Mercury Direct Injector Testing, Cleaning, and Resealing Service

Restore your Mercury engine’s precision and power with our Direct Injector Testing, Cleaning, and Resealing Service. Ship your injectors to LaCorte Automotive, and we’ll clean, flow-test, and reseal them to factory or better-than-factory performance standards using professional flowbench equipment.

What’s Included:

Comprehensive Testing
Each injector is electronically and hydraulically tested for proper flow rate, spray pattern, leak integrity, and electrical response at multiple pressure points.

Ultrasonic Carbon Removal
We use advanced ultrasonic cleaning and reverse backflushing to remove combustion carbon, varnish, and internal debris from the injector tips and internals.

High-Quality Resealing
Every injector receives brand-new Teflon combustion seals, o-rings, and filters to restore OEM sealing performance and long-term reliability.

Detailed Spec Sheet
A complete before-and-after test report is included with every service, showing flow rates, spray patterns, and post-cleaning balance improvements.

How It Works:

1. Ship Your Injectors to Us
   Follow our provided shipping guide to send your injectors safely to our facility.

2. We Test, Clean, and Reseal
   Our technicians use GDI-specific ultrasonic systems and calibrated flowbench testing to restore precise fuel delivery.

3. We Ship Them Back
   You receive your cleaned, resealed injectors and a full performance report — ready for installation.

Supported Mercury Direct Injection (GDI) Engines

Automotive Applications

• 2.0L / 2.3L EcoBoost GDI (Milan, Fusion, Mariner, Escape)

• 2.5L Duratec GDI (Fusion, Milan)

• 3.0L Duratec GDI (Sable, Taurus, Montego)

• 3.5L Cyclone V6 GDI (Sable, Taurus, Edge, Flex)

Marine Applications

• Verado L4/L6 1.7L–2.6L Supercharged GDI Outboards

• OptiMax 2.5L / 3.0L / 3.2L DFI (Pro XS, Sport XS, Racing)

• SeaPro and FourStroke GDI variants (Mercury Marine / MerCruiser)

Performance & Specialty

• Mercury Racing Verado and OptiMax high-performance injectors

• Port + Direct Injection hybrid Mercury marine builds (tuning applications)

Why Choose LaCorte Automotive?

We specialize in restoring Mercury GDI injectors for both automotive and marine engines. Our service restores precise spray patterns, smooth idle, and peak efficiency, verified through professional flowbench testing for real-world reliability.