Operation CHARM
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Pontiac
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1991
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Lemans FWD L4-121 2.0L
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Repair and Diagnosis
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Powertrain Management
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Tune-up and Engine Performance Checks
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Valve Clearance
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Specifications
Valve Clearance: Specifications
This engine is equipped with hydraulic lash adjusters. If valve lash is present, check for worn rocker arm, stuck hydraulic valve lash adjuster plunger or defective valve lash adjuster.