GM Port Injector Testing, Cleaning, and Resealing Service

Improve your GM engine’s performance, idle stability, and fuel efficiency with our Port Injector Testing, Cleaning, and Resealing Service. Ship your injectors to LaCorte Automotive, and we’ll restore them to factory-level precision using professional flowbench testing and ultrasonic cleaning.

What’s Included:

Comprehensive Testing
Each injector is tested for electrical function, spray pattern, and flow rate accuracy. Any irregularities are identified before cleaning to ensure precise diagnostics.

Professional Ultrasonic Cleaning
We use multi-stage ultrasonic cleaning and backflushing to remove carbon buildup, varnish, and fuel deposits, restoring atomization and flow consistency.

High-Quality Resealing
Each injector is resealed with new OEM-grade o-rings, seals, and microfilters for reliable operation and leak-free performance.

Detailed Spec Sheet
A full before-and-after test report is included, documenting spray pattern, flow rate, and performance improvements for each injector.

How It Works:

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

2. We Test, Clean, and Reseal
   Our technicians restore your injectors to OEM flow specs using advanced flowbench calibration.

3. We Ship Them Back
   Your cleaned and resealed injectors, along with a detailed test report, are shipped back ready to install.

Supported GM Engines with Port Fuel Injection (MPI)

4-Cylinder Engines

• 2.2L / 2.4L Ecotec MPI (Cobalt, Malibu, HHR, Equinox)

• 2.5L LE5 / LE9 MPI (Malibu, G5, G6, HHR, Solstice)

• 2.0L LSJ / LNF (Cobalt SS, Ion Redline – port-injected versions)

6-Cylinder Engines

• 3.1L / 3.4L / 3.5L / 3.8L V6 (3100, 3400, 3800 Series II/III)

• 3.6L LY7 / LLT MPI (CTS, Impala, Camaro, Acadia, Traverse)

8-Cylinder Engines

• 4.8L / 5.3L / 6.0L / 6.2L LS / LQ4 / LQ9 MPI (Silverado, Sierra, Tahoe, Suburban, Camaro, Corvette)

• 7.0L LS7 MPI (Corvette Z06, performance builds)

Performance & Specialty

• LSX Crate Engines (LS1–LS7 port-injected setups)

• Marine and aftermarket LS-based engines

• Port-injected performance conversions and tuning builds

Why Choose LaCorte Automotive?

Our GM port injector restoration process ensures OEM-level precision and consistency. Every injector is flow-matched, cleaned, and balanced — restoring smooth idle, optimal power delivery, and fuel efficiency.