Cherie's '84 Coupe DeVille Project - Page 7
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RWD 19xx-1984 DeVille and Fleetwood,
1985-1996 Fleetwood and Brougham Forum Discussion, Cherie's '84 Coupe DeVille Project in Past Cadillac Vehicle Discussion; Originally Posted by lacville78 All you gotta do is listen for the pump when someone turns the key on, not ...
  1. #91
    nebulosity's Avatar
    nebulosity is offline Cadillac Owners Fanatic
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    Re: Cherie's '84 Coupe DeVille Project

    Quote Originally Posted by lacville78 View Post
    All you gotta do is listen for the pump when someone turns the key on, not cranking, just turning the key to the on position. The fuel pump should make some noise for a couple of seconds, you can cycle the key off and on to test.
    Also you can rent some "Noid lights" to test if there is power at the injectors. This is such a simple set up, no way you won't figure it out.
    Also no big deal testing for spark, just pull one plug wire and have someone crank it over, you don't have to check them all.

    Keep up the good work!
    Thanks for the suggestions! When I installed the fuel pump initially, I went back there to listen for it when my husband cranked the engine, and I couldn't hear it. I have problems hearing in general, so it could be just my hearing. Maybe I'll have a friend listen for the fuel pump.

    Noid lights? I'll have to read up on those -- I haven't heard of them before.

    Thanks again!

  2. #92
    lacville78 is offline Cadillac Owners Fanatic
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    Re: Cherie's '84 Coupe DeVille Project

    You can get them at autozone or O'reillys pretty much any parts store, you give them a deposit and when you bring them back you get your money, so they are free to use.
    You hook them up to the injector wires to test for voltage causing the injectors to shoot gas.
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  3. #93
    nebulosity's Avatar
    nebulosity is offline Cadillac Owners Fanatic
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    Re: Cherie's '84 Coupe DeVille Project

    On our way to try to start the Caddy...Wish us luck!! We need all the positive energy we can get!!!

  4. #94
    nebulosity's Avatar
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    Re: Cherie's '84 Coupe DeVille Project

    We are getting spark...



    But still no fuel to the throttle body. Caddy has a new fuel filter, there is 6 gal of premium fuel in the tank, fuel pump relay is working, but fuel pump doesn't seem to be turning on (I've never been able to hear it, even when it's working, so maybe it's working and I just can't hear it). The fuel pump worked WELL when I last cranked the engine in August 2012, possibly as late as October 2012, but it has sat unused since. The fuel pump may have something wrong with it. We're going to check the fuel lines for fuel between the tank and fuel filter, and we may drop the tank. I already called two of my favorite auto stores to make sure they'll have a fuel pump in stock in case we decide to replace it.



    To me atleast, I think I hear a couple fires like it's trying to start up. Let me know what you guys think.

    The reason why it's probably not starting with the starter fluid is I'm not confident about the initial timing setup. When we reinstalled the harmonic balancer, the crankshaft was rotated slightly away from cylinder #1 TDC, perhaps as much as 1/8 of a turn. I looks like I'll have to pull the distributor, rotate the engine exactly to cyl1 TDC and put the distributor back in.

    Somehow I feel satisfied even though I didn't get it started today. I'm going first think in the morning (ditching work a bit, lol) to try to get this work done on the Caddy.

  5. #95
    77CDV's Avatar
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    Re: Cherie's '84 Coupe DeVille Project

    It sounds like it almost caught a time or two. I think you may be on to something about the timing.
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  6. #96
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    Re: Cherie's '84 Coupe DeVille Project

    Quote Originally Posted by 77CDV View Post
    It sounds like it almost caught a time or two. I think you may be on to something about the timing.
    I'm glad you heard it too!! For a moment while I was cranking it, I kept thinking in disbelief, "wait, is it gonna start??!?!" So I need to sort out the timing issue and the fuel delivery issue. It sounds like if I resolve those that IT CAN START!

    I'm so excited. I'll keep you guys updated.

    ----------

    Oh, btw, we tested the stereo in the Caddy. Definitely need to do more testing, lol. Gonna bring another CD tomorrow.

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  7. #97
    turbojimmy's Avatar
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    Re: Cherie's '84 Coupe DeVille Project

    It's trying to fire, but it sounds like your timing is off. You can hear once in a while it will fire and fight the starter. It's firing at the wrong time.

  8. #98
    jamespowers is offline Cadillac Owners Connoisseur
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    Re: Cherie's '84 Coupe DeVille Project

    Quote Originally Posted by nebulosity View Post
    I'm glad you heard it too!! For a moment while I was cranking it, I kept thinking in disbelief, "wait, is it gonna start??!?!" So I need to sort out the timing issue and the fuel delivery issue. It sounds like if I resolve those that IT CAN START!

    I'm so excited. I'll keep you guys updated.

    ----------

    Oh, btw, we tested the stereo in the Caddy. Definitely need to do more testing, lol. Gonna bring another CD tomorrow.

    Better than no sound from the stereo at all.
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  9. #99
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    Re: Cherie's '84 Coupe DeVille Project

    Good news ppl! I have fuel to the throttle body again, yay!! Long story short I replaced the fuel pump. Dropped the tank by myself with 6 gal of gas still in it, tossed on the new pump, put it back in jacked it up and put the straps back on, all in about an hour and a half. 70% of that time was spent unscrewig the bolts on the stupid straps and making sure the tank didnt shift on the jack while I took them off. >_< Anyways, more info later.

  10. #100
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    Re: Cherie's '84 Coupe DeVille Project

    The spray from the fuel injectors is weak, so I doubt you'll be able to see it in the video, but here is the video I took anyway. :P It was great to have fuel in the throttle body again. My only guess is that in cranking it last fall to check the valve train movement, I ran the pump dry, but at the same time I remember taking out the fuel pump relay ( so that I could watch the valve train without spraying fuel everywhere. LOL It's either that I ran it dry and burnt it out or sitting for 8months unused killed it (...really though?), OR perhaps it had a manufacturer defect, and lastly, I'm hoping electrical problems are not to blame for it burning out. When we pulled out the fuel pump, I checked my soldering job from the last time I adapted the wiring harness to the new wires, and everything was beautifully perfect and intact. Yay! So hopefully no worries about my workmanship.

    No firing sounds in this particular video. We'll fix the timing for sure tomorrow.


    Oh, and have a picture of my Caddy from today. My husband was trying to help me unscrew the fuel filter, and then for some reason beyond me, he decided to keep trying until he stripped the shit out of the fuel filter nut. Brilliant. Note to self.. just do your own Caddy work.

    gIMG_3411.jpg
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  11. #101
    cadillaccruiser703 is offline Cadillac Owners Member
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    Re: Cherie's '84 Coupe DeVille Project

    wow very solid looking car
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  12. #102
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    Re: Cherie's '84 Coupe DeVille Project

    Quote Originally Posted by cadillaccruiser703 View Post
    wow very solid looking car
    It's my baby. <3 <3 I love this car so much.

  13. #103
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    Re: Cherie's '84 Coupe DeVille Project

    Great project--have enjoyed keeping up with this thread! I wonder if the fuel pump going out could be attributed to the ethanol most areas now have in gas. I keep hearing all sorts of horror stories about how it effects things when it sits. Just a thought.

    Keep up the good work and thanks for the thread! I love the older RWD Cadillacs--yours looks good!

    Mitch

  14. #104
    nebulosity's Avatar
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    Re: Cherie's '84 Coupe DeVille Project

    Quote Originally Posted by mitch2264 View Post
    Great project--have enjoyed keeping up with this thread! I wonder if the fuel pump going out could be attributed to the ethanol most areas now have in gas. I keep hearing all sorts of horror stories about how it effects things when it sits. Just a thought.

    Keep up the good work and thanks for the thread! I love the older RWD Cadillacs--yours looks good!

    Mitch
    Thanks, Mitch!

  15. #105
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    Re: Cherie's '84 Coupe DeVille Project

    Good looking caddy. I need to start my own thread here.
    talismandave likes this.

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