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Thread: My Ma's 1986 Crown Victoria LX

  1. #401
    Fastest Box In South Jersey 86VickyLX's Avatar
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    Quote Originally Posted by packman View Post
    Not the problem. Made the changes, still no power to the relays. I am assuming that the Holley pump will make as much if not more noise than the stock pump. I definitely don't see fuel pressure at the gauge. I'm also assuming that I should be hearing a click or two from the relays. Next weekend I will prime the engine and try bumping it over to see if at least the starter can be engaged at the key. Giving some thought to crawling under the CV, putting it in neutral, and having it towed somewhere so I can start working on the garage. Maybe see if I can find somebody willing to solve an electrical problem. I probably should pull the engine at this point and do a thorough investigation; but I am simply running out of time and patience with this car.
    Depending on your schedule, I could probably help you out with that.

  2. #402
    Member of the Orb Alliance packman's Avatar
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    ^^^^^^^^^^THank you. I might take you up on that. ^^^^^^^^^^

    I have one more thing to check out next weekend. I never looked at the inertia switch; as the car was hit by the tree last year. And I tapped out the dent in the trunk lid; which wasn't bad; but may have triggered the inertia switch. I'll find out.

  3. #403
    Fastest Box In South Jersey 86VickyLX's Avatar
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    If your relays aren't getting power, the inertia switch has nothing to do with it.

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    I put the test light on the fuel pump relay and had power at the tan wire with black stripe. I went back to the fuel pump and tested what I think is the same wire and had no power. Since I am not an electrician, I don't know if I have a bad relay or if no power at the fuel pump is indicative of some other problem. I unplugged the relay and saw that the connector terminals are very cruddy; so I cleaned them with contact cleaner. I also have a spare RY46 relay that I might replace that relay with. If the fuel pump relay is the green one; then that is the one that had power. I will give the contact cleaner a little more time, then I will plug the connector into the replacement relay and see if it works.

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  5. #405
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    That's a no go. The problem still persists. It got dark fast; so I will power up the system tomorrow and confirm that I still have no power at the fuel pump. That being the case; should I think about removing the terminals at both ends of the power supply for the fuel pump harness and run a new power supply wire to the fuel pump?

    I noticed for the first time whilst doing this that I can hear my MSD 6AL buzzing in the glove compartment; not loud, but I can definitely hear it now. I guess I initially had that wired incorrectly.

  6. #406
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    More confusion: I checked out the inertia switch and there is the pink wire w/black stripe that is found at the relay and the fuel pump; and there is this orange wire. I'm gonna guess that the inertia switch was replaced at some point; or my Ford shop manual is wrong about the pink w/black stripe wire being the only fuel pump power supply. Also, is the button supposed to be depressed down to complete the circuit? Or is it supposed to be in the up position? In my pic, it's in the down position; and I can't pull it up.

    I'm giving some thought to getting another inertia switch; disconnecting the old switch and replacing it with a new one; setting the original fuel pump wire harness aside; and running my own wire harness from the relay, to the new inertia switch, and to the fuel pump. I'll have to strategically cut the fuel pump connector so I can reconnect it if I have to. It'll give me a good excuse to use my Deutsch connector kit.

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  7. #407
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    Quote Originally Posted by packman View Post
    More confusion: I checked out the inertia switch and there is the pink wire w/black stripe that is found at the relay and the fuel pump; and there is this orange wire. I'm gonna guess that the inertia switch was replaced at some point; or my Ford shop manual is wrong about the pink w/black stripe wire being the only fuel pump power supply. Also, is the button supposed to be depressed down to complete the circuit? Or is it supposed to be in the up position? In my pic, it's in the down position; and I can't pull it up.

    I'm giving some thought to getting another inertia switch; disconnecting the old switch and replacing it with a new one; setting the original fuel pump wire harness aside; and running my own wire harness from the relay, to the new inertia switch, and to the fuel pump. I'll have to strategically cut the fuel pump connector so I can reconnect it if I have to. It'll give me a good excuse to use my Deutsch connector kit.

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    Ford has a nasty habit of changing colors of wires between connectors. Listen, if you don't have power at the switch, then stop looking at the switch. The orange wire comes from the front of the car. The pink/black wire goes down to the fuel pump. You have a control issue. ECM not grounding the pump relay or maybe even a bad main ground for the ECU, the lone pigtail that attaches to the negative battery terminal. Again, let me know what your schedule is like and I will try to come and help you with this.

  8. #408
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    Zero progress this past weekend. Sinuses messing with me on Saturday; errands and chores took up most of the time yesterday. I attempted to drill the broken caliper bolt; only to find that none of my drill bits would cut into the material. I am going to get a quality cobalt drill bit and use that. The caliper bolt was too weak to back out of the spindle; but too strong for any of my drill bits

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  9. #409
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    Not much of an update. We're getting the garage demolished next week. So I spent the day putting the old summer wheel/tire set up back on the Crown Vic and put her back on the ground. My custom exhaust is a little lower than I would like, but a little higher off the ground than the old BBK setup. It sits above the width of my hand; which I couldn't do with the BBK setup. The good thing (I think) is that the lowest point is more forward (toward the front of the car) than the BBK fox body shorties/H-pipe. If I get the car running; I am curious to see if I will still need ramps to get it in and out of the driveway.

    I also suspected that I would not see a drop up front because of the weight difference between the 5.0 and the 5.8; and that is IMO because of the aluminum heads. They were a lot lighter than the E7 heads that came off the 5.8/F4TE. Don't know the weight difference between the E7 heads and E6 heads on the lopo.

    After some clearing out of the garage, I spent a little time replacing the coil connector that disintegrated when I removed it a couple months ago. Once everything is cleared out of the backyard, I will put the CV back up on jacks and continue to work on solving its various issues.

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  10. #410
    I'm an air-conditioned gypsy gadget73's Avatar
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    iron factory heads are likely so close to the same weight that you'd not see any difference in ride height.


    make the busted caliper bolt glow, let it cool off, it'll come out. It broke because its rusted in, not because its weak. If it won't drill that means its hard, which making it red hot will change. Once its annealed it will drill if needed, but more than fair bet the heat will break it loose.

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    Quote Originally Posted by phayzer5 View Post
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

  11. #411
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    So I got the day off and the yard is cleared out of the garage and all its contents. As such, I am going to spend a little time with the Crown Vic. I was reading the EVTM and did some research and I think I may have found the ECU ground. Is the cylindrical connector in the bottom of this picture the ecu ground? That looks to be the same connector that the fox bodies have. I am going to go out there and get a better look. When I took this picture (posted it back on 6/28/21 on page 19 in this thread), I didn't know what that was; if it is the ecu ground. It was very crusty when I picked it up; and I left it alone as it was cracked all around. I might disconnect it to see what the connector looks like inside. If it breaks, I will replace it with a Deutsch connector.

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  12. #412
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    Problem solved.............I hope.

    I pulled the connector apart and it disintegrated. The terminals were corroded and very crusty. The ring terminal terminal on the other end was broken and the wire was dangling where my radiator/fan bracket was mounted. Don't know how I missed that. I assembled a Deutsch connector and soldered it into the portion of the wire that was in good shape. Crimped on a new ring terminal and connected it to the battery ground. Turned the key and heard the fuel pump running. I primed the system and checked for leaks. Found nothing visible, but I get a faint whiff of fuel in the engine bay. Felt the fuel lines and injectors for moisture and didn't feel any. Nothing was wet either.

    I am going to empty all of the oil drums I accumulated in 2 years and have them ready for the first start. Which might be tomorrow if I get things organized. Hoping for success.

  13. #413
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    If you smell fuel in the engine bay, it could be the vent line or rubber tube that connects to the charcoal canister at the bottom of the passenger side front fender. WagonMan.
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  14. #414
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    Still a no go. I don't have power to the starter when I turn the key. I can jump the starter through the "S" terminal on the starter solenoid; where the red wire with blue stripe goes. It appears the solenoid and the starter are working; just doesn't seem to be getting the signal to activate the "S" terminal. I will go into my EVTM and see where the red wire w/blue stripe goes. Even though I already changed out the key cylinder and ignition switch, I checked the rod to see if it moves when I turn the key (it moves). So I ruled that out. I jacked the car back up and took a look at the neutral safety switch and realized that it was never changed out. But I haven't got to that point yet. Going to trace out that red wire w/blue stripe first.

    Otherwise, my fuel pump buzzes when I turn the key; the relays click; and the 6AL buzzes in the glove compartment. So at least that is now resolved. I'm making progress, just slow.

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