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  1. kevvan

    Fuel Pump will not prime - 1990 5.7 Chevy Sport

    I was not able to solve the issue and took the truck to a trusted garage. In the end they pulled the fuel tank and replaced the fuel pump. The brand new one I installed was defective and that was behind the problem. I asked them if it was installed incorrectly (by me) and they said no, it was...
  2. kevvan

    Fuel Pump will not prime - 1990 5.7 Chevy Sport

    Thanks for this. I am going to try it today after work.
  3. kevvan

    Fuel Pump will not prime - 1990 5.7 Chevy Sport

    This is the diagram I am studying. From what I think I know, the basics are power is supplied to the Fuel pump relay, it opens and the power to run the fuel pump is delivered from the [920 1.0 Pink/BLK] pathway to the oil pressure switch [C135] and the inline fuse [C136]. From the inline-fuse...
  4. kevvan

    Fuel Pump will not prime - 1990 5.7 Chevy Sport

    Response > The guide I am referencing, [1990 Light Truck C/K Models Electrical diagrams and diagnosis manual], shows C105 at the headlights... In the diagram I have, C406 is the plug at the tank: which is inaccessible to me because it is above the tank and would require me to lift the bed to...
  5. kevvan

    Fuel Pump will not prime - 1990 5.7 Chevy Sport

    Replaced the distributor* + ICM today, the Fuel Relay, and the oil sensor (Since I was replacing the distributor and could get to it). I buttoned everything up only to find that it still will not start. I do hear the fuel relay clicking now, which I did not hear before. Went through the...
  6. kevvan

    Fuel Pump will not prime - 1990 5.7 Chevy Sport

    This is the diagram for the fuel relay for my 5.7L. If I take a pin and connect #440 with #920, I bypass the switch and supply power to the fuel pump. I think I have that right. If I am right, if I pin the two, I should hear the pump start in the tank - yes???
  7. kevvan

    Fuel Pump will not prime - 1990 5.7 Chevy Sport

    Sorry, should have said this. I checked that fuse first. It is good, tested fine. Is there some place I could find directions to test the relay?
  8. kevvan

    Fuel Pump will not prime - 1990 5.7 Chevy Sport

    New to these trucks so forgive the lack of understanding... The truck died and I replaced the fuel pump, assuming it was the problem. However when I took out the old one and tested it, it worked when supplied power. I still went ahead with the fuel pump replacement and put everything back...
  9. kevvan

    Fuel Pump Sending Unit too?

    is this what you mean?
  10. kevvan

    Fuel Pump Sending Unit too?

    Finished the job today but... truck would not fire. Not sure it is getting power to the pump which is what I am going to chase from here. The battery was dead so I had to put a battery charger on it and when back up to charge I'll try to troubleshoot it. One thing I am positive off is that...
  11. kevvan

    Fuel Pump Sending Unit too?

    The tank is down and out. Broke the bolt on the front strap and had to build a splice. Dropping the tank was not terrible, but all of the fittings were rusted solid. Getting the hoses off was a pain the a$$. I ended up cutting the end off one of the hoses because it was fused to the metal...
  12. kevvan

    Fuel Pump Sending Unit too?

    Just wanted to say thanks for the guidance. All set to do the job today, wish me luck.
  13. kevvan

    Fuel Pump Sending Unit too?

    I will not question the wisdom of others, especially when they have real-world experience. I am not clear however why it is hard to drop the tank. It looks to me as if you disconnect the filler neck, tedious but not complicated, undo the straps, and lower the tank with support situated on a...
  14. kevvan

    Fuel Pump Sending Unit too?

    Will do, thanks for the guidance. I ordered a Delphi replacement and a new O ring to fit under the cap. Would have preferred to go ACDelco but after reading reviews it seems that people are happy with the Delphi one. Hopefully that was not short sighted. Besides the sending unit/pump and O...
  15. kevvan

    Who's got an original silverado sport?

    It has a small number of updates since that photo. The mirrors are back to the sport style and the front air dam is being swapped back to a proper sport one with the fog lights. I have been working on some updates and fixes to the interior.
  16. kevvan

    Fuel Pump Sending Unit too?

    My fuel pump went south on my 1990 Sport. I am dropping the tank on Thursday. Philosophical questions.... If you were doing this, would you or would you not replace the sending unit along with the pump motor? I see some say the sending unit is not the problem and leave it in there, and...
  17. kevvan

    Who's got an original silverado sport?

    This is my chevy Sport. It is a 1990 with a 5.7. It was originally white, but the first owner painted it Toreador Red. It keeps leaving me alongside the road with this problem or that, and in due time I am going to do a full body-off restoration. It is sitting in my garage awaiting the...
  18. kevvan

    Lowering Kit

    Any thoughts on this kit? https://www.ebay.com/itm/6-Drop-Rear-Axle-Chevy-Frame-C-Notch-Flip-Kit-1988-1998-1500-Truck-Lowering/201990812388?hash=item2f079732e4:g:do0AAOSwlyJZblNf I am new to this and have seen them do this on TV but know little about it. At some point I want to lower my 90...
  19. kevvan

    New guy, just want to see some static drops

    Is the front bumper on this truck tucked or is it an optical illusion? It looks like it has been trimmed and tucked back flush. Whatever the answer, itis one sharp truck.
  20. kevvan

    Sport Body Molding

    Thanks all for the replies. east302, don't think that did not cross my mind. If the interior was red like my Sport it would be on a trailer already.
  21. kevvan

    Sport Body Molding

    Hypothetically if you found a truck like this and wanted to take the molding off because it has the sport red stripes. Could it be done without destroying it? If so, how might one do that and how would you reattach it. Wondering if anyone has done this or considered it and if you would...
  22. kevvan

    Broken Armrest

    Both of the armrests on my truck are broken. Specifically, the clips that screw to the inner door shell have been broken off - see photos. Does anyone know if a replacement 'tab' is available or a way to fix this? I can devise a way on my own but I wondered if since this is likely a universal...
  23. kevvan

    92 sport value

    As stated above, there are a lot of it depends. I've been watching for about a year on Facebook marketplace and eBay for Sport trucks in the mid-Atlantic region. I've seen some really nice trucks and some rust buckets. The rusty high mileage ones seem to range from 500 to 1500. Nicer trucks -...
  24. kevvan

    Slack Driver side door handle

    My 1990 sport has a driver's side inside door latch that will not retract the handle correctly. It feels like the spring is not working or something. I have the door apart and I am going to drill out the rivets and take a look at what is going on. It got to single digits here so I've held off on...
  25. kevvan

    Junkyard ID/Interior Parts

    I have seen the color of a C1500 interior referred to as Garnett Red.
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