Piston Slap: A GPS-targeting Sleeper Agent?

TTAC Commentator Waftabletorque writes:

Dear Sajeev,

I’m having an issue diagnosing a navigation system problem on my 2002 LS430. I’ve gone a few years with the GPS link not working, which means it no longer receives a satellite signal and defaults to dead-reckoning mode (the GPS symbol disappears on the touchscreen). It’s a nuisance issue but it’s low on my priorities.

It also happens that I’ve been using a dashcam for the last four years. I never linked the two together until I had a couple of dashcams go bad in 2016, and spent the whole summer without one. Well, my GPS started working again, and I chalked it up to a warm summer fixing some sort of electrical wiring fault in the antenna.

Once I got my fourth dashcam in September, I noticed my GPS stopped working again. It was getting cold in the mornings and I thought my good luck spell had ended. Then, it occurred to me that maybe the GPS gets disabled when the 12V was in use. I’ve since found that it’s true for all three of my 12-volt ports (cigarette lighter, arm rest, rear seat cigarette lighter).

None of my other electrical loads (seat heaters, defrosters, seat massagers, headlights, fridge, etc) seem to trigger this issue, and I replaced the car battery in 2013.

So, what’s my next step? Is this a grounding issue? Voltage issue? A conspiracy of aftermarket electronics deliberately disabling automotive functionality?

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What's Wrong With This Picture: Surveillance In The Age Of Taurus Edition

Like the song says, I always feel like… somebody’s watching me. But rarely are they as obvious as this old Taurus I spotted north of Columbus, Ohio over the weekend.

What’s going on here, B&B?

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ATS Red Light Camera Claims Driver Pulled 4g Turn

The city of St Petersburg, Florida uses camera systems sold by American Traffic Solutions (ATS, formerly American Traffic Systems) to issue tickets to drivers allegedly running red lights. According to The Newspaper, when the activists at St Petersburg Red Light Cameras reviewed logs of the 21,602 photo tickets issued in the city from October 29, 2011 to April 30, 2012 they discovered that the ATS cameras were reporting that they “measured” Bugatti Veyron level speeds from cars not realistically capable of that kind of velocity.

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Washington: Council Drops Cameras In Response To Voter Revolt

The city council in Mukilteo, Washington voted on Monday to reverse itself on the issue of photo enforcement. After over 1909 voters signed a petition to call for an election to ban red light cameras and speed cameras, council members began to have second thoughts about their contract with American Traffic Solutions (ATS) to operate automated ticketing machines. ATS also operates in the neighboring town of Lynnwood.

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  • Lorenzo Massachusetts - with the start/finish line at the tip of Cape Cod.
  • RHD Welcome to TTAH/K, also known as TTAUC (The truth about used cars). There is a hell of a lot of interesting auto news that does not make it to this website.
  • Jkross22 EV makers are hosed. How much bigger is the EV market right now than it already is? Tesla is holding all the cards... existing customer base, no dealers to contend with, largest EV fleet and the only one with a reliable (although more crowded) charging network when you're on the road. They're also the most agile with pricing. I have no idea what BMW, Audi, H/K and Merc are thinking and their sales reflect that. Tesla isn't for me, but I see the appeal. They are the EV for people who really just want a Tesla, which is most EV customers. Rivian and Polestar and Lucid are all in trouble. They'll likely have to be acquired to survive. They probably know it too.
  • Lorenzo The Renaissance Center was spearheaded by Henry Ford II to revitalize the Detroit waterfront. The round towers were a huge mistake, with inefficient floorplans. The space is largely unusable, and rental agents were having trouble renting it out.GM didn't know that, or do research, when they bought it. They just wanted to steal thunder from Ford by making it their new headquarters. Since they now own it, GM will need to tear down the "silver silos" as un-rentable, and take a financial bath.Somewhere, the ghost of Alfred P. Sloan is weeping.
  • MrIcky I live in a desert- you can run sand in anything if you drop enough pressure. The bigger issue is cutting your sidewalls on sharp rocks. Im running 35x11.5r17 nittos, they're fine. I wouldn't mind trying the 255/85r17 Mickey Thompsons next time around, maybe the Toyo AT3s since they're 3peak. I like 'em skinny.