Mechanics

RUNS ROUGH AFTER WARMING UP

1988 Volvo 760

Engine Performance problem
1988 Volvo 760 4 cyl Two Wheel Drive Automatic 170000 miles

My 1988 Volvo 760 turbo, starts fine but after warming up it starts to idle rough, as if someone had just pulled a spark plug wire off. If I let it cool down it will start fine again and run ok until it warms up, about 5-10 minutes. It's as if a switch is flipped and the engine just starts idling rough.
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PS12953
July 27, 2008.




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