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HIGH STALL SPEEDS (STALL IN RANGES 1-6) LOW STALL SPEEDS (STALL IN RANGES 1-6) Low main pressure Refer to Low Main Line Pressure in All Leaking pressure control solenoids Repair or replace the pressure control Erratic speed sensor signal Refer to the speed sensor DTCs. Piston seals leaking or clutch plates slipping Overhaul the transmission. Condition Action Not in gear Select D, DRIVE. Low fluid level, aerated fluid Add fluid to the proper level. Refer to Faulty torque converter Replace the torque converter. Refer to Incorrect torque converter Replace the torque converter. Refer to Clutch pressure low Refer to Low Main Line Pressure in 1-2-3-4 clutch or Low and Reverse clutch or Rebuild the 1-2-3-4 clutch or the Low and Higher power engine Confirm proper engine match. Condition Action Engine not performing efficiently Plugged or restricted injectors Refer to appropriate engine article.
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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