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1994 Volvo 940 Automatic Wagon Won't Start, No Dimming Lights 900

posted by  walczyk on  Tue Nov 15 19:45 CST 2022
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last visit: Mon May 12 14:20 CST 2014
[RELATED]

I thought it was just a loose alternator belt, but now after charging the car and fixing the belt, the starter doesn't do anything at all, or draw any power. I measured the voltage of the small wire going to the starter and got 11.3V in Key Position II and 11.8V in KPIII. I thought that was weird, I thought the voltage would only be present on KPIII. I have the wiring diagram for this model, and there's a wire bypassing the neutral safety switch which I find bizarre, I feel like I am reading it wrong. Attached is a wiring diagram photo









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    1994 Volvo 940 Automatic Wagon Won't Start, No Dimming Lights 900 1994

    uid 46171's pic
    posted by  kittysgreyvolvo on  Wed Nov 23 07:29 CST 2022
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    last visit: Sat Oct 18 15:23 CST 2014
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    You may have a failed solenoid on the starter if you turn the key to start the engine.

    I forget whether the headlight shut off when starting as it does on 1986+ or 1989+ 240. I guess not on 1994 US market 940.

    Here some wiring diagrams. Mitchell service wiring diagrams:

    http://www.v8volvo.se/mekartips/volvo/index.html

    However, the voltages you list are low. A charged, connected battery should show around 12.5-13.5 DC volts with key out.

    The starter may have failed. So to a new Bosch or rebuilt by Bosch Bosch starter! Removing the starter motor can be a bother so replace with new or Bosch rebuilt.

    The fault could be in the ignition switch connected to the ignition lock. Use the lightest keychain possible. Do not add a bunch of stuff to weigh a key chain down. You can test continuity through the ignition switch but to get into the 900 series dash is a pain sort of.

    Also, when using the HREF or img src=, use the width= to 900 pixels in width.

    I guess BrickPix remains on the fritz. The images are still there and you can link to them. The image do not display in the BrickPix pages here.

    https://brickboard.s3.amazonaws.com/brickpix/14206.jpg

    Hope that helps.
    --
    Beh.








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      1994 Volvo 940 Automatic Wagon Won't Start, No Dimming Lights 900 1994

      posted by  walczyk on  Thu Nov 24 16:17 CST 2022
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      last visit: Mon May 12 14:20 CST 2014
      [RELATED]

      Thank you, that was definitely the case. I unfortunately was short on time and got a cheap starter but I was thankfully able to get it in and out easily. I think I’ll replace with a Bosch in the future, but now there’sa big misfire on cylinder #3 and is stumping me







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