OEM GMC Savana 2500 Distributor

GMC Savana 2500 Distributor Parts Questions & Experts Answers

• Distributor Assembly
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  Q: How to service and repair the distributor on GMC Savana 2500?

  A: The distributor repair process needs the removal of the engine cover as its first step. Normal wear shows as cap discoloration combined with white deposits nearby the terminals together with rotor cap yellowing coupled with darkening from carbon accumulation under the rotor segment. Driveability issues will determine the need for replacement. Look for cracks and small holes along with carbon tracks between the terminal traces on the cap. Use the DMM lead connected to the cap terminal to inspect all other terminals and the center carbon ball until testing all secondary terminals. Move the DMM base lead between each terminal while performing these tests. Check and replace the ignition cap when you find resistance readings other than infinity. Terminal inspections should take place for excessive corrosion leading to terminal cleaning before cap replacement if corrosion reaches high levels but normal buildup is expected. The rotor segment requires replacement if significant looseness is detected. Examine the housing for signs of cracks while testing shaft-to-bushing looseness with the shaft inserted into its place before installing a new housing assembly if the shaft shows noticeable movement. Finally, reinstall the engine cover.