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Dan
Dan, Technician
Category: GM
Satisfied Customers: 23590
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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Where is tach signal wire on 2002 GMC 6500 GAs 8.1

Customer Question

Where is tach signal wire on 2002 GMC 6500 GAs 8.1
Submitted: 1 year ago.
Category: GM
Expert:  Dan replied 1 year ago.

Hello, my name is***** does not have a tach wire, you will need to splice into one of the coil signal wires to tach signal. Let me know if you have more questions or if there is anything else I can do to help. Thanks.

Customer: replied 1 year ago.
Please explain and or give me a diagram
Expert:  Dan replied 1 year ago.

Control wire for cylinder 1 coil is dark pink, red/white for 2, light blue for 3, just use whatever coil is easiest to access. Each spark plug has a coil directly on top of it. Let me know how it goes or if you have more questions, thanks.