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Old 04-05-2008, 10:16 PM
kerry kerry is offline
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Join Date: Jan 2002
Posts: 18,355
Exhaust gases in the coolant system, typically caused by a bad headgasket or cracked head. Not a good thing. Can't think why else there would be pressure after that length of time. There is a kit which tests for presence of exhaust products in the coolant.
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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