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ACDelco D1977A - Ignition Coil Interface Module

GM Original Equipment

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D1977A

An ACDelco GM Original Equipment Ignition Control Module is a GM-recommended replacement for your vehicle’s original component, and undergoes more stringent testing than aftermarket products. It increases voltage in order for the spark plugs to ignite the air/fuel mixture as the starting and charging system starts the engine, maintains the battery's charge, and provides power to the electrical accessories while the engine is running. An ACDelco GM OE Ignition Control Module features electronically welded lead connections to help reduce heat stress, failure, or cold joints. It has been laser trimmed to provide precise values and reduce deterioration and damage. This ignition control module includes a copper slug heat sink to help dissipate heat and create a more stable environment and it also features a large bus bar for added support and conductivity to address the installation and operating forces that stress terminal tabs. This original equipment ignition control module has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Availability: Will be special ordered for you.
Pricing: $331.28
Qty:

Description

Ignition Coil Interface Module

Get the GM quality you know and trust with ACDelco GM Original Equipment Ignition System and Switch products. Stay with the brand of parts your General Motors vehicle came with and get peace of mind that the fit, form, and function is up to the high standards and specifications of General Motors. ACDelco GM Original Equipment Ignition System and Switch products are engineered for all models of GM vehicles on the road today.

Warranty: 24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details.

Features & Benefits:

  • Feature electronically welded lead connections to reduce heat stress failure or cold joints
  • Laser trimmed to provide precise values and reduce deterioration and damage
  • Increase voltage in order for the spark plugs to ignite the air/fuel mixture
  • Include a copper slug heat sink to help dissipate heat and create a more stable environment
  • Equipped with a large bus bar for added support and conductivity to address the installation and operating forces that stress terminal tabs
  • GM-recommended replacement part for your GM vehicle's original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function

FAQ

Q: Is there a problem when my 'Service Engine Soon' light appears?
A: When your 'Service Engine Soon' light illuminates, that is an indication that there is a potential issue with the drivability, electronics, or emissions of your engine.

Q: While investigating what triggered the 'Service Engine Soon' light, do you recommend any additional services?
A: Preventative maintenance should be referenced in your owner's manual, and, while repairing or having your 'Service Engine Soon' light repaired, if your vehicle is due for maintenance, yes. As described in your owner's manual, this maintenance will help prevent future issues.

Q: If I don't investigate the problem, will the light turn off by itself?
A: Possibly. Sometimes, the triggering device will reset itself thus turning off the 'Service Engine Soon' light until that device/sensor is tested by the vehicles on board computer again. If it fails the test again when tested, the 'Service Engine Soon' light will illuminate once again. Some devices/sensors when tested and failed will illuminate the 'Service Engine Soon' and it will not go out until correct service work is performed.

Q: If I ignore the light, will there be consequences?
A: General Motors has designed the vehicle to inform its driver if there is an issue with certain devices/sensors that effect the drivability/emissions. If this is ignored, there is a possibility that the drivability will suffer, fuel economy will be decreased, or the emissions being emitted will be increased. Do not ignore the 'Service Engine Soon' light.

Q: Is it possible for my vehicle to pass an emissions test if the 'Service Engine Soon' light is on?
A: No. When state and local officials perform certified emission tests, one of the first steps in the process is to inspect for a 'Service Engine Soon'. If it is on, it will automatically fail the test.

Q: Does the 'Service Engine Soon' light tell me when my vehicle needs a tune-up?
A: No. The 'Service Engine Soon' is related to engine emissions and drivability conditions. Please refer to your owner's manual maintenance schedule for information pertaining to tune up time intervals.

Maintenance & Troubleshooting

Signs of Wear & Troubleshooting

  • Due to an internal short or opening, a cracked case, a loose or disconnected power/signal source, loose or disconnected high voltage wires, these problems may occur:
    • Engine will not start or run
    • Reduced Power
    • Excessive tailpipe emissions
    • Check Engine Light is on
    • Engine misfire
    • Reduced fuel economy

Good Maintenance Practices

  • Having your service technician regularly inspect your ignition system can help you stay away from conditions that may result in poor performance or reduced fuel economy.

California Proposition 65

California Prop 65WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov

Details

  • D1977A
  • D1977A
  • 707773906767
  • ACDelco
  • Will be special ordered for you.
  • New

Categories

Shipping Information

  • Item Requires Shipping
  • 0.8 lbs.
  • W4.2000” x H2.2000” x L9.2000”

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California Residents: Prop 65

WARNING: Cancer and Reproductive Harm -

www.p65warnings.ca.gov