Compression Ignition Addict
Join Date: Aug 2010
Thanked 20 Times in 20 Posts
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sounds like mine. By chance, is the #8 an AD injector or AE? Mines' an AD. Thinking the 99-00 models came with 8-AD. My buddy's being a 01, has a very faint "tap" sound. I say its because its the l.l. injector.
What i found odd with yours though, is that, unless the #5 plug was still making contact, but the noise of the motor didnt chance any, when unplugged? When i unplugged each one of mine, you could tell, it sounded like it wantedto stall, then "catch" itself.
99.5 x-cab 7.3l, 6spd, 161k miles.....