2005 Ford F150 Injectors

2005 FORD F-150
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PETE2
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Engine Performance problem
2005 Ford F150 V8 Two Wheel Drive Automatic 164K miles

How do I tell if an injector is working. I have replaced all plugs. I am still getting a failure code on 5 & 7
Dec 23, 2008 at 4:03 PM
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BLACKOP555
  • ✓ASE Certified Mechanic
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the only real way to see if its getting enough fuel from the injector is to use a exhaust gas analyzer and a spark kill hook up that way you can measure the amounts of raw fuel and compare with other ones to see if cylinders 5 and 7 are putting out too little, or no at all.

other tets include listen to the injectors with a probe. you should hear them clicking if they are working.

if not check for injector pulse at them with a noid light.
Dec 24, 2008 at 11:06 AM
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