Ignition Coil and Iridium Spark Plugs for Buick Envision (2016-2020) 2.0L

Direct-Fit High-Dielectric Ignition Coil and Iridium Spark Plug Kit for 2016-2020 Buick Envision

Primary Function: Restores precise secondary ignition voltage and consistent spark discharge across all combustion cycles to eliminate high-boost misfires and erratic idle in the turbocharged 2.0L powertrain.

The Stock Envision Ignition Breakdown

The direct-injected, turbocharged GM LTG engine generates elevated cylinder pressures and thermal loads within the tight confines of the D2XX engine bay. Over extended heat cycles, factory coil-on-plug boots suffer dielectric breakdown, micro-arcing, and internal winding resistance degradation. Compounded by standard spark plug electrode erosion from high-boost direct injection, these weak links produce intermittent spark blowout under load, hesitation during acceleration, and unburned fuel entering the exhaust stream.

The Engineering Solution

This direct-replacement ignition overhaul kit features four coil-on-plug assemblies engineered with high-conductivity copper primary and secondary windings encased in high-dielectric epoxy resin. Coupled with direct-fit OEM-spec blade terminals and thermal-resistant boots, the assemblies resist insulation breakdown up to severe operational temperatures. The included fine-wire iridium spark plugs feature a high-melting-point center electrode designed to maintain consistent gap spacing, lower voltage requirements, and ensure reliable flame-front propagation under peak boost.

Technical Specifications

Compatibility

• 2016 Buick Envision Premium (2.0L L4 Turbo)
• 2017 Buick Envision Premium, Premium II (2.0L L4 Turbo)
• 2018 Buick Envision Premium, Premium II (2.0L L4 Turbo)
• 2019 Buick Envision Premium, Premium II (2.0L L4 Turbo)
• 2020 Buick Envision Premium, Premium II (2.0L L4 Turbo)

The Buick Reliability Standard

Engineered to meet factory duty cycles, this ignition package delivers precise timing synchronization, preventing CEL illumination and protecting sensitive downstream catalytic converters while preserving smooth, quiet cabin dynamics.