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1995 Plymouth Grand Voyager Questions & Answers
Engine cuts out while driving on the highway
JUST SAW, the most common cause of your engine dying and backfiring while driving on highway would be low fuel pressure. check fuel filter for foreign debris. filter may be clogged or restricted, also a weak fuel pujmp. the other thing could also be a stuck e.g.r. valve, this would have some exhaust carbon deposit stuck on the seat of the valve producing a vacuum leak, but it would not idle properly.faulty fuel pump would give you a good engine idle but would starve for fuel at high highway speeds, when the engine needs for fuel for proper operation.
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