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Every once in a while I get coupons and ads in mail for getting fuel injector cleaning done at a local chain kinda of auto shop. Does this have any benefits over buying a bottle of fuel system cleaner?
 

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I do believe they can get them cleaner than fuel injector cleaners can, but i have also heard stories of people running Chemtool b12 directly through the fuel rail/injectors with the fuel supply cut off and it does amazing things.

But i am not familiar with what kind of pressurized pump you would need to run b12 through the injectors.
 

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Personally I'm one behind new blueprinted injectors. Those screens get clogged up and you cant really clean them up that well. If you can get some new injectors I think this would be your best bet.
 

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The Fuel Injector Flush that is performed with the fuel rail valve works pretty well. Ford has a special chemical cleaner that you mix with gas in a container that has to be pressurized with compressed air.
After you first have it done your MPG's will drop so it's a good idea to drive maybe 50-100 miles then either reset the PCM or D/C the battery so your PCM will relearn the fuel adaptives.
It made a pretty nice difference in my car.
 

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There's an engine shop here that cleans them for $25 each. It's a chemical bath with supersonic excitation or something, then they flow test them. I'm sure it works great, but for $200 (V*8) I would be tempted to just spring for new injectors...
 

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If I suspect clogged / dirty injectors, I pull them and send them out to get professionally ultrasonically cleaned / flowed, screen buckets replaced, etc. I have used Cruzin Performance several times and have been very happy with their services, and their prices are well under $25 per injector.
 
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