Re: 89 gmc knocking under load 350 TBI
lol i had the same problem with my 98 GMC 305 vortec... once it started doing it it took 6 days untill it stopped running lol.... i will soon find out what caused it to happen
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1971 C10 Stepper LSX 5.3/4L60E 3.73 12bolt posi. Father Son Project. In Memory of Bruce C. Shorten. Rest easy Dad. Ill take it fryom here.
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