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Old 10-23-2019, 01:52 PM   #25
DieselSJ
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Join Date: Jun 2016
Location: Phoenix, AZ
Posts: 574
Re: 87 GMC Sierra R3500 7.4L TBI vacuum diagram

Quote:
Originally Posted by Captain J View Post
Is this the speedo sensor.
That looks like the plug. The sensor itself is built into the speedometer. That harness plug in next to the speedometer cable.
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87 R30 CC Dually, TBI 454, NV4500, zero rust barn find
87 Jeep Grand Wagoneer, 6.5 turbodiesel, 700R4
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