Oldsmobile Bravada Digital Gauge Cluster Quirks! #shorts

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Oldsmobile Bravada Digital Gauge Cluster Quirks! #shorts

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    1. the reatta, on the other hand, did have a crt showing off all the car’s systems on a few green screens you could flip through.

  1. The speedometer moves up because every capacitor in that system is either leaky or wildly out of spec due to age. The buffering effect of the capacitors to absorb stray voltages is gone.

    1. So does this explanation apply to newer GMs say the late 90s to early 2000s because I’ve seen this in other GMs of that period where the speedometer will flinch if you rev the engine and the vehicle is not moving and in park.

    2. @@form109It’s electromagnetic interference. It can happen to any device with sensors or circuitry that are not properly isolated. The fact that the capacitors are getting old just worsens the interference issue.

    3. ​@@form109Most likely, yes, I mean 30-odd years – even 20 – is plenty of time to screw up a capacitor…

    1. I don’t 100% agree because yes many cars made between the mid 2000s and mid 2010s maybe a little later do look dated ,but what we have now as far as screens go it can’t get better than that,there’s always a peak for everything and much more than several ,high quality,very responsive ,immersive screens you can’t get,because they fixed all the major issues earlier cars had,so even a lot of years from now the cars of today will still be quite fresh

    2. @@Uilliam56I think we definitely still have some ways to go. The only really responsive and great screens are from EV manufacturers and some new gen legacy cars are just now starting to scratch that. Everyone uses Apple car play or Android auto anyway so it doesn’t really matter but yk, cool thought.

    3. @@DG-gx8pnAs well as the new CarPlay. Some vehicles are finally rolling off the line so the iPhone can run multiple displays in the vehicle, including the gauge cluster if it’s a display. Then you can basically have your dash be completely dynamic to look however you want. I’d love to have a customized gauge cluster and dash layout follow me into any vehicle I drive.

  2. fairly certain those are not CRTs but VFDs, which are cooler imho. Also, the speed moving is probably from interference. Wild guess: a decoupling capacitor is dead, or it’s just two wires that got too close and are causing interference from EMI

    1. Yes the speed reading is caused by electrical interference from the revving engine. GM trucks of that vintage with electronic speedometers show the needle creep off the peg when you rev them

    2. @@hchelfman yeah my guess is the wheel speed sensor wires got too close to… I don’t know, sparkplug wires? That’s the most likely explanation because of the stupid high voltage pulses

  3. so the speed climbing is a byproduct of how the transmission is designed and it’s location of the speed sensor some of the parts inside an automatic transmission are constantly spinning when the engine is running even in park so even if this vehicle had the analog gauges it would still do this after a certain amount of rpm it’s a thing with gm vehicles, i don’t recall any other vehicle i have had do this i would say that the digital gauges are more sensitive to this than the analog ones as i have only seen it at high rpms on the analog gauges usually around 5000 rpm or higher you would see the mph gauge move up

    1. @@beefwellington7323 still considered a VFD. There’s similarities but enough differences that they’re still two different things.

    1. Actually, it’s not a LCD display either but rather a Vacuum Florescent Display or VFD, for short, which was used on some car dashboards from the 80’s/90’s. The 1992 Mercury Grand Marquis is another example of a 90’s car that used a VFD dashboard.

    1. They often failed though the solder joints were trash in em I’ve fixed or replaced probably 8 or 9 of them

  4. I miss my 1984 camaro berlinetta, digital dash , pods at 9 and 3 for turn signals haz headlights wipers and hvac. Pod stereo.
    What a fun car.

  5. Um, actually… *Pushes up glasses* That’s a VFD, or Vacuum Florescent Display. While it does, technically, have the same illumination style as a CRT (even if it’s backwards), the phosphors are illuminated by the specific target being charged, not a focused electron beam being aimed by X/Y coils (as in the case of a Cathode Ray Tube). GM also used hilariously underpowered tech to run these displays, and limited them to a 1hz refresh rate, which just ages the crap out of them.

    Still love the vids, keep it up!

    1. Wouldn’t a 1hz refresh rate imply that it only refreshes once per second? It seemed like it updated several times per second on the tach when he revved it.

  6. I love 80’s and early 90’s cars I had an 88 Toyota Supra Turbo with the advanced suspension system that would stiffen when you rev the engine while at a stand still for launch to keep the car from squatting at take off and the LEDs would light up from soft to sport then stiff/launch would light up and the rear shocks would almost lock out to put all the power to the wheels instead of having leaching power to twist and have the car squat. And the first touchscreen on the 86 Buick Riviera was awesome and it’s still cooler than what we have now, considering now it looks like a tablet just stuck on the dashboard.

  7. I love it when Doug reviews old cars, it seems like he’s doing his best to not burst out laughing at the vintage tech and old school features 😂

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