Suzuki XL7 2007 Service Manual page 975

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Table of Contents

15. Remove the engine block heater, if equipped.

Reference: "Exhaust Manifold Cleaning and Inspection -

Right Side: ".

Exhaust Manifold Cleaning and Inspection -

Reference: "Exhaust Manifold Removal - Left Side: ".

Cleaning Procedure

1. Clean the exhaust manifold in solvent.

Refer to "Safety Glasses Caution: ".

2. Dry the exhaust manifold with compressed air.

Inspection Procedure

1. Inspect the left exhaust manifold for the following:

– Damage or excessive corrosion to the exhaust

manifold exterior (1)

– Damage to the exhaust manifold mounting holes

– Damage to the threaded holes (3) for the heat

– Damage to the exhaust manifold flange bolt holes

– Damage to the heated oxygen sensor (HO2S)

hole threads (5)

2. Inspect the left exhaust manifold for the following:

– Damage to the gasket sealing surfaces (1)

– Damage or restrictions within the exhaust

passages (2)

3. Repair or replace the left exhaust manifold and/or

components as necessary.

4. Measure the alignment or surface flatness of the

exhaust manifold flanges, using a straight edge and

a feeler gage. Exhaust manifold surface flatness

must not exceed 0.254 mm (0.010 in).

5. If the surface flatness is not within specifications, the

exhaust manifold is warped and must be replaced.

Reference: "Exhaust Manifold Installation - Left Side: ".

Exhaust System:

Troubleshooting