Piston Slap: Bullish on Ford's Electronic Automatic Temperature Control?

Ryan writes:

Hi Sajeev,

I have a problem with the air conditioning not functioning properly on my ’89 Ford Taurus LX equipped with Electronic Automatic Temperature Control (EATC).

When I start the car on a warm day the AC can blow icy cold air immediately, but the temperature gradually rises to ambient temperature by the time I reach the freeway, and is bad enough that I turn the EATC off. When I turn on the EATC by pressing AUTO, it often feels like it’s blowing maximum heat. I have noticed that when this happens the AC compressor clutch is not cycling on and off. During the winter, the AC compressor clutch clicks on and off. The problem seems to be intermittent and only occurs during warmer months. Also, during startup, you can hear an audible “whirring” noise in the dash, and that started to sound abnormal about the same time the AC stopped working. By “abnormal” I mean it lasts much longer than it used to. I believe the noise I’m hearing is the temperature blend door being moved so the EATC knows the position of the blend door.

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  • IBx1 Took them long enough to make the dashboard look halfway decent in one of their small trucks.
  • Mcs You're right. I'd add to that right now, demand is higher than supply, so basic business rules say to raise the price. The battery tech is rapidly changing too. A battery tech in production today probably won't be what you're using in 2 years. In 4 years, something different. Lithium, cobalt, and nickel. Now cobalt and in some cases nickel isn't needed. New materials like prussian blue might need to be sourced. New sources might mean investing in mines. LMFP batteries from CATL are entering production this year and are a 15% to 20% improvement in density over current LFP closing the density gap with NCA and NCM batteries. So, more cars should be able to use LMFP than were able to use LFP. That will lower costs to automakers, but I doubt they'll pass it on. I think when the order backlogs are gone we'll stop seeing the increases. Especially once Tesla's backlog goes away. They have room to cut prices on the Model Y and once they start accumulating unsold vehicles at the factory lot, that price will come tumbling down.
  • Acd Fifteen hundred bucks for OnStar makes some of the crap Southeast Toyota Distributors and Gulf States Toyota forces their customers to buy seem like a deal.
  • EBFlex Remember when Ford was all self pleasuring about the fake lightning starting under $40k? We all knew it was BS then and that Ford was taking a massive loss just to make that happen. This solidifies that.
  • SCE to AUX Matt, I think you've answered the question well.