02' 4.8L z71 w/ high milage (but in good running condition) with new coil packs, plugs and fuel pump is misfiring. "random multiple misfires". Need advice on what to do. Injectors?
How can I diagnose and fix my issue myself? As i am no stranger to wrenching on my
truck... With 180k miles wouldnt be suprised if i need to do some work on my injectors.
Where should I start? Anyone know the ideal voltage I should be reading on my injectors?
you didn't mention plug wires. a good injector cleaner like sea foam is good every now and then to keep fuel system clean. make sure connections such as the crank snsor are tight. random misfires can be a real pain to diagnose sometimes.
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