It is possible that the glowplugs were incorrect for your engine and the heat killed them. May even be a power problem, too much power would, in theory, burn 'em up as well. Or could just have been a bad batch of glow plugs. I had dead glow plugs and didn't know it. I didn't ask why they died, I assume they were just old. Starts up beautifully now.

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1984 190D 2.2 Auto 220k
2001 Jeep Cherokee Sport 70K
2004 Lexus RX-330 ??K
2005 Chrylser Crossfire LTD 6K

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