Piston Slap: Don't Jump to Conclusions!

TTAC commentator Towncar writes:

I just recently had a dead battery on the Town Car, so learning how to properly jump start a car battery has been on my mind. I’m telling you, there’s a lot to say on this subject once you get into it!

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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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  • Dennis Howerton Nice article, Cory. Makes me wish I had bought Festivas when they were being produced. Kia made them until the line was discontinued, but Kia evidently used some of the technology to make the Rio. Pictures of the interior look a lot like my Rio's interior, and the 1.5 liter engine is from Mazda while Ford made the automatic transmission in the used 2002 Rio I've been driving since 2006. I might add the Rio is also an excellent subcompact people mover.
  • Sgeffe Bronco looks with JLR “reliability!”What’s not to like?!
  • FreedMike Back in the '70s, the one thing keeping consumers from buying more Datsuns was styling - these guys were bringing over some of the ugliest product imaginable. Remember the F10? As hard as I try to blot that rolling aberration from my memory, it comes back. So the name change to Nissan made sense, and happened right as they started bringing over good-looking product (like the Maxima that will be featured in this series). They made a pretty clean break.
  • Flowerplough Liability - Autonomous vehicles must be programmed to make life-ending decisions, and who wants to risk that? Hit the moose or dive into the steep grassy ditch? Ram the sudden pile up that is occurring mere feet in front of the bumper or scan the oncoming lane and swing left? Ram the rogue machine that suddenly swung into my lane, head on, or hop up onto the sidewalk and maybe bump a pedestrian? With no driver involved, Ford/Volkswagen or GM or whomever will bear full responsibility and, in America, be ambulance-chaser sued into bankruptcy and extinction in well under a decade. Or maybe the yuge corporations will get special, good-faith, immunity laws, nation-wide? Yeah, that's the ticket.
  • FreedMike It's not that consumers wouldn't want this tech in theory - I think they would. Honestly, the idea of a car that can take over the truly tedious driving stuff that drives me bonkers - like sitting in traffic - appeals to me. But there's no way I'd put my property and my life in the hands of tech that's clearly not ready for prime time, and neither would the majority of other drivers. If they want this tech to sell, they need to get it right.