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  1. S

    Big 3 power wire

    Hey all, Planning on doing the big 3 upgrade but am confused by the various ways it has been done. If I understand correctly, the big 3 adds 2 ground wires and 1 positive wire to the system. The ground wires seem straight forward - run a waiter from the battery to alternator bracket, then run...
  2. S

    03 z71 myster parasitic draw

    Only after market thing was a viper alarm that I no longer use. I have removed that and the draw persists.
  3. S

    03 z71 myster parasitic draw

    The battery is old but still serviceable. When I do the tests I have it on a 1a trickle charge to keep it topped up. Well that is the problem right...something is draining .6 amps constantly. I am pretty sure that it is not to do with the starter because when I put the amp clamp on the wire...
  4. S

    03 z71 myster parasitic draw

    Vehicle is drawing power when off. I’ve tried to use voltage drop method to find circuit drawing power but with no luck. I then started yanking fuses and waiting for the amps to drop but again no luck. I removed every fuse/relay in the vehicle and it is still drawing amps when off. I am...
  5. S

    03 z71 myster parasitic draw

    Hey all, so I am dealing with a parasitic draw that is killing the batter in under 2 days, but I cannot track it down! here is what I have tried: 1- verify draw by removing battery ground and running multimeter from ground wire to battery. Was not getting any reading but every time I connected...
  6. S

    Fuel pump check valve

    Hey all, So I haven’t. He led regulator since I replaced the pump and there was no issue with it. I don’t have a fuel pressure gauge with me atm but it seems to lose pressure quickly. Like, I can park for 10 mins and if I try to start without going KOEO to let pump prime it will crank but not...
  7. S

    Fuel pump check valve

    Hey all, 03 Z71 flex fuel - just a beater truck I am trying to keep going as long as possible! Changed fuel pump a few months back with the correct Carter pump for Flex engine. I also changed the filter and the lines that go from the filter to the pump. Since I changed the pump truck has been...
  8. S

    Passenger rear door won’t unlock

    Hey all, 03 Z71 Tahoe rear passenger side door will not unlock. When you hit the unlock button the actuator makes a noise but it does not unlock. If, however, I push the unlock button and hold it down the door will usually open. Any ideas what on what is causing this?
  9. S

    Fuel filter feed line

    Ok, lines are in truck is running. I ended up bending the metal tube for the filter and cutting it about 2” long and connected it to the nylon line. Was kind of a pain getting the compression fitting tigh bc there was no room. Also, for some reason it took me an hour to get the fuel pump...
  10. S

    Fuel filter feed line

    Ok so I got the filter quick connect out and put the new filter in place and connected the outlet side. I cut the quick connector off of the fuel feed line from the pump at the front of the tank and used a nylon to nylon coupler to join the new nylon line. I then tucked the nylon line over the...
  11. S

    Fuel filter feed line

    Auto correct - fuel filter
  12. S

    Fuel filter feed line

    I looked at Nickel Copper but the problem I found was that the pre flared lines are flared for brake applications not the gym filter - the flare for the gym filter has a rubber seal on the flare. Only the Dorman steel had that.
  13. S

    Fuel filter feed line

    Actually the line on the fron side of the filter is quite clean. The challenge is that there is not much room to operate up in there.
  14. S

    Fuel filter feed line

    It is a little hard to get because of space and because the disconnected line flips around. I am going to use a pair of locking pliers or something to hold the line still that should allow me to get in there with the disconnect tool. I will try pushing in on the tube as I go. The problem is i...
  15. S

    Fuel filter feed line

    The tank is already down as I swapped out the fuel pump. The problem I am having is the line that goes from the front of the gas tank to the filter snapped when I was removing the filter. The entire steel piece from the filter back was rotted so there is nothing to tie the nylon tube into. So I...
  16. S

    Fuel filter feed line

    I managed to get 10 feet of 3/8 nylon hose from Napa. I also got Dorman 800-157 fuel line repair which is 30” of steel tube with the filter flare fitting on one end. As of now I cut the vinyl supply line from the pump and joined it to the vinyl line I bough with a vinyl press on connector. I...
  17. S

    Fuel filter feed line

    Ok, so I've run into a problem. I cannot get my hands on any 3/8" nylon fuel line. I am going to have to go steel. So my plan is this: I will cut the connector off of the fuel line at the front of the tank. I will run a steel line from the filter to the front of the tank and connect the plastic...
  18. S

    Fuel filter feed line

    Well I need some way to connect the nylon hose to the filter. Is there a fitting for vinyl tubing so that I can connect it directly to the filter? Filter has a flare m16 end with a o-ring
  19. S

    Fuel filter feed line

    Ok, so here is my plan: the plastic tube that goes from fuel pump to front of tank - I am going to cut off the connector at the front of the tank. Then I am going to use a union to join that tube to a new piece of vinyl tube that goes up to the filter. I will also buy a short piece of 3/8” metal...
  20. S

    Fuel filter feed line

    Yes it is
  21. S

    Fuel filter feed line

    so here is a pic of what is left of the tube. I assume the yellow piece is a seal for the quick connect?
  22. S

    Fuel filter feed line

    Yes, it has that screen and that is exactly what it is for. For the Evap lines I just disconnect the 2 evap lines from the tank and pop them out of the clips that run along the side of the tank and that way I don’t even have to touch the evap cannister. I tried removing lines from canister but...
  23. S

    Fuel filter feed line

    Wooops
  24. S

    Fuel filter feed line

    How would one know what filter is suitable?
  25. S

    Fuel filter feed line

    It is an 03 - and you are exactly right. It is the short tube that goes from the fuel connection at front of tank to the inlet of the filter. I am just changed the fuel pump and just have the tank supported by a jack so it’s no problem to get it out. I will get the tube out and see if it is good...

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