robertbartsch

What is the best method of cleaning fuel injectors?


* add a few onces of acetone to the gas tank?
* seafoam?
* add a commercial fuel injector cleaner to the tank?
* Take it to Jiffy-boob?


My car was running like crap and would throw po300 codes and I went through the ignition, searched for vacumme leaks, plugs, wires, cleaned the MAF sensor, ran some acetone in the tank, etc.

Nothing worked until I took the car for a Jiffy-boob fuel injection cleaning.....best $75 bucks I ever spent.... they say this is supposed to be done annually.... really?

sjsingle1

iTrader: (1)

3M makes a hose............and the can of cleaner......sorta like the stuff they use at jiffy lube and charge you a 100$ for......my hose cost about 40 and the cans of cleaner run 25 at NAPA

ls1 1990 VN

As you said, take them to someone who cleans them & get them reflowed as well.

wssix99

iTrader: (5)

Check out this thread. Its the best one I've come across talking about this stuff: https://ls1tech.com/forums/general-m...eafoam-vs.html

The key point in the thread is that the cleaners are all essentially the same. Naptha is the key ingredient. Its powerful stuff, which can be used to cut asphalt.

So... using any cleaner with Naptha in it should do a good job for you. However, the method of delivery makes a world of difference. For example, if you put it in your tank, you'll need to replace the fuel filter afterwards. If you burn it in a high mileage engine, it could clean out "good" gunk, which is keeping the seals from leaking. (For this reason, many techs will not use the stuff proactively and will only employ it for larger problems that need to be addressed.)

robertbartsch

So the 3M product is shot into the injectors through the fuel rail on the intake manifold?

Will the 3M hose fit all cars?

How often should you clean injectors?

sjsingle1

iTrader: (1)

the 3M hose connects to the fitting on the fuel rail...........the tire valve lookin thingy........and the other end connects to the can of cleaner.....pull the fuse for the fuel pump...so no gas is flowing thru the fuel rails.....have someone start the car while you turn the valve on the can of cleaner on.......run til the can is empty......sure beats payin someone 100$ for it.........3M sells diff hoses for diff cars

wssix99

iTrader: (5)

If you want to proatively clean them, just get some standard cleaner w/ Techron off the parts store shelf and add it too your tank.

gmdoctor

iTrader: (3)

hit up the dealer and buy some port cleaner or "cleens". Stuff works fantastic. Can be poured into the tank or through the port if you want a quicker repair.

LS6427

iTrader: (2)

$7.00

Pour a full can of SeaFoam into 1/8 tank of gas....run it close to empty.....done. Not gonna get much better than that. Then do that every 3-4 months for maintenance.

.

justanova

do you by chance have part #s for the hose and/or cleaner

sjsingle1

iTrader: (1)

http://3mcollision.com/3m-universal-...oreInfoDetails

mine does not have the pressure gauge like this 1.......dont know if they have mine available anymore

http://3mcollision.com/products/clea...ner-08955.html

this is the can of cleaner......i bought my hose long ago at NAPA and i buy my cleaner there too

this cleans MUCH better than anything you put in the tank

GMtechmatt

i have cleaned many injection system on ls1 engines using Gm upper engine service works very well i found BG had to be used 2wice to every one bottle of GM mixted with fuel