2007 Chevrolet Tahoe 4.8 CFACTORY OEM SERVICE PROCEDURE

Ignition Coil 8 Connector End View

Fig 1: Ignition Coil 8 Connector End View
GM1581641Courtesy of GENERAL MOTORS CORP.
Ignition Coil 8 Connector Parts Information

Connector Part Information 
  • OEM: 15439568
  • Service: 88987184
  • Description: 4-Way F GT 150 Series, Sealed (BK)
Terminal Part Information 
  • Terminal/Tray: 15326267/19
  • Core/Insulation Crimp: Pins A, D: E/1
  • Core/Insulation Crimp: Pins B, C: E/4
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)
Ignition Coil 8 Connector Terminal Identification

Pin Wire Color Circuit No. Function
A BK 151 Ground
B BN 2129 Low Reference
C PU 2121 IC 1 Control
D PK 39 Ignition 1 Voltage
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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