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Jan 23rd, 2013
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Fuel Injector Cleaning #13516992 04/14/20 12:02 PM
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BillS2006 Offline OP
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To do an on the vehicle injector cleaning, the fuel pump must be disabled. On my 2012 Chevy 5.3, there is no fuel pump relay or fuse. How is it disabled?


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Re: Fuel Injector Cleaning [Re: BillS2006] #13517665 04/14/20 06:43 PM
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It has a fuel pump module. There should be a fuel pump control module fuse that you can pull to disable the fuel pump!

Re: Fuel Injector Cleaning [Re: BillS2006] #13517688 04/14/20 06:52 PM
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If you kill the power to the module won't the ECM not have communication and not let the truck start? After giving it a lot of thought, I am going to replace the fuel pump as preventative maintenance. I will clean the injectors when I do that. I'll just leave the fuel pump unplugged at the tank.


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Re: Fuel Injector Cleaning [Re: BillS2006] #13517774 04/14/20 07:44 PM
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The PCM still should communicate... All modules communicate with each other thru a can bus... It shouldn't do anything but kill the fuel pump.. Truck should start..

Re: Fuel Injector Cleaning [Re: BillS2006] #13517808 04/14/20 08:04 PM
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I will give it a try. Thanks!


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Re: Fuel Injector Cleaning [Re: BillS2006] #13519745 04/15/20 11:23 PM
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Looked in both fuse boxes, no fuse marked for fuel pump, or fuel pump module. There is only an empty fuse slot and empty relay socket. Not sure what GM did on this model.


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Re: Fuel Injector Cleaning [Re: BillS2006] #13537645 04/28/20 03:13 PM
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Update.... the cleaning kit I ordered comes with a fitting to connect the fuel pump line to the return line so the pump simply circulate. No need to kill the pump.


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Re: Fuel Injector Cleaning [Re: BillS2006] #13537676 04/28/20 03:43 PM
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Id just dump a can of seafoam in the fuel tank and drive it.

Re: Fuel Injector Cleaning [Re: redchevy] #13545059 05/04/20 08:29 PM
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Originally Posted by redchevy
Id just dump a can of seafoam in the fuel tank and drive it.



This. thumb

Re: Fuel Injector Cleaning [Re: SL1] #13545333 05/04/20 11:25 PM
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Originally Posted by SL1
Originally Posted by redchevy
Id just dump a can of seafoam in the fuel tank and drive it.



This. thumb


X 3


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Re: Fuel Injector Cleaning [Re: V-Bottom] #13545358 05/04/20 11:39 PM
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Originally Posted by V-Bottom
Originally Posted by SL1
Originally Posted by redchevy
Id just dump a can of seafoam in the fuel tank and drive it.



This. thumb


X 3

This may sound crazy but years ago I paid the extra at the pump for the injector cleaner at a Murphy station and my truck ran really great after that, I started doing it once a year. I need to do it again, not sure if it is still available. Almost 200,000 on the truck and only did a water pump and timing belt (at recommended time) and changed the plugs once...besides regular oil changes.


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Re: Fuel Injector Cleaning [Re: redchevy] #13546177 05/05/20 04:45 PM
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Originally Posted by redchevy
Id just dump a can of seafoam in the fuel tank and drive it.




I prefer doing it the best way and not waste my time and money.


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Re: Fuel Injector Cleaning [Re: BillS2006] #13548272 05/07/20 04:03 AM
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Hey by all means have it your way, but it certainly sounds like your wasting more time and more money! thumb

Re: Fuel Injector Cleaning [Re: redchevy] #13548463 05/07/20 12:42 PM
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Originally Posted by redchevy
Hey by all means have it your way, but it certainly sounds like your wasting more time and more money! thumb


LOL Time I got a lot of, money, well I can't take it with me when I die.


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Re: Fuel Injector Cleaning [Re: BillS2006] #13548858 05/07/20 04:51 PM
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You do you, but a can of sea foam for $6-7 and a routine fill up is all you need. I don't have extra time and lots of other things I can blow the $$$ on without being buried with it.

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