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OldCadTech last won the day on January 7

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About OldCadTech

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    CaddyInfo Participant

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  • Gender
  • Location
    Washington State

Previous Fields

  • Car Model and Year
    1998 Seville STS - 2002 Seville STS
  • Engine
    Northstar 4.6L V8 (LD8/L37)

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  1. Probably the most common is a defective blower module and then the blower motor itself. BUT, better to diagnose it and not throw parts at it.
  2. Is this the door "lock" signal wire? You may have to remove the door panel and connect directly to the wire at the actuator. @Cadillac Jim may be able to get a better location pinpoint and/or better circuit description from the FSM.
  3. OldCadTech


    Its asking you if you want to enter the PCM to look at the different parameters. If there is a code it will appear as P0300 for example. If you enter diagnostics and it goes directly to the PCM? there are no codes.
  4. OldCadTech

    i have a code on my 94eldarado PCM?

    Sorry, I'm not quite sure what the question is. PCM stands for Powertrain Control Module. What engine do you have? What is the code?
  5. First, check the trans fluid and make sure the TConverter fluid isn't mixed with the trans fluid. Second, I would check the main transmission harness & connector for pulled connectors or pinched wiring.
  6. Did you run the engine and observe the belt and pulley rotating? Could be the thermostat sticking or the bypass hose that goes to the coolant recovery/surge tank jar is restricted. The small hose that goes to the top of the coolant recovery jar can become restricted. When the engine is cool remove the recovery jar/radiator cap, smell the inside of the tank. Does it smell like exhaust? Make sure the coolant level with the engine cold, not running is about 2" below the bottom of the opening. Remove the 3/8" hose from the recovery jar and direct it towards the opening. Have someone start the engine and there should be full flow through the hose. If not you will need to remove the hose and remove the restriction. To fill the cooling system, be sure to use Dex-cool with a 50-50 solution of coolant and distilled water. You can use good, non-hard, drinkable water or use the premix solution. Could be something as simple as a defective recovery jar/surge tank cap not holding pressure. The cooling fans may not be coming on. If you don't find a "smoking gun" we'll have to get a lot more information on the symptoms
  7. Look at the rear of the front cylinder head and make sure the water pump drive belt is still good.
  8. Certainly sounds like the generator. It should maintain 13.6 or higher.
  9. You have the wiring to the starter to connect to.
  10. OldCadTech

    Battery revisited 2006 DTS

    The BCM is passenger side near the A pillar, slightly below and right of the glove box. I have done something similar with a Fluke 88 DVOM using the min max feature, but it is not a leave it on overnight kind of thing cuz the meter will auto - off. I have not used anything like what you have described though it sounds good in theory. I'm not sure how or what equipment would be needed to do that. Try to recall what happens the day before the vehicle would not start. Was it a lot of very short trips, long trips or was it a lot of accessory usage, such as defrost, a/c usage, blower motor running, night driving etc.. You will need a switch like the one above to do an accurate draw test though.
  11. OldCadTech

    Battery revisited 2006 DTS

    Probably a lucky guess... Did you have the charging system tested? If I recall, you had varying voltage during driving. Not uncommon for the generators to stop charging as KHE experienced.
  12. A little trick I use so the solder points don't end up in a clump is to stagger the solder joints a little, That way the wires fit back into the wire conduit a LOT better.
  13. OldCadTech

    Flasher relay

    @Will How did the switch replacement go? Did it work?
  14. OldCadTech

    Flasher relay

    We only did one that way, we had long wires and a 9V battery to light it off. Since it was my repair order, I got to light it off. which also meant if anything went wrong I got the blame too. We had a test track on the dealership lot which covered almost the whole city block. So we had lots of space.