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Re: No power to the fuel pump on a 1990 K5 blazer need a...
CHECK FUSE + RELAY TO FUEL PUMP.IF THEY CHECK OUT GOOD.YOU HAVE PCM PROBLEMS. MAKE SURE PCM FUSE IS GOOD.YOU CAN BUY A HAYNES REPAIR MANUAL.IT HAS ALL OF YOUR ELECTRICAL DIAGRAMS.
I MEANT TO TELL YOU.YOU CAN GO TO ANY AUTO PARTS STORES OR PLACES AND BUY THE HAYNES MANUAL. I MEANT TO TELL YOU.YOU CAN GO TO ANY AUTO PARTS STORES OR PLACES AND BUY THE HAYNES MANUAL.
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Power should goto the gauge, second wire from the gauge goes to the sender unit on the tank. If there's any other terminals on the gauge or the tank they will be grounds
The fuel pump assembly consists of fuel pump relay,fuel sensor,the fuel pump controlling fuse,its ECM B fuse.
The fuel pump and oil pressure switch.
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For its wiring diagram, click the link below and refer the diagram:---
http://technoanswers.blogspot.com/2011/10/fuel-pump-wiring-diagram-for-1998-chevy.html
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This should help.Thanks.Helpmech.
Grey is the power to the fuel pump.
Purple is the power to the fuel level sensor.
One black wire should go to the frame (fuel pump ground).
The other black wire should go to a connector and back to the fuel guage.
if the horn press in in the middle of wheel then their is a carbon brush under the steering wheel ,then wire runs into loom from around the steering lock area
Here's a freebie: go to 'autozone.com enter your car info (year, make, model, engine) click on repair manual, then chassis electrical, then to the far right of screen and down, wiring diagrams. Let me know if u have an trouble locating it.
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