Fuel injector cleaning?

[Caddybill]

I have to remove the fuel injectors on my 3.8l town and country in order to replace the o rings. While i'm at it i figured i will clean them. What the preferred way to clean them while i have them out? Something like this?

 

[BurtEggley]

it all comes down to the pattern they are spraying when you are done. I used to send mine to Witch Hunter Performance in WA but Gordon retired 2 years ago. He recommends Advanced Injector in Wichita Kansas https://advancedinjector.com . I have not used him but he sounds good. $24 an injector. Last injectors I did, someone had some NOS ones for sale still in original boxes on ebay. I forget what voltage I used to be sure each one clicked. Might have used the car itself. They can stick after years of none use. In the car itself, techron (PEA) works well.

 

[OccupantRJ]

Whenever I have mine or my son’s out for some repair reason I hook up a 9 volt dry cell battery to open one and spray some cleaner through it. Sometimes you can see the pattern change a bit doing this. I have an adapter I made to attach the spray can directly to the injector.

 

[BurtEggley]

Whenever I have mine or my son’s out for some repair reason I hook up a 9 volt dry cell battery to open one and spray some cleaner through it. Sometimes you can see the pattern change a bit doing this. I have an adapter I made to attach the spray can directly to the injector.

I've used a 9V battery momentarily on some older ones that are 5V. Use WD40 in them when done so they remain loose.

 

[Cheep]

Acetone from a pressurized cannister and cycle them.

 

[LXCam]

Whenever I have mine or my son’s out for some repair reason I hook up a 9 volt dry cell battery to open one and spray some cleaner through it. Sometimes you can see the pattern change a bit doing this. I have an adapter I made to attach the spray can directly to the injector.

Acetone from a pressurized cannister and cycle them.

Same here with an exception. I’ll set my air regulator to 50 psi and blow them out.

 

[seber]

Can they be submerged in carb cleaner in an ultrasonic? I've never had to do more than a bottle of Lucas in the gas.

 

[Schurkey]

A bottle of this in the gas tank at every oil change.
Buy your gasoline from a Top Tier fuel retailer.
You'll never need to "clean" your injectors.


Direct-injection vehicles will still develop deposits on the intake valves, and no fuel additive is going to help with that. But Throttle-body injection or "Port/sequential" injection will allow the Techron to clean the intake valves, too.

This product was also sold as a private-label "ACDelco" item. It's GM-recommended.

 

[M.Brane]

If you use the 9V battery method only power them for a second at at a time. Holding them open can burn 'em up.