How to find the right Automotive Replacement Distributor Modulator Sensors AI guide

Written by an AI model from its trained knowledge.

What the AI looks for in Automotive Replacement Distributor Modulator Sensors

Distributor type match
Match the exact distributor family (for example GM HEI, Ford TFI, Chrysler electronic) and the module's terminal count Modules and pickups look similar across versions but use different pin counts and timing logic.
Heat transfer
Apply dielectric heat-sink grease under distributor-mounted ignition modules Modules like HEI units fail early without a proper thermal path.
Pickup coil air gap
Set the reluctor-to-pickup air gap to the factory specification where adjustable Incorrect gap causes weak or erratic spark.
Test before replacing
Test the pickup coil resistance and the module with a module tester or known-good swap Heat-related intermittent failures are easily misdiagnosed.

Brands that matter

  • Standard Motor Products: Deep catalog for older ignition modules and pickups.
  • ACDelco: OE choice for GM HEI-era parts.
  • Motorcraft: OE choice for Ford TFI-era parts.
  • Delphi: OE heritage on many GM ignition components.
  • PerTronix: Known for points-to-electronic ignition conversions on classic distributors.

What to avoid

  • Unbranded HEI and TFI modules with no traceable maker
  • Installing a module without heat-sink grease
  • Mixing pickup and module from different distributor generations

Decided by claude-opus-5-5 (opus-5-5_g1), knowledge as of 2026-06, generated October 29, 2026. Written by an AI model from its trained knowledge, without web search. How picks are made.

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