cleaning fuel injectors?

[BerniniCaCO3]

Hi!

Bought my car a few months ago with little idea of its maintenance history, so for fun, learning, and being a responsible car owner, I've been doing all the regular maintenance that I can think of so that I personally know when it was last taken care of.

After a friend ran into poor fuel economy with a bad O2 sensor and was advised to also clean out his fuel injectors, I figure, why not do mine as well?

Now, it was pointed out to me that there's a capped valve that leads into the fuel rails, and I can pump a fuel injector cleaner into there and idle the engine for a few minutes?
Less effectively, I can add the same cleaner to the gas...

Or finally, courtesy of a site gadget pointed out to me, just remove and soak all the injectors?

http://fordfuelinjection.com/?p=82

What do you advise? If the injectors come out easily without making a mess, that looks like the most effective cleaning possible, and I prefer the idea of cleaning them out of the car, instead of idling the engine with something other than gasoline trying to burn in it.
Is it as easy a job as it looks?

[gadget73]

to really get them clean, your best bet is to send them out to a shop that rebuilds injectors and flow tests them to ensure proper spray pattern and balanced flow.

[86VickyLX]

Hi!

Bought my car a few months ago with little idea of its maintenance history, so for fun, learning, and being a responsible car owner, I've been doing all the regular maintenance that I can think of so that I personally know when it was last taken care of.

After a friend ran into poor fuel economy with a bad O2 sensor and was advised to also clean out his fuel injectors, I figure, why not do mine as well?

Now, it was pointed out to me that there's a capped valve that leads into the fuel rails, and I can pump a fuel injector cleaner into there and idle the engine for a few minutes?
Less effectively, I can add the same cleaner to the gas...

Or finally, courtesy of a site gadget pointed out to me, just remove and soak all the injectors?

http://fordfuelinjection.com/?p=82

What do you advise? If the injectors come out easily without making a mess, that looks like the most effective cleaning possible, and I prefer the idea of cleaning them out of the car, instead of idling the engine with something other than gasoline trying to burn in it.
Is it as easy a job as it looks?

If you take them out, lemme make a suggestion, get new o rings. And make sure the little hats aren't broken off of the injectors after you pull them from the manifold. If they're broken, you're gonna need new ones.

[gadget73]

the hats are available in an injector rebuild kit, available for not a bunch of money. Each kit comes with 2 O rings, the pintle cap, the plastic spacer ring, and maybe the itty bitty brass screen in the top of the injector.

[Southern_Pride]

I've had super good luck with injector cleaner. I swear by mercury/mercruiser quickleen. Yes you have a to buy at a boat dealer and dump the whole bottle in. Like 13 bux a bottle though. I've have seen it do amazing things. And it is way easier than pulling injectors.

[famcrown]

is this reccomended... for a 90 CV 5.0

where would you dump it in..-- into the fuel tank??? empty or full


__________

[sly]

full tank... dump it in before filling up to get it mixed in good.

[Southern_Pride]

Recommended on a full tank. My 91 had them so dirty it would miss at idle. I dumped it in on an empty tank and drove a few miles then filled it. It does go in the fuel tank. The bottle says it treats 72 gallons but I figure it a little extra won't hurt and it hasnt yet.