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Thread: Speedometer needle glows less than before

  1. #1
    Join Date
    Aug 2017
    Location
    New York City
    Posts
    4

    Speedometer needle glows less than before

    I have replaced the bulbs which illuminate the instrument cluster within the last few years. On a recent road trip I noticed that the speedometer needle was only glowing red about halfway up to the numbers. Is this something which I can fix by replacing the bulbs again? I notice that that the black center of the speedometer needle does not have the red glow behind it that I see on the tach, temp, and fuel gauges. Maybe this means it is a bulb? Otherwise what could it be?

    I should add that none of the other places in the instrument cluster are "dead" as they have been in the past when I changed the bulbs out.

    There have been several instances recently where certain parts of the cluster (mostly the fuel gauge) has not illuminated and stays off sometimes a day sometimes two days but thus far has always illuminated eventually. My research on this points to the alternator -- I do have a rebuilt alt on the car (not sure of the brand, bought at a small rebuild shop in Queens) -- but the FLAPS test of the alternator has given me a clean bill of health. Some fluctuation on the voltmeter, which has improved since I added an extra ground wire.

    I'm chasing electrical gremlins!

  2. #2
    Join Date
    Aug 2011
    Location
    TALALA OK.
    Age
    69
    Posts
    106
    I would think bulbs and or the contact of the bulb socket to the printed circuit. Would recommend going led, you can get new sockets and led bulbs together and change them all. you can pick some off ebay or here get in touch with FBM FAST BLACK MERC He will have the right ones for everything.
    73TORINO SPORT 112K M. BOUGHT NEW
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