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2009
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Impala LTZ
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Hydraulic Diagrams
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Automatic Transmission - 4T65-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis
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Description And Operation
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Automatic Transmission Hydraulic Diagrams
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Park - Engine Running
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1-2 Shift Valve (318)
1-2 Shift Valve (318)
1-2 signal fluid pressure holds the valve in the downshifted position against spring force.