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    fuel system questions/upgrades?

    Bet the sender is working right by now eh? As for the filler pipe hole, if you do drop the tank, knock out the restricter in the tube while you are there. Ever stopped at a truck stop? The big truck diesel pumps will not fit in the small fillers unless opened up. Now wouldn't that feel foolish?
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    7.3 Horsepower numbers (modified truck)

    Thanks Pat. I suppose it could be from different Dynos and the fact that you have a stick and I have a slushbox. I just don't know. Mike
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    Went from ROUGH idle to no start. HELP!

    Take off the fuel filler cap, remove the supply line from the tank to the pump, blow through the supply line into the tank with about 10psi and make sure it is free. Another thing you can do is hook up a hose from a fuel can right to the supply/intake part of the pump and see what happens. At...
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    Went from ROUGH idle to no start. HELP!

    Remove the bowl lid and have someone turn the key, or better yet, jumper the pump from the battery until the bowl is about full. A couple seconds. Then cap it and try, but you need to do a pressure check on the system. $10 gauge and fittings. I am suspecting a fuel problem. You might even...
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    Went from ROUGH idle to no start. HELP!

    No need for that. If you drained all the fuel out of the bowl once, there will not be enough left there to bother with. And you're welcome. By looks like it is trying to start, do you mean it is actually showing some kind of smoke out the tailpipe? If not, it is not trying to start. You may be...
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    7.3 Horsepower numbers (modified truck)

    Those are decent #s. Last April I made 311 and 640. Mine was through the stock slush box.;)
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    Went from ROUGH idle to no start. HELP!

    As far as the GPs, you could plug the block heater in for about 30 minutes and not need them or at least rule that out. To test the GPR, place a test lead on the large terminal that goes from GPR to the injector harness, Not the one that goes to the battery. Place the other lead on a good...
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    Went from ROUGH idle to no start. HELP!

    The switch is behind the kickpanel passenger side. There is even a hole to push it so the panel does not need to come off. I would start by running a jumper wire directly to the hot side terminal on the fuel pump from the positive battery post or known hot 12 supply. If the pump comes on, check...

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