87 GMC Sierra R3500 7.4L TBI vacuum diagram - The 1947 - Present Chevrolet & GMC Truck Message Board Network

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87 GMC Sierra R3500 7.4L TBI vacuum diagram

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10-14-2019, 02:08 AM	#1
Captain J Registered User Join Date: Nov 2017 Location: H, Q Posts: 180	87 GMC Sierra R3500 7.4L TBI vacuum diagram Hello I need your help I’m looking for the full TBI vacuum diagram for a 1987 GMC Sierra R3500 with 7.4L (454) engine & auto trans. The workshop miss up some vacuum hoses, and I need to put them back correctly Thanks __________________ 1972 GMC Sierra C2500, V8-350 1986 GMC Sierra C2500, V8-454 1986 GMC Sierra C2500, V8-LS1 1986 GMC Sierra K2500, V8-350 1987 GMC Sierra R3500, V8-454 1997 GMC Sierra K2500, V8-454

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