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  1. cucvrus

    6.2 on its way out?

    I am not sure if we discussed this but make sure the fuel pump is the correct one. In this case if the shoe fits wear it does not apply. I seen this issue end up as a wrong fuel pump a few times. Lets look at that pump. I personally would like to see the lever that is activating the fuel pump. A...
  2. cucvrus

    6.2 on its way out?

    Yes I had 4 brand new injection pumps. I used one and it lasted less than 6 months. I used the others as cores and gave a few to friends that wanted a spare core. I don't trust old injection pumps. If in doubt replace the injection pump.
  3. cucvrus

    6.2 on its way out?

    I am not sure where you are on this project. But if you vacuum tested the feed and return lines and they held vacuum I think the lift pump and hose needs to be looked at. I just completed a no start project that lead me down a rabbit hole that found multiple fuel related issues. Even when I...
  4. cucvrus

    6.2 on its way out?

    Fuel does not need to leak out to allow air is. If it gets air it also allows for back feed of fuel. This puts massive amounts of air in the lines and then the system must purge that air to operate and start as designed. It really isn't that difficult to keep the air out. But like I stated. If...
  5. cucvrus

    6.2 on its way out?

    Yes any air leaks and it will drop the fuel. The fuel system must be tight. How did the feed line install go for you?
  6. cucvrus

    6.2 on its way out?

    This is the old dance around the real problem tradition. I am only saying this because I know that people in general like to avoid the ultimate answer and solution for monetary reasons. Been there and done that. The real issue is if you didn't replace the injection pump yourself with a known new...
  7. cucvrus

    6.2 on its way out?

    I never went into much details. This is the new tag that was on the pump. https://www.steelsoldiers.com/threads/1986-cucv-m1009-decade-after-being-wrecked.173878/page-35#lg=post-2296572&slide=3 It runs great and had lots of power. Good Luck. Seattle is a bit far for me to travel to assist. Good...
  8. cucvrus

    6.2 on its way out?

    I have been using DCP https://dieselcare.store/collections/chevy-fuel-systems/products/rebuild-service-for-1983-1994-6-9l-7-3l-ford-idi-db2 Never had a problems. Right now I am waiting for one to come back. The best thing I seen recently is that they replace the metal nomenclature tag on the...
  9. cucvrus

    6.2 on its way out?

    I would say injection pump issues. Get it rebuilt at a reputable shop. It costs about $500. to do in parts. Good Luck.
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