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850 sputters, loses power, stalls 850 1997

posted by  thaywood on  Fri Mar 6 08:23 CST 2015
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last visit: Sun Jun 29 08:38 CST 2014
[RELATED]

'97 850, 170K miles, owned since almost new. Has been running fine. Suddenly today car sputtered, lost power and stalled. Took a few tries to get it started. It sputtered a few seconds and then it drove ok for the remaining few blocks to work.

Not saying it was running rich but when it was sputtering it was like the "lawn mower syndrome" when engine is run cold just for a few seconds and then gets flooded. Maybe that is just describing "sputtering", just trying to give a feel for what it was like.

No CEL.

Car history: have not had to do hardly anything other than maintenance on the car ever. Replaced plugs (year ago), distributor cap and I think wires a few years ago, O2 sensor at 50K. Fuel filter probably but cannot remember when.
FWIW the secondary air pump was replaced about 10 years ago and I think has died again although it's not turning on the CEL any longer (it was about a year ago but went away). Unless I've forgotten something everything else on the car is original.

Thoughts on how to diagnose?





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