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How to diagnose FUEL S70 1998

posted by  someone claiming to be David on  Tue Mar 20 14:30 CST 2018 [RELATED]

1993 Volvo 850 - Went through all those parts you mentioned; pump, both relays, cap & rotor, plugs, plus fuel at rail and no luck. Finally it started stalling at stop lights all the time and "check engine" light flicked on and off while driving. Code was for cam position sensor. (just under the distributor) Changed that and all good for months. Then a couple of stalls again. Noticed engine had not been fully warming up. Coolant temperature sensor bad & stuck thermostat. Changed both those and it's been a dream since. Related to yours: Who knows? Just my experience.






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