fuel pump relay
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fuel pump relay ground and power
1997 GMC Yukon 5.7 vortec 4X4 This started 10 minutes or so after I left a car wash, it didn't spit or sputter just died on the road. After a fair bit of diag and changing the pump i discovered that pin 87 ( should just be constant power ) is also a ground to the body. I don't know how this is...- greenturdyukon
- Thread
- fuel pump fuel pump relay fuelpump k1500 k1500 gmc wiring suburban tahoe wiring yukon yukon xl
- Replies: 7
- Forum: Engine Performance + Maintenance
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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...- Mike Severance
- Thread
- 1988 fuel fuel pump relay jumper k1500 wire wiring
- Replies: 3
- Forum: Engine Performance + Maintenance
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