OEM 2003 GMC Safari Lash Adjuster

2003 GMC Safari Parts Questions & Experts Answers

• Q: How to replace the Lash Adjusters on 2003 GMC Safari?

  A: The repair starts by removing the lower Intake Manifold and continues with valve rocker arms and valve push rods. The next step involves removing valve lifters from the valve holes to clean away any present varnish with a combination of cleaning solvent and shop towel. Examine valve lifter bore surfaces for severe wear markings or damage. A faulty engine block requires immediate replacement when found during examination. Assess the Camshaft's wear patterns before deciding whether to take it out for complete examination. A complete evaluation of valve lifters and valve Pushrod guide must happen prior to valve installation. The beginning noise from new lifters should be viewed as normal during engine startup. Lightly increasing engine rpms helps increase oil pressure which reduces the noise from this problem. Install valve lifters first then install the valve rocker arms and push rods and replace the lower Intake Manifold last.