Hi all. My Volvo 855 auto has developed a rare case of cutting out in traffic when warmed up. The engine revs and idles OK in neutral or park, but when placed in drive (or reverse) it will begin to cough and splutter and sound like it's only running on just one or two cylinders and then cut out after about ten seconds. It is then hard to get it to fire again, and has to be cranked quied a bit before it does. Leaving it to cool for half an hour seems to cure the problem short term but it fails again once warmed up. Open road driving seems OK mabe because the airflow keeps whatever is failing cool. An eighty mile open road trip is OK but a two mile town crawl means disaster. Please help as I'm at my wits end.
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'97 855 That does 50,000 miles anually
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