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  1. M

    1988 GMC K1500 Fuel Pump Relay Wiring -- Need Urgent Help

    So, I got this 1988 GMC Sierra SLX a year and a half ago, the original engine's oil pump got clogged up with some kind of silver flakes, radiator exploded, dropped a new engine in it, in the process of getting it dialed in and timed, a buddy advanced the timing way too far after I switched the...
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