Sea Foam Official Video: How to clean a fuel injection gasoline intake with Sea Foam Spray



Use Sea Foam Spray to safely and effectively clean residues and deposits from intake and chamber areas where fuel tank additives cannot reach!

  • Sea Foam Spray delivers a high concentration of petroleum cleaning solvency to throttle bodies, intake runners, intake valves, pistons and chamber areas.
  • Click here for printable instructions.


Hot Soak Instructions for Gasoline Injection Intakes:

  1. Add a cleaning dosage of Sea Foam Motor Treatment to the fuel tank
  2. Be ready with screwdriver, Sea Foam Spray and Cleaning Tube
  3. Start and warm engine to operating temp, then turn off accessories and shut off engine
  4. Locate the hose clamp that attaches the air intake boot over the throttle body, then loosen clamp and pull the intake boot from the throttle body
  5. Place the Hook Guide with tube on throttle body between sealed air intake boot and throttle plate. With tube nozzle directed at throttle plate, position nozzle end ¼” in front of the throttle plate at a location where the throttle plate opens away from nozzle. ~Always apply spray downstream from mass air flow sensor.~
  6. Re-fit the intake boot over the Hook Guide and throttle body
  7. With vehicle parked and braked safely, use a helper to start and hold the engine at 1000 RPM over factory idle spec for the duration of the spray treatment
  8. With tube attached to can, spray continuous until contents are empty (approx 4 to 5 minutes)
  9. When can is empty, instruct helper to shut off engine, then allow the engine to hot soak for 5 to 15 minutes
  10. While waiting, remove air intake boot to recover Cleaning Tube and Guide, then re-fit boot over throttle body and tighten hose clamp
  11. After hot soak period, start vehicle and road test for at least 5 minutes. Apply aggressive acceleration when possible and safe.


Using Sea Foam Spray is easy as it looks! Treating your gasoline engine intakes one or two times a year with Sea Foam Spray will help restore power and acceleration.  Sea Foam Spray also works to help overcome rough idles, hesitation, stalls, pings and flat spots!