Genuine Pontiac Firebird Ignition Coil

Pontiac Firebird Ignition Coil Parts Questions & Answers

• Ignition Coil Assembly
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  Q: How to check Ignition Coil on Pontiac Firebird?

  A: To check coil-in-cap models, start by removing the distributor cap and using an ohmmeter to measure the resistance across the TACH and BAT terminals at the distributor cap. The resistance should be very low. Then, switch the meter to the high scale and measure the resistance between the TACH terminal and the SECONDARY terminal, as well as the GROUND terminal and the SECONDARY terminal. If both readings are infinite, replace the coil. Next, disconnect the wiring connectors from the distributor cap and remove the spark plug wiring harness retainer clips. Rotate the distributor cap locking latches counterclockwise to remove the cap. Remove the coil cover and separate the coil and leads from the cap. Replace the carbon button and arc seal. For models with separately mounted coils, disconnect the wiring connectors and secondary ignition wire from the coil. Use an ohmmeter to measure the primary and secondary coil resistance, checking for an open circuit or short to ground. Replace the coil if it fails any of the tests. To replace the coil, disconnect the wiring connectors and secondary ignition wire, loosen the coil bracket mounting nuts, and remove the coil. Installation is the reverse of the removal procedure.
• Distributor Ignition Pickup
  10495089
  Q: How do you check the pick-up coil for Pontiac Firebird?

  A: To examine the ignition coil, remove the distributor cap, and rotor, and disconnect its wiring from the ignition module. Test for continuity between coil connector terminals and the distributor body; if found, the coil is shorted and needs replacement. Measure the resistance, it should be between 500 and 1,500 ohms and if out of range, replace the coil. To do so, remove the distributor, disconnect the coil leads, mark the distributor gear for reassembly, and remove the gear. Extract the shaft, remove any shields, and pry out the coil using the C-clip. Reinstall in reverse order.