OEM 2009 Chevrolet Tahoe Muffler

2009 Chevrolet Tahoe Muffler Parts and Q&A

• Q: How to replace the exhaust muffler on those equipped with LC9, LMG, LY5, or L76 engines on 2009 Chevrolet Tahoe?

  A: In order to install a new exhaust Muffler on those vehicles that are equipped with lc9, lmg, ly5, or l76 engines, start by lifting and supporting the given vehicle. Unplug the chassis wiring harness electrical from the right rear wheel speed sensor wiring harness electrical, and if necessary the chassis wiring harness electrical from the right rear Shock Absorber and the right rear air line from the Shock Absorber. Pull off the right rear wheel speed sensor wiring harness connector from the frame without prying the rear suspension sensor link rod from rear position sensor ball stud. Denothe right rear automatic level control sensor link rod from the sensor by assisting the sensor lever twisting the rod ball dis-adjoining from the ball stud. Place a suitable adjustable jack under the rear axle. Then, remove the correct suspension bolt and attach it to the right axle's mounting point. Remove the designated area around the rear opening using the appropriate tool. Also, remove the rear cover, and if necessary, remove the inner components from the rear opening. Take off the right rear stabilizer shaft link to frame bolt and nut, right rear stabilizer shaft link, right rear Shock Absorber lower bolt and nut. Lower the right side of the rear axle to take out the Muffler loosening the Catalytic Converter to Muffler clamp bolt and lubricating the insulators so that it become eady to pull them off. Even with help, you should be able to get all the insulators down from the hangers on the exhaust system (1, 2, and 3), as well as the insulator near the resonator without overstretching the flex coupler. Prolonged use causes the Muffler assembly to become loose, you need to remove the assembly, and afterwards lubricate the insulators for the installation. With the help of another person, bolt the Muffler assembly and the insulators to the exhaust system hangers (1, 2, and 3), and close to the resonator. Mount the Muffler assembly to the three-way Catalytic Converter and tighten the clamp bolt using 44 nm (32 lb ft) of torque. Lift the rear axle into position using the adjustable jack, apply the nut and lower bolt to the left rear shock, and tighten as you place all nut and bolt to 95 nm (70 lb ft). Mount the right rear stabilizer shaft link bolt to the frame and right rear stabilizer shaft link nut, connecting to 65 nm (48 lb ft). Mount the right rear axle tie rod bolt and nut and the rear axle vent hose if it is needed and the vent hose swivel clip if needed. Insert the right rear link rod to the ball studs on the sensors using the hose clamp pliers (J 38185), in making sure that the rear axle wiring harness clip is installed properly. Lastly, secure the right rear wheel speed sensor wiring harness clips to the frame and the Control Arm Bracket, secure the right rear wheel speed sensor wiring harness electrical connector clip to the frame, and if so required, secure the right rear air line to the Shock Absorber and to the chassis wiring harness electrical connector to the right rear Shock Absorber. Tie in the chassis wiring harness electrical connector with the right rear wheel speed sensor wiring harness electrical connector and then lower the vehicle.