OEM Chevrolet Astro Automatic Transmission Filter

Chevrolet Astro Automatic Transmission Filter Parts Questions & Experts Answers

• Filter
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  Q: How to Replace the Automatic Transmission Filter and Fluid on Chevrolet Astro?

  A: You should lift and stabilize your vehicle while setting a drain pan under the Oil Pan of the transmission. If equipped with an Oil Pan Drain Plug you must remove it but you can maintain the range selector cable bracket in place by releasing the bolts so that the pan drops lower. Use a rubber mallet to tap the Oil Pan while gently loosening rear bolt while you match the procedure from the front side with bolt removal of the Oil Pan. Finally turn off the drainage stopper and remove all Oil Pan bolts before separating the combination of Oil Pan and gasket. Grasp the filter tightly while twisting it to unfasten it then remove the filter seal by using pliers if the seal is resistant to removal. The seal removal step needs to be followed by examining the fluid color and filter for any signs of clutch material and bronze slivers or steel particles. Use solvent to clean the transmission case as well as the Oil Pan gasket surfaces until all previous gasket material is eliminated. Use automatic transmission fluid to cover the new filter seal before putting it into the transmission case appropriately with a suitable size socket. You should begin by mounting the new filter then add the Oil Pan with its new gasket before evenly tightening the transmission case bolts against the Oil Pan to 11 nm (97 inch lbs.). The range selector cable bracket installation requires reinstallation after which you must tighten its bolts to 25 nm (18 ft. Lbs.). Sealant (GM P/N 12346004) should be applied to the Drain Plug threads on the Oil Pan when equipped before installing and securing the plug with 18 nm (13 ft lbs). To correctly fill the transmission, lower the vehicle while using dexron iii transmission fluid but only check the cold fluid level during the initial fill process. Assess for any leaks around the Oil Pan gasket.