TrailBlazer 2WD V8-5.3L (2007)
Important:
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Properly locate the camshaft sprocket locating pin with the camshaft sprocket alignment hole.
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The sprocket teeth and timing chain must mesh.
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The camshaft and the crankshaft sprocket alignment marks MUST be aligned properly. Locate the camshaft sprocket alignment
mark in the 6 o'clock position.
If necessary, rotate the camshaft or crankshaft sprockets in order to align the timing marks.
6. Install the camshaft sprocket and the timing chain.
7. Install the camshaft sprocket bolts.
Tighten the bolts to 35 N.m (26 lb ft).
