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> Engine Running Rough, intermittent rough engine
post Aug 9 2008, 10:06 PM
Post #1


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Location: australia
Drives: 1993 940 Gl and 1995 SE wagon

HI Guys

My engine sometimes purrs yet at other times runs as if it is firing on 3 or 4 cylinders with a resultant loss of power.

This did occur after I had degreased the engine and hosed it off. I do suspect that water has got in somewhere. I checked the ignition leads plugs at idle and they appear to be firing.

This does seem to occur less when in sports mode. (I do not know if there has any bearing on the problem) As i am a new 850 owner, what could be a possible cause and what could I check up?


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post Aug 12 2008, 02:18 AM
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Location: Kuala Lumpur, MALAYSIA
Drives: 1996 Volvo 855 T5 FWD, 1989 Honda Civic 2-Door FWD

QUOTE(trevortrumpet @ Aug 10 2008, 11:06 AM)

This did occur after I had degreased the engine and hosed it off.

HAHA! :haha: :haha: :haha:

Sorry, i didnt mean to laugh at you, i only wanted to laugh WITH you.
That is, IF you were laughing in the first place.

In anycase, if you checked tha archive or backdated postings, you will see that i have also encountered a similar situation before in the past, quite a few years ago.

Unfortunately, the only way for you to be sure, is to open up all the 5 holes for the plugs and suck the water out. You can use a brake-oil vacuum-suction for this purpose. Be careful NOT to remove the spark-plugs before you suck the water dry.

Next, also check the distributor cap.

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post Aug 17 2008, 06:47 PM
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Member No.: 42,489
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Location: largo FL, USA
Drives: 2001 S 40, 2004 XC 90, 1994 850 TR wagon

Just let sit in the hot sun for a day with hood open. If live in Fl
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