Date: Tue, 15 May 2007 17:20:16 GMT
From: still me <>
Subject: Re: DI failure:  happy ending

On Sat, 12 May 2007 17:10:52 GMT, Eeyore <> wrote: >The temperatures there aren't particularly excessive. It's entirely do-able >given good attention to detail. I expect GM cost-cutting was the problem. > >Graham Graham: I would disagree, based on the evidence I've seen. Every car I come across with a similar direct ignition system seems to get about the same miles (70K or so) out of these units. Saab, Audi, I think BMW also suffers from it. Even two Nissan's I've owned, an '88 and a '99 suffered from the same issue. I'm not saying that you could not build electronics to survive in this environment, but heat is the #1 enemy of electronic components. Dissipating that heat is very difficult in on top of an engine and under a hood. I think the current round of recalls is due to what you stated: Some sort of shortcut they took made those DI's fail very early. But, as I said, I think 70K is sort of par for the courser

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