Transmission

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uli93

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on my 99 tahoe with the 5.7 vortec V8 the tranny shifts at high rpm when taking off it shifts around 5000 rpm into 2nd gear then drives normal but with a slightly high rpm it also doesnt drive while in reverse it wont move an inch when it is in reverse it sounds like the torque converter just whines kinda like a supercharger but not that loud i changed the filter and fluid but it made no difference has anybody had this problem?
 

SunlitComet

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:welcome:
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Slow, slipping or no reverse “lo-reverse” clutches are worn out, fluid leak in the reverse apply circuit, or broken sunshell.. May also have worn boost valve. It is possible to remedy a fluid problem by removing the checkball from its cage in the case in the rear of the Transmission may help (must remove valvebody), or adding a high-viscosity additive such as Lucas Transmissionmission additive or other seal restorer product.



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1-2 shift is delayed and harsh, may not shift into Over Drive CheckThrottlePosition Sensor (TPS).for smooth and linear electrical response over the entire range of motion. If not, replace.
 

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