GM GMG-643 — Replace element - Every 500 hours.
For the GM GMG-643.
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Procedure
- 1. Remove the element, while using ca
- 2. The element cannot be washed and reused.
- 3. After installation, bleed the fuel system and check for fuel leaks.
Source: manual:GM_KEM_6.43L_Manual.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.