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Is my 940 burning coolant? 900 1991

posted by  geomar111 on  Sat Jan 22 00:55 CST 2005
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last visit: Tue Nov 10 05:03 CST 2009
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Brad, for a really objective compression check, with all four plugs out , do it and record pressures. Remember rule #1. NEVER do a compression check on a cold engine. If you are somehow interrrupted between say #2 & #3....warm it up again two minutes. Don't forget..if all plugs are out you will not get confusing results.If you have a constant-pressure-release at the top of the opened expansion tank(which I've seen many times), it's time for a weekend under the hood.
I happen to agree that the only "normal" plug is the one with the "tanning-bed" look. Too clean = too hot or too many baths.






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