shift out of 1st, engine just revs. I checked the trans fluid, it's fine. About a week ago I had the TV cable replaced after noticing it was broke. The truck had just come out of storage and I had drivin it 50 to 100 miles before replacing it. I've looked at some web sites showing how to properly adjust the TV cable and it appears to set right. ANY IDEAS?

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Old 06-08-2003, 04:40 AM
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Stripped governor gear or stuck governor valve. An easy place to start checking once you've verified the tv cable adjustment is correct.
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Old 06-08-2003, 04:27 PM
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In order to have an upshift the trans needs Governor pressure to overcome Throttle and spring pressure.If throttle pressure is high (throttle cable/ linkage/valve stuck) it will keep it in first gear until the Governor pressure(vehicle speed) overcomes it. To check this you will need to do a pressure test. A quick check is.' the shift from park to drive,is it harsh now . if it is ,then the pressure is boosted. Which means the trottle linkage and/or valve is your problem. If the pressure is not boosted or harsh then you can remove the tin cap at the rear of the trans to check the governor.
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