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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  • MaintenanceCosts There's no mystery anymore about how the Japanese took over the prestige spot in the US mass market (especially on the west coast) when you realize that this thing was up against the likes of the Fairmont, Citation, and Volaré. A massacre.
  • MaintenanceCosts Chevy used to sell almost this exact color on the Sonic, Bolt, and Camaro, as "Shock." And I have a story about that.I bought my Bolt in 2019. Unsurprisingly the best deal came from the highest-volume Bolt dealer in my very EV-friendly area. They had huge inventory; I bought right when Chevy started offering major incentives, and the car had been priced too high to sell well until that point.Half the inventory had a nice mix of trims and colors, and I was able to find the exact dark-gray-on-white Premier I wanted. But the real mystery was the other half of the inventory. It was something like 40 cars, all Shock on black, split between LT and Premier. You could get an additional $2000 or so off the already low selling price if you bought one of them. (Neither my wife nor I thought the deal worth it.) The cars were real and in the flesh; a couple were out front, but behind the showroom, there was an entire row of them.When I took delivery, I asked the salesman how on earth they had ended up with so many. He told me in a low voice that a previous sales manager had screwed up order forms for a huge batch of cars that were supposed to be white, and that no one noticed until a couple transporters loaded with chartreuse Bolts actually showed up at the dealer. Long story short, there was no way to change the order. They eventually sold all the cars and you still see them more often than you'd expect in the area.
  • EAM3 Learned to drive in my parents' 1981 Maxima. Lovely car that seemed to do everything right. I can still hear the "Please turn off the lights" voice in my head since everyone wanted a demo of the newfangled talking car. A friend of the family had a manual transmission one and that thing was fun!
  • FreedMike That wagon is yummy.
  • Syke Thanks, somehow I missed that.