Engine won't start

1997 CHEVROLET SUBURBAN
174,000 MILES • V8 • 4WD • AUTOMATIC
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GMORONI36
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I have checked the relays and the fuses already Ive tried cycling the ignition as well.
Dec 18, 2019 at 10:08 AM (Merged)
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HMAC300
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this may need a new pump and harness which some of these years had bad harness abut a foot of it and they switched to a different connector. check the lt grn wire going back. it may be your fule pump balance module bad so have a pro scan it. the relay for fuel pump is on the balance module on frame rail near transmission crossmember.
Dec 18, 2019 at 10:08 AM (Merged)
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GMORONI36
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Ok so at the end of the harness where the sending unit connects I tested the 3 wire connect and only one wire lit up, so I put it all back together figuring it was the wire harness and will need a garage. I fiddled with the fuses again thinking maybe I missed one but didn't. So I primed the key just to see and I the pump is turning on now, but still no gas to engine. I un did the fuel filter rear line primed the ignition and no fuel reaching it. Its a brand new pump. So the only thing I can think of is its clogged. any other ideas or suggestions. Could it be the anti-theft and collision sensor stopping it...if it has one?? And thank you for your help!!!!
Dec 18, 2019 at 10:08 AM (Merged)
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HMAC300
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if it's anti theft try another key if you have one. maybe the diode screwed up. a new key wont work because it has to be programmed by either a scanner or a good key. I tmay be the fuel pump balance module like I said in last reply
Dec 18, 2019 at 10:08 AM (Merged)