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07-27-2017, 08:25 PM | #1 |
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Join Date: May 2011
Location: Texas
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5.7 tbi
Bought a '91 suburban without engine/transmission or wiring harness for $200 body is excellent...I have a '90 suburban cracked frame going to switch everything from the '90 to the '91
I haven't actually driven it since not really sure early 2016...fuel pump I thought went out but a friend hooked the relay to the battery and it started and drove fine but obviously would drain the battery. I did replace the relay and oil pressure switch but without it being hooked to the battery with the hot wire it won't start. I'm a total novice at wiring, any help on what is out of place would be greatly appreciated! '90 gmc suburban 5.7 tbi/700r4 miles on engine 45k Having issues uploading photos
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Rest In Peace:Mikhail {Mickey Rooney} Alpha 2/5/13 Omega 7/22/14 10:28AM I love you tremendously and outragiously Superpuppi Thai Ridgeback...The most intelligent dog known to me. Don't mess with my truck, my momma or my money...not necessarily in that order. ©Stand for something or fall for anything. [LIST][*]'98 Bourbon St. Brawl ©2010
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07-27-2017, 08:28 PM | #2 |
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Re: 5.7 tbi
Photos
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Rest In Peace:Mikhail {Mickey Rooney} Alpha 2/5/13 Omega 7/22/14 10:28AM I love you tremendously and outragiously Superpuppi Thai Ridgeback...The most intelligent dog known to me. Don't mess with my truck, my momma or my money...not necessarily in that order. ©Stand for something or fall for anything. [LIST][*]'98 Bourbon St. Brawl ©2010
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07-27-2017, 08:38 PM | #3 |
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Re: 5.7 tbi
More photos
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Rest In Peace:Mikhail {Mickey Rooney} Alpha 2/5/13 Omega 7/22/14 10:28AM I love you tremendously and outragiously Superpuppi Thai Ridgeback...The most intelligent dog known to me. Don't mess with my truck, my momma or my money...not necessarily in that order. ©Stand for something or fall for anything. [LIST][*]'98 Bourbon St. Brawl ©2010
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07-28-2017, 12:24 PM | #4 |
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Location: Smethport, PA
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Re: 5.7 tbi
A relay is essentially a switch. If you can only get it to run by applying direct power to the "switched" terminal then whatever is telling the switch to open is where I would look. There are 4 wires on a relay... 12v power in from battery, 12v out to fuel pump, ground, and switch wire. Figure out which wire is your switch and trace it back and see if a problem shows itself. I am not familiar with the wiring for the TBI engine to give you any better advice.
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07-31-2017, 06:52 PM | #5 |
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Location: Texas
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Re: 5.7 tbi
Now, I know why the wires were wrapped in duct tape, electrical and loom...to hide this mess!
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Rest In Peace:Mikhail {Mickey Rooney} Alpha 2/5/13 Omega 7/22/14 10:28AM I love you tremendously and outragiously Superpuppi Thai Ridgeback...The most intelligent dog known to me. Don't mess with my truck, my momma or my money...not necessarily in that order. ©Stand for something or fall for anything. [LIST][*]'98 Bourbon St. Brawl ©2010
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08-03-2017, 09:39 PM | #6 |
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Location: Texas
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Re: 5.7 tbi
Fixed the engine harness today, found this when tracing the wires to the tank. Could this cause it to not start? Thanks!
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Rest In Peace:Mikhail {Mickey Rooney} Alpha 2/5/13 Omega 7/22/14 10:28AM I love you tremendously and outragiously Superpuppi Thai Ridgeback...The most intelligent dog known to me. Don't mess with my truck, my momma or my money...not necessarily in that order. ©Stand for something or fall for anything. [LIST][*]'98 Bourbon St. Brawl ©2010
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