Fuel Injector Cleaning

[nieuwhzn]

Oooh, I would be very careful with this stuff. Basically it is just undiluted TechRon, i.e. it eats about anything that is not metal. If you use it make sure that you do an oil change afterwards, just to make sure that nothing is left in the engine.
I've had something similar done with my Saab Viggen last winter after problems that indicated a 'hanging' injector solenoid. It definitely cleared up that problem and an oil change was done for safety. After a couple of months the vacuum lines (to the turbo, etc) all of a sudden all started failing. They looked like they had been eaten away by something. No biggie, I was planning to replace all of them with silicone lines anyway, but I'm pretty certain that it was the 1 hour run with this cleaning stuff that accelerated their demise.

[Jager]

Hmmm… This kit connects to the fuel rail and you run your motor on the cleaner for just a couple minutes, it should not run on it for an hour. I question whether this cleaner breaks-down rubber, the hose on this kit is made of rubber and I have had this kit for 10 plus years and have not replaced it.

[nieuwhzn]

Originally Posted by Jager

Hmmm… This kit connects to the fuel rail and you run your motor on the cleaner for just a couple minutes, it should not run on it for an hour. I question whether this cleaner breaks-down rubber, the hose on this kit is made of rubber and I have had this kit for 10 plus years and have not replaced it.

I doubt that running for a couple of minutes will clean much. Maybe the injector nozzles get a bit better, but TechRon in the tank will probably do the same with a lot less hassle.

[Jager]

I leaned about this system about 13 years ago in a performance magazine article. It basically stated that the only way to thoroughly clean fuel injectors was to use a system like this, no gas tank additives come close. A local performance/race shop (one of two listed in the article) was selling the system and the cleaner, so I bought one. Over the years I have used it on my Corvette, Firebird GTA, Mustangs, and now Tahoe with excellent results. The cleaning system seems to be a secret among pros and race shops and the cleaning product is not found at most automotive stores.

I can assure you that cleaning your injectors for a couple of minutes on this stuff (pushing on the accelerator a few times) will do more cleaning than many tanks of gas with any type of injector cleaner/additive... I’ve been there and done that a few times. Using this cleaning system every 50,000 would be good, but unfortunately I tend to wait until I have performance issues. My experience has been that performance/throttle response will gradually decrease over time, unnoticed, and then the idle will start to fluctuate. Hit the injectors with this cleaning system and I get amazing results. Adding an injector cleaner to the tank and changing to premium gas with Techron has little or no noticeable difference in comparison even after running through three tanks.

My Tahoe started idling rough (it has 140,000 miles on it), a few minutes on this cleaning system (first time doing so since I bought the vehicle new) and it idles very smooth now. Push on the accelerator and there is vast improvement in response and acceleration. Since it’s my wife’s daily driver I asked her for some words to post here. She said, “That thing now has get-up and go!”