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2004 sport trac injector cleaning?


New Member
February 24, 2014
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Year, Model & Trim Level
2004 Sport Trac
Is it recommended to clean the injectors on the 4.0 SOHC through the fuel rail?

I cannot find a schrader valve on the fuel rail to connect to. I do find a plastic valve over by the fuse box but don't believe that is the proper valve.

I have a rough idle with no codes. Other than the idle it runs great. 200k miles and just replaced plugs and wires but still have the same idle issue.

The idle is smooth then rough like it is wants to die, then will go back to smooth for a few seconds and repeat.