OEM Chevrolet Tracker Exhaust Manifold

Chevrolet Tracker Exhaust Manifold Parts and Q&A

• Exhaust Manifold
  91174460
  Q: How to service the exhaust manifold on Chevrolet Tracker?

  A:

  Begin service work on the Exhaust Manifold after waiting for system temperature to drop and before disconnecting the Battery Cable. Service of the Exhaust Manifold requires technicians to disconnect h02s1 sensor electrical connector and unfasten two nuts and three bolts along with upper Exhaust Manifold heat shield to remove components from the Exhaust Manifold. Following support from a jack the technician should remove 2 bolts and a nut and also remove the Exhaust Manifold reinforcement bracket from the combination of block and Exhaust Manifold. Next, remove 2 bolts and the front pipe/three way catalytic converter (TWC) assembly from the Exhaust Manifold . Reduce the vehicle profile and extract nine Exhaust Manifold support nuts together with its lift hook which leads to exhausting the manifold and its gasket. Remove the three bolts to lower the Exhaust Manifold heat shield from the Exhaust Manifold before extracting the heated oxygen (H02S1) sensor from the Exhaust Manifold location. The three way catalytic converter (TWC) front pipe gasket must be taken off from the Exhaust Manifold. Place the heated Oxygen Sensor into the Exhaust Manifold before tightening it to 43 nm (32 ft. Lbs.). Enough torque of 10 nm should be applied to the 3 bolts before the Exhaust Manifold heat shield can be positioned against the Exhaust Manifold. The Exhaust Manifold needs installation of a new gasket with a manifold while using 9 nuts with 23 nm (17 ft. Lbs.) torque settings and engine hanger connection to the cylinder head. The vehicle needs to be raised once again for the front pipe/twc assembly installation which should use a new gasket and be bolted to the Exhaust Manifold before tightening the bolts to 50 nm (37 ft. Lbs.). Fasten the Exhaust Manifold brackets to the engine block and Exhaust Manifold through 1 nut and 2 bolts that require tightening to 54 nm (40 ft. Lbs.) and 50 nm (37 ft. Lbs.), respectively. Attach the upper Exhaust Manifold heat shield above the Exhaust Manifold by fastening 2 nuts and 3 bolts until they reach torque of 10 nm (89 inch lbs.). Connect the (H02S1) electrical connector and the negative Battery Cable while tightening the cable bolt to 15 nm (11 ft. Lbs.).
• Exhaust Manifold
  91176663
  Q: How to replace the exhaust manifold on a 2.0L engine on Chevrolet Tracker?

  A:

  The first step before working on the 2.0l Exhaust Manifold replacement requires waiting for the exhaust system to cool down since it remains hot. Vehicles with pup Catalytic Converter need three bolts and two nuts for Exhaust Manifold heat shield detachment followed by three nuts that separate the front pipe assembly from the Exhaust Manifold along with engine mount bracket and Exhaust Manifold bracket from the engine block. When working on vehicles without pup catalytic converters you should start by removing the 4 bolts and 1 nut from the heat shield followed by raising the vehicle and then using the twc bolts to detach the front pipe assembly. After lowering the vehicle you need to remove the Exhaust Manifold-to-engine block bracket. The technician must remove the Oxygen Sensor from the Exhaust Manifold after disconnecting its electrical connector. Caretakers should first extract the single bolt and eight nuts from the Exhaust Manifold while also taking out the Exhaust Manifold along with its engine lift hook and cylinder head gasket. Install a new Exhaust Manifold Gasket on the cylinder head before attaching the Exhaust Manifold along with the engine lift hook and tightening the 8 nuts and 1 bolt to 50 nm (37 ft. Lbs.). After installing a new gasket between the Exhaust Manifold and lower Exhaust Pipe secure them with three 50 nm (37 ft. Lbs.) torque sealed nuts. The Exhaust Manifold heat shield requires three bolts and two nuts when installed. First use the same procedures to install the gasket and manifold but then lift the vehicle and position the front pipe assembly with a new seal connected through twc bolts tightened to 50 nm (37 ft. Lbs.) afterward lower the vehicle before securing the Exhaust Manifold-to-engine block bracket and the heat shield with 4 bolts and 1 nut. Obtain anti-seize compound for the Oxygen Sensor threads and tighten it to 45 nm (33 ft. Lbs.) before connecting the Oxygen Sensor electrical connector. Finish the inspection process by checking for gas leakages within the exhaust system.