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OK - I have been a Volvo owner for years, but this 740 problem is dangerous and annoying. Had the head gasket replaced recently. Car ran fine on long trips. Ran it in a rain storm. Stalled out and took a long time to restart. Made it home, ran it fine in dry weather for two days, then in good weather it started stalling at idle again. Replaced idle adjustment motor, high voltage pack and fuel pressure regulator. Drove it fine for a couple of days, then went through a car wash. Stalled out again.
Guessing is getting expensive.
Any ideas? Logic tells me there's a wire harness or bad connection somewhere that's affected by moisture.
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