Welcome to Club Hot Rod!  The premier site for everything to do with Hot Rod, Customs, Low Riders, Rat Rods, and more. 

  •  » Members from all over the US and the world!
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and hundreds of thousands of posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

 
Like Tree5Likes
  • 1 Post By jerry clayton
  • 2 Post By DennyW
  • 1 Post By DennyW
  • 1 Post By firebird77clone

Thread: Chevvie electrical gurus only
          
   
   

Reply To Thread
Results 1 to 15 of 15
  1. #1
    firebird77clone's Avatar
    firebird77clone is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2005
    Location
    Hamilton
    Car Year, Make, Model: 69 nomad, 73 charger, 74 vega
    Posts
    2,909

    Chevvie electrical gurus only

     



    OK. I'm plinking away at this 1990 Chevrolet P60 van.

    There's a problem with the front turn signals.

    What appears to be a ground at both assemblies seems to have been deliberately cut.

    If I reconnect these grounds they pull a LOT of juice, but don't blow a fuse. ( the other marker lamps dim down). However, on the left side, when I connected it, the blinker indicator (green light on dash) lights continuously. ( I think this is key).

    I could use any assistance, particularly schematics.

    Thanks .
    .
    Education is expensive. Keep that in mind, and you'll never be terribly upset when a project goes awry.
    EG

  2. #2
    jerry clayton's Avatar
    jerry clayton is online now CHR Member Visit my Photo Gallery
    Join Date
    Feb 2006
    Location
    Bartlett
    Posts
    6,378

    Issues I've found several times over many years---people wire turn/park/marker lights incorrectly with power going to ground which then goes thru both filaments in the bulbs and then body of lamp to fender creating lots of current draw plus that then effects the flasher----------

    get volt/ohm guage and dissconnect all wires to light, remove bulbs, check to find true ground and also identify which wire feeds which bulb filament-------

    some of the overseas supplied bulbs have sloppy contact points on bottom and don't line up on the terminal in bulb socket---------

    At least turn signals are usually light weight and don't need a --------------------
    NTFDAY likes this.

  3. #3
    DennyW is offline CHR Member Visit my Photo Gallery
    Join Date
    Oct 2004
    Location
    city
    Posts
    619

    ((I could use any assistance, particularly schematics.))
    Go to Auto Zone.com and put your vehicle in for the schematics... There is 3 there.
    NTFDAY and 40FordDeluxe like this.



  4. #4
    firebird77clone's Avatar
    firebird77clone is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2005
    Location
    Hamilton
    Car Year, Make, Model: 69 nomad, 73 charger, 74 vega
    Posts
    2,909

    I'm not having luck with the auto zone site, but I'll try again.

    I used a dremel tool with cut off wheel to separate the blinker assemblies and soldered in a couple of bulbs, glued them back together with $4 epoxy. The repair saved at least $2 over buying the replacements! But seriously, I don't have anything else to do, and it was kind of enjoyable.

    The Blinkers work, but not the running lamps.

    It would be nice to find anything for this beast. It's as if it were excluded from popular data bases.
    .
    Education is expensive. Keep that in mind, and you'll never be terribly upset when a project goes awry.
    EG

  5. #5
    DennyW is offline CHR Member Visit my Photo Gallery
    Join Date
    Oct 2004
    Location
    city
    Posts
    619

    Does this help ?

    1.gif

    2.gif
    NTFDAY likes this.



  6. #6
    firebird77clone's Avatar
    firebird77clone is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2005
    Location
    Hamilton
    Car Year, Make, Model: 69 nomad, 73 charger, 74 vega
    Posts
    2,909

    It doesn't have a cigar lighter.

    THANK YOU !!!

    Smiley face (how do I do that?)
    DennyW likes this.
    .
    Education is expensive. Keep that in mind, and you'll never be terribly upset when a project goes awry.
    EG

  7. #7
    firebird77clone's Avatar
    firebird77clone is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2005
    Location
    Hamilton
    Car Year, Make, Model: 69 nomad, 73 charger, 74 vega
    Posts
    2,909

    BTW

    This site

    Because of

    YOU GUYS

    ROCKS !!
    .
    Education is expensive. Keep that in mind, and you'll never be terribly upset when a project goes awry.
    EG

  8. #8
    firebird77clone's Avatar
    firebird77clone is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2005
    Location
    Hamilton
    Car Year, Make, Model: 69 nomad, 73 charger, 74 vega
    Posts
    2,909

    I'm having trouble interpreting the LH and RH front marker lamps. Do they 'ground' through the turn indicator and park turn lamps, and effectively "blink" when power is applied to the turn lamps?
    .
    Education is expensive. Keep that in mind, and you'll never be terribly upset when a project goes awry.
    EG

  9. #9
    DennyW is offline CHR Member Visit my Photo Gallery
    Join Date
    Oct 2004
    Location
    city
    Posts
    619

    Yes. The left hand and right hand is when you are sitting inside the car. Left hand, drivers side, unless you live in England... Hahaha. Just kidding...
    Follow the flasher wire, and you will see the route it goes.
    Here's an example showing the left hand route...

    1 1.gif



  10. #10
    firebird77clone's Avatar
    firebird77clone is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2005
    Location
    Hamilton
    Car Year, Make, Model: 69 nomad, 73 charger, 74 vega
    Posts
    2,909

    No, that's not right.
    When the voltage reaches the LH front turn lamp, it would not continue past the filament common.

    The voltage will however, continue along the LT BLU wire, across the filament of the LH turn indicator to ground (illuminating the bulb). The voltage will also feed the LH front marker lamp. This will place 12 V on both sides of the LH marker lamp, and the lamp will extinguish, until the turn flasher de- energizes, at which time the LH front marker lamp is being sourced voltage from the brown wire, and will "ground" through the LH turn indicator filament, and the LH front park lamp, illuminating the LH front marker lamp.
    .
    Education is expensive. Keep that in mind, and you'll never be terribly upset when a project goes awry.
    EG

  11. #11
    DennyW is offline CHR Member Visit my Photo Gallery
    Join Date
    Oct 2004
    Location
    city
    Posts
    619

    That is correct. I knew I would get you thinking... hahaha. When one goes on, the other goes off. They oscillate between the two. Gets attention.



  12. #12
    firebird77clone's Avatar
    firebird77clone is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2005
    Location
    Hamilton
    Car Year, Make, Model: 69 nomad, 73 charger, 74 vega
    Posts
    2,909

    Oh, BTW... The black wire is not a ground. It is spliced off the brown wire feeding the marker lamps in the hood. It's a wonder I didn't blow a fuse when I grounded it. Also, what the schematic shows as a brown wire to the front park lamps is really white.

    I'll have to track it down, but my knee jerk reflex is to go straight to the turn switch assembly.

    I did fix the headlights: given the overall condition of the van, I expected the bulbs were bad, and I scored a full set plus spares for $20. Unfortunately, it turned out to be a cut hi beam wire at the hi beam switch.

    Anyone need a headlight?
    .
    Education is expensive. Keep that in mind, and you'll never be terribly upset when a project goes awry.
    EG

  13. #13
    firebird77clone's Avatar
    firebird77clone is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2005
    Location
    Hamilton
    Car Year, Make, Model: 69 nomad, 73 charger, 74 vega
    Posts
    2,909

    That was a bit impish of you, Denny.

    You tested me good!
    .
    Education is expensive. Keep that in mind, and you'll never be terribly upset when a project goes awry.
    EG

  14. #14
    firebird77clone's Avatar
    firebird77clone is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2005
    Location
    Hamilton
    Car Year, Make, Model: 69 nomad, 73 charger, 74 vega
    Posts
    2,909

    Also: I had two marker lamps out on the top rear of the van. One was smashed, the other full of water. The design does not allow it to be cut apart like the front markers, so I just ordered replacements for the two. They came is as different manufacturers and were just different enough that it took a great deal of effort to make them work. The plugs are different, so I had to splice it in. The old screws had to be exchanged for longer. They ground through one of the screws, which go through a metal plate behind the fiberglass. The originals had a brass ring which facilitated conductance through the screw, but I had to cut a slot in the face of the new lamps so the ground wire ring terminal could sit under the screw head.

    To cut the slot, I used a high power soldering iron with a plastic cutting / melting tip. Then I followed it up with a utility knife to clean it up. Worked out fine, but I would have happily paid more for the exact replacements.
    .
    Education is expensive. Keep that in mind, and you'll never be terribly upset when a project goes awry.
    EG

  15. #15
    DennyW is offline CHR Member Visit my Photo Gallery
    Join Date
    Oct 2004
    Location
    city
    Posts
    619

    Good job... Also, when doing electrical, and on mounting surfaces, I like to use a little dielectric grease, or wheel bearing grease. This keeps corrosion away. I do the same at my battery terminals, and around the base of the terminals. Just a coating, not a gob of it... hahaha



Reply To Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Links monetized by VigLink