99 Tahoe Fuel pump Wires/PCM Diagram - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bbluma · 07-30-2017, 09:32 PM

Hey Yall, PO transplanted driveline out of a 1999 Tahoe into 66' C10, and well lets just say wiring is sub par lol. So i need some help finding a wiring diagram of the PCM, and if anyone happens to know the colors of the fuel pump wires? Or has a diagram for that? Thanks in advance!

**Captainfab** · 07-30-2017, 11:07 PM

Did you ever get the service number from your PCM that I asked you about in your other thread? You will need that number so that you have some sort of idea of what you are working with. Here is a link to a page to get you started, but that info may not be correct depending on what PCM you have.

http://lt1swap.com/1999_vortec_5.7/index.htm

bbluma · 08-01-2017, 08:40 PM

Hey Captain, got swamped with work and all but finally got a pic of the bottom of the PCM, and added it. Hopefully it helps you and can figure out a wiring diagram for it and all. Lemme know, thanks.

**Captainfab** · 08-01-2017, 11:30 PM

All you have to do is google for the pinouts for a PCM with that service number or a '99-2000 truck. Here is one that poped up but I did not have time to read thru it all.

https://www.hptuners.com/forum/showt...-vortec-trucks

07-30-2017, 09:32 PM	#1
bbluma Registered User Join Date: Mar 2017 Location: Wichita, Kansas Posts: 86	99 Tahoe Fuel pump Wires/PCM Diagram Hey Yall, PO transplanted driveline out of a 1999 Tahoe into 66' C10, and well lets just say wiring is sub par lol. So i need some help finding a wiring diagram of the PCM, and if anyone happens to know the colors of the fuel pump wires? Or has a diagram for that? Thanks in advance!

07-30-2017, 11:07 PM	#2
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: 99 Tahoe Fuel pump Wires/PCM Diagram Did you ever get the service number from your PCM that I asked you about in your other thread? You will need that number so that you have some sort of idea of what you are working with. Here is a link to a page to get you started, but that info may not be correct depending on what PCM you have. http://lt1swap.com/1999_vortec_5.7/index.htm __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

08-01-2017, 08:40 PM	#3
bbluma Registered User Join Date: Mar 2017 Location: Wichita, Kansas Posts: 86	Re: 99 Tahoe Fuel pump Wires/PCM Diagram Hey Captain, got swamped with work and all but finally got a pic of the bottom of the PCM, and added it. Hopefully it helps you and can figure out a wiring diagram for it and all. Lemme know, thanks. Attached Images

08-01-2017, 11:30 PM	#4
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: 99 Tahoe Fuel pump Wires/PCM Diagram All you have to do is google for the pinouts for a PCM with that service number or a '99-2000 truck. Here is one that poped up but I did not have time to read thru it all. https://www.hptuners.com/forum/showt...-vortec-trucks __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE



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