Chevrolet Equinox Service Manual: Exhaust Manifold Cleaning and Inspection (LAF, LEA, or LUK) Exhaust Exhaust Manifold
Note:
Do not reuse the exhaustmanifold-to-cylinder head gaskets. Uponinstallation of the exhaust manifold, install a NEW gasket. Animproperly installed gasket or leaking exhaust system may effectOn-Board Diagnostics-(OBD) II systemperformance.Remove the oxygen sensor prior to cleaning the manifold. Donot submerge the oxygen sensor in cleaning solvent.Remove the oxygen sensor-(3) from themanifold.Clean the exhaust manifold-(2) in solvent.Warning:Refer toSafety Glasses Warning.
Dry the exhaust manifold with compressed air.Inspect the heat shield-(1) for damage.
Use a straight edge and a feeler gauge and measure theexhaust manifold mounting face-(1) for warpage.
An exhaust manifold face with warpage in excess of0.25-mm(0.0100-in)may cause an exhaust leak andmay effect OBD II system performance. Exhaust manifolds not withinspecifications must be replaced.
Separating Parts
Note:Disassembly of the piston, press fit design piston pin, andconnecting rod may create scoring or damage to the piston pin andpiston pin bore. If the piston, pin, and connecting rod have beendisass ...
Valve Lifter Removal - Left Side
Note:Do not stroke/cycle the stationary hydraulic lash adjusterplunger without oil in the lower pressure chamber.Do not allow the stationary hydraulic lash adjuster to tipover, plunger down, after the ...
Other materials:
Silicon Contamination of Heated Oxygen Sensors Caution Engine Control Engine Control Sensors O2 Sensors
Caution:Contamination of the oxygen sensor can result from the use ofan inappropriate RTV sealant (not oxygen sensor safe) or excessiveengine coolant or oil consumption. Remove the HO2S and visuallyinspect the portion of the sensor exposed to the exhaust stream inorder to check for contamination. If ...