OEM 2008 Buick Enclave Cam Gear

2008 Buick Enclave Parts Questions & Experts Answers

• Q: How to Replace the Cam Gear on Bank 2 (Left Side) Exhaust on 2008 Buick Enclave?

  A: To change the left exhaust camshaft position actuator on bank 2 you need one Timing Chain retention tool type en-48313. Begin the process by taking out both the lower Intake Manifold and the left camshaft cover. You need to detach both left intake and exhaust camshaft position sensors before removing the left intake and exhaust camshaft position actuator solenoids. Turn the crankshaft balancer nut clockwise single direction then rotate the balancer until camshafts match parallel to the camshaft cover rail. Mark corresponding positions on both the Timing Chain links and the neighboring teeth of the intake and exhaust camshaft actuators. Set up the open-end wrench on the hex cast inside the left intake and exhaust camshafts to untighten the chain that links the actuators. Set the en-48313 legs back then slide it between the camshaft actuators ensuring the lowest part of the tool touches directly over the cylinder head surface. Step one leg of the en-48313 tool toward Timing Chain Guide by turning its t-handle clockwise and insert one end behind the Timing Chain Guide. Press forward with the legs until they reach the Timing Chain and nest the foot completely into the chain links for stability. First tighten the en-48313 manually before loosening the Timing Chain with an open-end wrench again. The en-48313 is now properly installed. Open the open-end wrench to stop engine rotation and loosen the camshaft position actuator bolt before taking out the left exhaust actuator bolt and actuator. Hang the Timing Chain over the en-48313 if both actuators are being removed and replaced. Realign the marks from disassembly between the exhaust camshaft actuator and intake camshaft actuator while putting them in position. Set the exhaust camshaft actuator onto its camshaft position and fasten the actuator's bolt by hand. You must then take off the en-48313 and torque the exhaust camshaft position actuator bolt to 58 n.m (43 lb ft). Reinstall both intake and exhaust solenoids along with sensors and left camshaft parts before placing on the lower Intake Manifold.