Operation CHARM
: Car repair manuals for everyone.
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2002
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TrailBlazer 2WD L6-4.2L VIN S
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Valve Spring
Manuals through 2025 now available!
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Valve Spring
Valve Spring
Valve Springs Load (Closed)
47.5-52.5 lb @ 1.701 inch
Valve Springs Load (Open)
130-142 lb @ 1.260 inch